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Abstract
This paper describes the statistical treatment of determining the sampling interval for the digital Ra roughness measurement. It is proved that the optimum sampling interval can be determined from the Rq/Ra ratio of the surface to be measured and the evaluation length. A nomograph is suggested for practical uses on the workshop floor.
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Affiliation(s)
- D Y Yim
- Department of Production Engineering, Korea Advanced Institute of Science and Technology, Cheongryang, Seoul, Korea
| | - S W Kim
- Department of Production Engineering, Korea Advanced Institute of Science and Technology, Cheongryang, Seoul, Korea
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202
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Park DA, Yun JE, Kim SW, Lee SH. Surgical and clinical safety and effectiveness of robot-assisted laparoscopic hysterectomy compared to conventional laparoscopy and laparotomy for cervical cancer: A systematic review and meta-analysis. Eur J Surg Oncol 2016; 43:994-1002. [PMID: 27546015 DOI: 10.1016/j.ejso.2016.07.017] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [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: 07/01/2016] [Revised: 07/14/2016] [Accepted: 07/14/2016] [Indexed: 12/27/2022] Open
Abstract
AIM This study aimed to evaluate the surgical safety and clinical effectiveness of RH versus LH and laparotomy for cervical cancer. METHODS We searched Ovid-Medline, Ovid-EMBASE, and the Cochrane library through May 2015, and checked references of relevant studies. We selected the comparative studies reported the surgical safety (overall; peri-operative; and post-operative complications; death within 30 days; and specific morbidities), and clinical effectiveness (survival; recurrence; length of stay [LOS]; estimated blood loss [EBL]; operative time [OT]) and patient-reported outcomes. RESULTS Fifteen studies comparing RH with OH and 11 comparing RH with LH were identified. No significant differences were found in survival outcomes. The LOS was shorter and transfusion rate was lower with RH compared to OH or LH. EBL was significantly reduced with RH compared to OH. Compared to OH, overall complications, urinary infection, wound infection, and fever were significantly less frequent with RH. The overall, peri-operative, and post-operative complications were similar in other comparisons. Several patient-reported outcomes were improved with RH, though each outcome was reported in only one study. CONCLUSIONS RH appears to have a positive effect in reducing overall complications, individual adverse events including wound infection, fever, urinary tract infection, transfusion, LOS, EBL, and time to diet than OH for cervical cancer patients. Compared to LH, the current evidence is not enough to clearly determine its clinical safety and effectiveness. Further rigorous prospective studies with long-term follow-up that overcome the many limitations of the current evidence are needed.
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Affiliation(s)
- D A Park
- Health Technology Assessment Research Team, National Evidence-based Healthcare Collaborating Agency, Seoul, Republic of Korea
| | - J E Yun
- Health Technology Assessment Research Team, National Evidence-based Healthcare Collaborating Agency, Seoul, Republic of Korea
| | - S W Kim
- Department of Obstetrics and Gynecology, Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | - S H Lee
- Department of Nursing Science, College of Nursing, Gachon University, Incheon, Republic of Korea.
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203
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Park JP, Lee JJ, Kim SW. Highly luminescent InP/GaP/ZnS QDs emitting in the entire color range via a heating up process. Sci Rep 2016; 6:30094. [PMID: 27435428 PMCID: PMC4951813 DOI: 10.1038/srep30094] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 06/28/2016] [Indexed: 12/02/2022] Open
Abstract
InP-based quantum dots (QDs) have attracted much attention for use in optical applications, and several types of QDs such as InP/ZnS, InP/ZnSeS, and InP/GaP/ZnS have been developed. However, early synthetic methods that involved rapid injection at high temperatures have not been able to reproducibly produce the required optical properties. They were also not able to support commercialization efforts successfully. Herein, we introduce a simple synthetic method for InP/GaP/ZnS core/shell/shell QDs via a heating process. The reaction was completed within 0.5 h and a full color range from blue to red was achieved. For emitting blue color, t-DDT was applied to prevent particle growth. From green to orange, color variation was achieved by adjusting the quantity of myristic acid. Utilizing large quantities of gallium chloride led to red color. With this method, we produced high-quality InP/GaP/ZnS QDs (blue QY: ~40%, FWHM: 50 nm; green QY: ~85%, FWHM: 41 nm; red QY: ~60%, FWHM: 65 nm). We utilized t-DDT as a new sulfur source. Compared with n-DDT, t-DDT was more reactive, which allowed for the formation of a thicker shell.
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Affiliation(s)
- Joong Pill Park
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea
| | - Jae-Joon Lee
- Department of Energy & Materials Engineering, Dongguk University, Seoul 100-715, Korea
| | - Sang-Wook Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea
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204
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Lim WH, Chae IH, Yoon CH, Choi DJ, Lim SW, Park WJ, Doh JH, Kim SH, Kim MA, Lee SH, Yoon JH, Ahn YK, Hyon MS, Kim KS, Kim YK, Lee HC, Seol SH, Hwang KK, Choi SW, Han KR, Shin ES, Kim SW, Lee BK, Kim HS. Comparison of dual antiplatelet therapy prescribed as one-pill versus two-pill regimen. A pooled analysis of individual patient data from the three MR-CAPCIS trials. Thromb Haemost 2016; 116:78-86. [PMID: 27029284 DOI: 10.1160/th15-12-0931] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Accepted: 03/15/2016] [Indexed: 12/10/2022]
Abstract
Fixed-dose combination (FDC) drugs can simplify the medication regimen and potentially improve adherence. However, evidence is lacking about the efficacy and safety of FDC drugs of clopidogrel plus aspirin. Individual data from the three independent MR-CAPCIS trials were pooled and analysed. In those trials, subjects who had been treated with either dual antiplatelet therapy (DAPT) or aspirin alone after drug-eluting stent (DES) implantation were randomly assigned to one-pill or to two-pill DAPT group. Platelet reactivity was measured with VerifyNow-P2Y12 and aspirin point-of-care assays at baseline and eight weeks after treatment. In the present study, primary efficacy endpoint was changes in platelet reactivity unit (PRU) between baseline and eight weeks. A total of 965 subjects were analysed. In prior clopidogrel and aspirin users, PRU was well maintained regardless of switching to either one-pill or two-pill DAPT (ΔPRU=0.4 vs 0.0, p=0.939). In prior aspirin users, PRU was decreased by 73.7 in one-pill DAPT and 77.5 in two-pill DAPT group, with no differences between them (p=0.499). The incidence of high on-treatment platelet reactivity at eight weeks, defined as PRU≥235 in Western people, was 34.8 % in one-pill DAPT group and 37.6 % in two-pill DAPT group (p=0.380), and that defined as PRU ≥275 in Oriental people was 17.7 vs 21.7 % (p=0.129). Independent predictors of high platelet reactivity on clopidogrel were female gender, increasing age, and diabetes. Study drugs were well tolerated. In conclusion, FDC one-pill DAPT showed similar efficacy to two-pill DAPT in terms of platelet reactivity in patients receiving DES in Korea.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Hyo-Soo Kim
- Hyo-Soo Kim, MD, PhD, Professor, Department of Internal Medicine, Cardiovascular Center, Seoul National University Hospital, 101 Daehak-ro, Jongro-gu, Seoul 110-744, Korea, Tel.: +82 2 2072 2226, Fax: +82 2 766 8904, E-mail : ,
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205
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Abstract
In molecular biology, DNA sequence matching is one of the most crucial operations. Since DNA databases contain a huge volume of sequences, fast indexes are essential for efficient processing of DNA sequence matching. In this paper, we first point out the problems of the suffix tree, an index structure widely-used for DNA sequence matching, in respect of storage overhead, search performance, and difficulty in seamless integration with DBMS. Then, we propose a new index structure that resolves such problems. The proposed index structure consists of two parts: the primary part realizes the trie as binary bit-string representation without any pointers, and the secondary part helps fast access to the trie's leaf nodes that need to be accessed for post-processing. We also suggest efficient algorithms based on that index for DNA sequence matching. To verify the superiority of the proposed approach, we conduct performance evaluation via a series of experiments. The results reveal that the proposed approach, which requires smaller storage space, can be a few orders of magnitude faster than the suffix tree.
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Affiliation(s)
| | - Sanghyun Park
- Department of Computer Science, Yonsei University, Korea
| | - Jee-Hee Yoon
- Division of Information Engineering and Telecommunications, Hallym University, Korea
| | - Sang-Wook Kim
- College of Information and Communications, Hanyang University, Korea
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206
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Abstract
Exact match queries, wildcard match queries, and k mismatch queries are widely used in various molecular biology applications including the searching of ESTs (Expressed Sequence Tags) and DNA transcription factors. In this paper, we suggest an efficient indexing and processing mechanism for such queries. Our indexing method places a sliding window at every possible location of a DNA sequence and extracts its signature by considering the occurrence frequency of each nucleotide. It then stores a set of signatures using a multi-dimensional index such as the R*-tree. Also, by assigning a weight to each position of a window, it prevents signatures from being concentrated around a few spots in indexing space. Our query processing method converts a query sequence into a multi-dimensional rectangle and searches the index for the signatures overlapping with the rectangle. Experiments with real biological data sets have revealed that the proposed approach is at least 4.4 times, 2.1 times, and several orders of magnitude faster than the previous one in performing exact match, wildcard match, and k-mismatch queries, respectively.
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Affiliation(s)
| | | | - Jung-Im Won
- Department of Computer Science, Yonsei University, Korea
| | - Sang-Wook Kim
- College of Information and Communications, Hanyang University, Korea
| | - Jee-Hee Yoon
- Division of Information Engineering and Telecommunications, Hallym University, Korea
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207
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Joo YH, Chang DY, Kim JH, Jung MH, Lee J, Cho HJ, Jeon SY, Kim SJ, Kim SW. Anti-inflammatory effects of intranasal cyclosporine for allergic rhinitis in a mouse model. Int Forum Allergy Rhinol 2016; 6:1139-1144. [PMID: 27309728 DOI: 10.1002/alr.21808] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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: 02/01/2016] [Revised: 05/03/2016] [Accepted: 05/12/2016] [Indexed: 01/18/2023]
Abstract
BACKGROUND Although topical corticosteroids are considered a safe and effective drug for allergic rhinitis (AR), some AR patients do not show sufficient symptomatic improvement by use of topical corticosteroids. Topical cyclosporine is a safe and effective drug for patients with allergic conjunctivitis, particularly for those with steroid-resistant allergic conjunctivitis. We investigated the anti-inflammatory effects of intranasal cyclosporine for AR using a mouse model. METHODS After establishment of allergic inflammation in 5-week-old BALB/c mice, cyclosporine was administered intranasally 3 times per week for 2 weeks. To confirm its anti-inflammatory effects, triamcinolone acetonide (TAC) was utilized as a control drug. Histopathologic changes were evaluated using Sirius red and Giemsa staining for eosinophilic and mast cell infiltration, respectively. The levels of cytokines in sinonasal tissues, including tumor necrosis factor (TNF), interleukin (IL)-4, IL-5, and IL-13, were assessed based on a cytometric bead array. RESULTS The degree of eosinophilic infiltration was significantly decreased by instillation of cyclosporine, the potency being similar to TAC. However, the number of mast cells was not decreased by cyclosporine or TAC. The levels of TNF, IL-4, IL-5, and IL-13 were significantly decreased after treatment with cyclosporine. CONCLUSION The anti-inflammatory effects of topical cyclosporine for AR were equivalent to those of topical corticosteroids. Topical cyclosporine may be useful for the treatment of AR, although human studies are required.
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Affiliation(s)
- Yeon-Hee Joo
- Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Dong-Yeop Chang
- Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea.,Institute of Health Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Jin Hyun Kim
- Institute of Health Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Biomedical Research Institute, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Myeong Hee Jung
- Biomedical Research Institute, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Jino Lee
- Laboratory of Immunology and Infectious Diseases, Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Hyun-Jin Cho
- Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea.,Institute of Health Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Sea-Yuong Jeon
- Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea.,Institute of Health Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Department of Otorhinolaryngology, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - Seong-Jae Kim
- Institute of Health Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Department of Ophthalmology, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Sang-Wook Kim
- Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea. .,Institute of Health Sciences, Gyeongsang National University, Jinju, Republic of Korea. .,Department of Otorhinolaryngology, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.
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208
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Kim KM, Kim YJ, Choi SH, Lim S, Moon JH, Kim JH, Kim SW, Jang HC, Shin CS. The effects of body mass index on the hereditary influences that determine peak bone mass in mother-daughter pairs (KNHANES V). Osteoporos Int 2016; 27:2057-64. [PMID: 26809191 DOI: 10.1007/s00198-016-3487-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 01/06/2016] [Indexed: 12/26/2022]
Abstract
UNLABELLED A daughter's bone mineral density (BMD) is significantly correlated with her mother's BMD, but the daughter's body mass index (BMI) could modulate this association. Maternal inheritance dominantly affects daughters with a lower BMI, but BMI could compensate for hereditary influences in daughters with a higher BMI in terms of daughter's BMD. INTRODUCTION Achieving optimal peak bone mass at a young age is the best way to protect against future osteoporosis and subsequent fractures. Although environmental components influence bone mass accrual, but peak bone mass is largely programmed by inheritance. The aims of this study were to investigate the influence of maternal inheritance on the daughter's bone mass and to assess whether these influences differ according to the daughter's body mass index (BMI). METHODS We used data obtained from the 2010 Korean National Health and Nutrition Examination Survey V and included 187 mother-daughter pairs. Bone mineral density (BMD) was measured at the lumbar spine (LS), femur neck (FN), and total hip (TH) by using dual-energy X-ray absorptiometry (DXA). The daughter group was stratified into two groups according to the mean BMI (21.4 kg/m(2)). RESULTS The daughters' BMD correlated significantly with both their BMI and their mothers' Z-score for each skeletal site. In the daughters with a lower BMI (≤21.4 kg/m(2)), the BMDs at the FN and TH were affected more by the mothers' Z-score than by the daughters' BMI. Meanwhile, the influence of the daughters' BMI on their BMD was higher than that of their mothers' Z-score in daughters with a higher BMI (>21.4 kg/m(2)). Moreover, the mothers' Z-scores were a significant predictor of their daughters having Z-scores < -1.0 only in daughters with a lower BMI. CONCLUSIONS This study suggests that maternal inheritance is an important determinant of the daughters' bone mass, but that this hereditary factor may vary according to the daughters' BMI.
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Affiliation(s)
- K M Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Y J Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - S H Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - S Lim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - J H Moon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - J H Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - S W Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
- Department of Internal Medicine, Seoul National University Borame Hospital, Seoul, Korea
| | - H C Jang
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - C S Shin
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea.
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210
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Matsuba I, Sawa T, Kawata T, Kanamori A, Jiang D, Machimura H, Takeda H, Han JH, Wang K, Tanaka K, Shen L, Ajima M, Kaneshiro M, Kim SW, Umezawa S, Asakura T, Suzuki S, Kim SC. Cross-National Variation in Glycemic Control and Diabetes-Related Distress Among East Asian Patients Using Insulin: Results from the MOSAIc Study. Diabetes Ther 2016; 7:349-60. [PMID: 27255328 PMCID: PMC4900985 DOI: 10.1007/s13300-016-0178-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION Guidelines recommend insulin progression for patients with type 2 diabetes (T2D) with inadequate glycemic control. The Multinational Observational Study Assessing Insulin use (MOSAIc [ClinicalTrials.gov identifier, NCT01400971]) study is a 2-year observational study, investigating factors that influence insulin progression in T2D patients. In this first of two reports, we describe baseline clinical and psychosocial characteristics of Chinese, Japanese, and South Korean patients who participated in MOSAIc. Insulin treatment, factors affecting progression, and outcomes will be reported separately. METHODS Patients with T2D using insulin for ≥3 months were eligible. Baseline demographic, clinical, and psychosocial data were collected from patients. Quality of life instruments, including the Diabetes Distress Scale (DDS), were used to assess patient's concerns about disease management, support, and emotional burden. The association between the DDS and the selected covariates was also assessed. RESULTS A total of 373 patients in China, 157 in Japan, and 141 in South Korea were enrolled from July 2011 to July 2013. Mean ± standard deviation duration (years) of T2D differed across countries (China 11.4 ± 7.5; Japan 13.8 ± 8.7; South Korea 15.7 ± 8.8; P < 0.0001). Japanese patients used more noninsulin anti-hyperglycemic agents than did Chinese or South Korean patients (P < 0.0001). Exclusive use of basal insulin was most common in Japan and South Korea compared with China, whereas approximately 66.8% of Chinese patients used mixed insulin. Covariates associated with the DDS were younger age [P = 0.044 (Japan)], higher incidence of monthly hypoglycemia [P = 0.036 [China]; P = 0.021 (South Korea)], and male gender [P = 0.037 (South Korea)]. CONCLUSIONS There were significant differences amongst East Asian patients with T2D treated with insulin, including in quality of life scores. Results from the MOSAIc longitudinal analyses will further investigate trends of insulin intensification and barriers to insulin progression. FUNDING Eli Lilly and Company.
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Affiliation(s)
- Ikuro Matsuba
- The Study Group of the Diabetes Committee, Kanagawa Physicians Association, Kanagawa, Japan.
| | - Tasuku Sawa
- Department of Internal Medicine, Kawasaki Saiwai Hospital, Kanagawa, Japan
| | - Takehiro Kawata
- The Study Group of the Diabetes Committee, Kanagawa Physicians Association, Kanagawa, Japan
| | - Akira Kanamori
- The Study Group of the Diabetes Committee, Kanagawa Physicians Association, Kanagawa, Japan
| | | | - Hideo Machimura
- The Study Group of the Diabetes Committee, Kanagawa Physicians Association, Kanagawa, Japan
| | - Hiroshi Takeda
- The Study Group of the Diabetes Committee, Kanagawa Physicians Association, Kanagawa, Japan
| | | | - Ke Wang
- Eli Lilly Suzhou Pharmaceutical Company, Shanghai, China
| | - Keiji Tanaka
- The Study Group of the Diabetes Committee, Kanagawa Physicians Association, Kanagawa, Japan
| | - Li Shen
- Eli Lilly Suzhou Pharmaceutical Company, Shanghai, China
| | - Miho Ajima
- Department of Diabetology, Kawasaki Saiwai Clinic, Kanagawa, Japan
| | - Mizuki Kaneshiro
- The Study Group of the Diabetes Committee, Kanagawa Physicians Association, Kanagawa, Japan
| | - Sang-Wook Kim
- Department of Internal Medicine, Kangwon National University Hospital, Chuncheon, Korea
| | - Shinichi Umezawa
- The Study Group of the Diabetes Committee, Kanagawa Physicians Association, Kanagawa, Japan
| | - Taro Asakura
- The Study Group of the Diabetes Committee, Kanagawa Physicians Association, Kanagawa, Japan
| | | | - Seoyoung C Kim
- Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
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211
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Abstract
One of the most highlighted cadmium-free quantum dots (QDs), InP-based QDs, have improved their optical properties. However, InP-based QDs have some practical drawbacks, for example, stability, compared with CdSe-based QDs. Poor stability of InP-based QDs yields critical problems, such as agglomeration and photoluminescence quenching in light emitting diode (LED). It has to be solved for applications and most research has focused on thick outer shells as an effective solution. We introduced magnesium cations for improving stability of InP-based QDs. We applied very small amounts of Mg cations as surface stabilizers, as a result, stability of QDs is clearly improved. Then, QD based LED chips also yield improved values including RA of 84.4, CCT of 3799 K, and luminous efficiency of 129.57 Im/W, which are highly improved data compared with our previous results.
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212
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Chang DY, Lee J, Choi SW, Lee HJ, Kang H, Yeo SC, Joo YH, Cho HJ, Jeon SY, Kim RB, Kim SW. Interleukin-4 enzyme-linked immunospot assay may be useful for diagnosing sensitization to house dust mite. Int Forum Allergy Rhinol 2016; 6:1007-1012. [PMID: 27122253 DOI: 10.1002/alr.21786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 02/18/2016] [Accepted: 03/08/2016] [Indexed: 11/12/2022]
Abstract
BACKGROUND The skin prick test (SPT) is considered a standard test for identification of allergens, but it has some limitations in clinical practice. The multiple allergen simultaneous test (MAST), which measures allergen-specific immunoglobulin E in patients' serum, is a widely used alternative test, but is limited by its relatively low sensitivity and specificity. As a novel diagnostic test to identify allergens, we investigated the sensitivity and specificity of an interleukin-4 (IL-4) enzyme-linked immunospot (ELISpot) assay for Dermatophagoides farinae (Der f) and Dermatophagoides pteronyssinus (Der p). METHODS Based on the symptoms and SPT results, 43 house dust mite (HDM) allergic rhinitis (AR) patients and 41 control subjects were included. Peripheral blood was drawn from each subject for IL-4 ELISpot assay and MAST. The receiver operating characteristic (ROC) curve analysis was conducted to determine the cutoff values. Sensitivity, specificity, and positive and neg predictive values were compared between the 2 tests. RESULTS The sensitivity, specificity, and areas under the ROC curve (AUCs) of the IL-4 ELISpot assay were 88.4%, 97.6%, and 0.939 for Der f, and 95.3%, 97.5%, and 0.971 for Der p, respectively. However, the sensitivity, specificity, and AUC of MAST were 76.7%, 73.2%, and 0.777 for Der f, and 69.8%, 75.6%, and 0.788 for Der p, respectively. CONCLUSION The IL-4 ELISpot assay showed higher sensitivity, specificity, and AUC than MAST, which indicates its clinical feasibility for diagnosing allergy for HDM. A further study is needed to determine the accuracy of the IL-4 ELISpot assay for other common allergens.
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Affiliation(s)
- Dong-Yeop Chang
- Institute of Health Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Jino Lee
- Laboratory of Immunology and Infectious Diseases, Graduate School of Medical Science and Engineering, KAIST, Daejeon, Republic of Korea
| | - Sung-Won Choi
- Laboratory of Immunology and Infectious Diseases, Graduate School of Medical Science and Engineering, KAIST, Daejeon, Republic of Korea
| | - Hyeong Joo Lee
- Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Hyunmo Kang
- Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Seong Chul Yeo
- Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Yeon-Hee Joo
- Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Hyun-Jin Cho
- Institute of Health Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Sea-Yuong Jeon
- Institute of Health Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea.,Department of Otorhinolaryngology, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - Rock Bum Kim
- Regional Cardiocerebrovascular Disease Center, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Sang-Wook Kim
- Institute of Health Sciences, Gyeongsang National University, Jinju, Republic of Korea. .,Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea. .,Department of Otorhinolaryngology, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.
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213
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Bae H, Lee D, Kim YW, Choi J, Lee HJ, Kim SW, Kim T, Noh YH, Ko JH, Bang H, Lim I. Effects of hydrogen peroxide on voltage-dependent K(+) currents in human cardiac fibroblasts through protein kinase pathways. Korean J Physiol Pharmacol 2016; 20:315-24. [PMID: 27162486 PMCID: PMC4860374 DOI: 10.4196/kjpp.2016.20.3.315] [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] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 04/01/2016] [Accepted: 04/04/2016] [Indexed: 01/29/2023]
Abstract
Human cardiac fibroblasts (HCFs) have various voltage-dependent K(+) channels (VDKCs) that can induce apoptosis. Hydrogen peroxide (H2O2) modulates VDKCs and induces oxidative stress, which is the main contributor to cardiac injury and cardiac remodeling. We investigated whether H2O2 could modulate VDKCs in HCFs and induce cell injury through this process. In whole-cell mode patch-clamp recordings, application of H2O2 stimulated Ca(2+)-activated K(+) (KCa) currents but not delayed rectifier K(+) or transient outward K(+) currents, all of which are VDKCs. H2O2-stimulated KCa currents were blocked by iberiotoxin (IbTX, a large conductance KCa blocker). The H2O2-stimulating effect on large-conductance KCa (BKCa) currents was also blocked by KT5823 (a protein kinase G inhibitor) and 1 H-[1, 2, 4] oxadiazolo-[4, 3-a] quinoxalin-1-one (ODQ, a soluble guanylate cyclase inhibitor). In addition, 8-bromo-cyclic guanosine 3', 5'-monophosphate (8-Br-cGMP) stimulated BKCa currents. In contrast, KT5720 and H-89 (protein kinase A inhibitors) did not block the H2O2-stimulating effect on BKCa currents. Using RT-PCR and western blot analysis, three subtypes of KCa channels were detected in HCFs: BKCa channels, small-conductance KCa (SKCa) channels, and intermediate-conductance KCa (IKCa) channels. In the annexin V/propidium iodide assay, apoptotic changes in HCFs increased in response to H2O2, but IbTX decreased H2O2-induced apoptosis. These data suggest that among the VDKCs of HCFs, H2O2 only enhances BKCa currents through the protein kinase G pathway but not the protein kinase A pathway, and is involved in cell injury through BKCa channels.
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Affiliation(s)
- Hyemi Bae
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Donghee Lee
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Young-Won Kim
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Jeongyoon Choi
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Hong Jun Lee
- Biomedical Research Institute, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Sang-Wook Kim
- Department of Internal Medicine, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Taeho Kim
- Department of Internal Medicine, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Yun-Hee Noh
- Department of Biochemistry, School of Medicine, Konkuk University, Seoul 05029, Korea
| | - Jae-Hong Ko
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Hyoweon Bang
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Inja Lim
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
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Rhee OJ, Rhee MY, Oh SW, Shin SJ, Gu N, Nah DY, Kim SW, Lee JH. Effect of sodium intake on renin level: Analysis of general population and meta-analysis of randomized controlled trials. Int J Cardiol 2016; 215:120-6. [PMID: 27111173 DOI: 10.1016/j.ijcard.2016.04.109] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 04/11/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND We evaluated the association between sodium intake and plasma renin levels in the cross sectional study and meta-analysis of randomized controlled trials, whether there is a persistent elevation of plasma renin by longer-term sodium intake restriction. METHODS Plasma renin activity (PRA) and 24-h urine sodium (24HUNa) excretion were measured from individuals randomly selected from a community. Simple and multiple linear regression analyses adjusted for age, 24-h systolic blood pressure, 24-h average heart rate, fasting blood glucose and gender were performed. For meta-analysis, 74 studies published from 1975 to mid-2014 were identified in a systematic literature search using EMBASE, CINAHL, and MEDLINE. Random effects meta-analyses and a meta-regression analysis were performed. RESULTS Among the 496 participants recruited, 210 normotensive and 87 untreated hypertensive subjects were included in the analysis. There was no significant association between PRA and 24HUNa in the total population, or hypertensive and normotensive individuals. In the meta-analysis, the standard mean difference (SMD) of renin level by sodium intake reduction was 1.26 (95% CI: 1.08 to 1.44, Z=12.80, P<0.001, I(2)=87%). In the meta-regression analysis, an increase in a day of intervention was associated with a fall in SMD by -0.04 (95% CI: -0.05 to -0.02, Z=-5.27, P<0.001, I(2)=86%), indicating that longer duration of reduced sodium intake would lead to lesser SMD of renin level. CONCLUSIONS The present population based cross-sectional study and meta-analysis suggests that prolonged reduction in sodium intake is very unlikely associated with elevation of plasma renin levels.
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Affiliation(s)
- O J Rhee
- Department of Social Welfare, Soongsil University, Seoul, Republic of Korea
| | - M Y Rhee
- Cardiovascular Center, Dongguk University Ilsan Hospital, Goyang, Republic of Korea.
| | - S W Oh
- Department of Family Medicine, Dongguk University Ilsan Hospital, Goyang, Republic of Korea
| | - S J Shin
- Division of Nephrology, Dongguk University Ilsan Hospital, Goyang, Republic of Korea
| | - N Gu
- Department of Clinical Pharmacology and Therapeutics, Dongguk University Ilsan Hospital, Goyang, Republic of Korea
| | - D Y Nah
- Division of Cardiology, Department of Internal Medicine, College of Medicine, Dongguk University, Gyeongju, Republic of Korea
| | - S W Kim
- Department of Statistics, Survey and Health Policy Research Center, Dongguk University, Seoul, Republic of Korea
| | - J H Lee
- Department of Thoracic and Cardiovascular Surgery, Dongguk University Ilsan Hospital, Goyang, Republic of Korea
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Abstract
BACKGROUND Berberine (Ber), used widely as an antibacterial, antifungal, and anti-inflammatory drug, has long been used as a gastrointestinal remedy in Chinese traditional medicine. Recent reports have suggested that Ber suppresses Th17 responses that was mediated by direct actions on T cells and thymic stromal lymphopoietin production in primary mast cells. It has been suggested that Ber may be useful in treating allergic response. The purpose of this study was to assess the effects of Ber treatment on allergic inflammation in an allergic rhinitis mouse model and to examine the underlying mechanism(s). METHODS BALB/c mice were divided into control, Derf with no treated (Derf), Ber treated, and Ber with anti-C25 monoclonal antibody treated (Ber + anti-CD25) groups. All mice, with the exception of the control group, were sensitized with an intraperitoneal i.p. injection of Dermatophagoides farinae (Derf). Mice in the Ber and Ber + anti-CD25 group were treated intranasally with 10 #181;g/mL. Then, 1 week after sensitization, all mice were challenged intranasally with 20 #181;g Derf for 5 consecutive days. Mice in the anti-CD25 group were treated intraperitoneally with 250 #181;g anti-CD25 monoclonal antibody 1 day before the first intra-nasal challenge with Derf. Allergic symptom scores, eosinophil counts, and serum Derf-specific IgE levels were measured. T-bet, GATA-3, interferon-g (IFN-γ), interleukin (IL)-10, IL-13, and Foxp3 expression was examined by real-time polymerase chain reaction and Western blotting. CD4⁺ CD25⁺ Foxp3⁺ T cells were assessed by flow cytometry. RESULTS Symptom scores, serum Derf-specific IgE levels, GATA-3 mRNA levels, T-bet mRNA levels, and tissue eosinophil counts were decreased in the Ber versus the Derf group. In the Ber + anti-CD25 group, serum IL-10 levels were decreased versus the control, Derf, and Ber groups. In the Ber + anti-CD25 mAb groups, Foxp3 mRNA levels were decreased versus the control group. In the Ber group, Foxp3 mRNA levels were increased versus the control group. In the Ber group, the percentage of CD4⁺ CD25⁺ Foxp3⁺ T cells was increased versus the Derf group. The percentage of CD4⁺ CD25⁺ Foxp3+ T cells was increased in the Ber versus the Derf groups. CONCLUSIONS In our study, Ber reduced allergic inflammation significantly. Moreover, our findings suggest that the mechanism of action of Ber may be via CD4⁺ CD25⁺ Foxp3⁺ Treg cells, possibly through not only by increasing their numbers but also altering their function.
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Shen YB, Ferket P, Park I, Malheiros RD, Kim SW. Effects of feed grade L-methionine on intestinal redox status, intestinal development, and growth performance of young chickens compared with conventional DL-methionine. J Anim Sci 2016; 93:2977-86. [PMID: 26115284 DOI: 10.2527/jas.2015-8898] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
This study was conducted to test the effects of supplemental L-Met on redox status, gut development, and growth performance of young broiler chickens compared with DL-Met. A total of 888 (half male and half female) 1-d-old Ross 308 chickens were weighed and randomly allotted to 7 treatments in a randomized complete block design for 21 d, including a basal diet (BD), the BD + 0.095% L-Met or DL-Met, the BD + 0.190% L-Met or DL-Met, and the BD + 0.285% L-Met or DL-Met (representing 60, 70, 80, and 90% of the Met + Cys requirement). Feed disappearance and BW were recorded every 7 d. Liver and duodenum samples were collected on d 0, 7, and 21 to measure redox status and intestine morphology. On d 7, chicks fed a diet supplemented with either 0.285% L-Met or 0.285% DL-Met had increased (P < 0.05) concentrations of glutathione (GSH) and reduced (P < 0.05) protein carbonyl (PC) and malonedialdehyde contents in duodenum mucosa compared with chicks fed the BD. Chicks fed a diet supplemented with 0.285% L-Met had greater (P < 0.05) villus width compared with chicks fed a diet supplemented with 0.285% DL-Met. Chicks fed a diet supplemented with 0.285% L-Met had lower (P < 0.05) crypt depth and greater (P < 0.05) villus height:crypt depth ratio compared with chicks fed a diet supplemented with 0.285% DL-Met or the BD. On d 21, chicks fed a diet supplemented with 0.285% L-Met had increased (P < 0.01) concentrations of GSH and total antioxidant capacity (TAC) but reduced (P < 0.05) PC content in duodenum mucosa compared with chicks fed a diet supplemented with 0.285% DL-Met and the BD. Chicks fed a diet supplemented with 0.285% L-Met had greater (P < 0.05) villus height compared with chicks fed the BD. During the entire 21-d supplementation of either L-Met or DL-Met, ADG and G:F were enhanced (P < 0.01) compared with chicks fed the BD. Chicks fed diets supplemented with L-Met had greater (P < 0.05) ADG and G:F than chicks fed diets supplemented with DL-Met. The relative bioavailability of L-Met to DL-Met for ADG and G:F was 138.2 and 140.7%, respectively. Overall, supplementation of either L-Met or DL-Met has beneficial effects on villus development in association with increased GSH production and levels of TAC and reduced protein oxidation in duodenum. Supplementation of L-Met served a better function on redox status and development of the gut of chicks compared with DL-Met. Chicks fed diets with L-Met had better growth response than chicks fed diets with DL-Met.
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Lee SH, Cho EH, Ahn SH, Kim HM, Lim KH, Kim BJ, Kim SW, Kim TH, Kim SY, Kim GS, Kang MI, Koh JM. Prediction of Future Osteoporotic Fracture Occurrence by Genetic Profiling: A 6-Year Follow-Up Observational Study. J Clin Endocrinol Metab 2016; 101:1215-24. [PMID: 26756118 DOI: 10.1210/jc.2015-3972] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [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] [Indexed: 02/04/2023]
Abstract
CONTEXT Heredity is an important risk factor for osteoporotic fracture, but it remains unclear whether genetic factors improve the predictability of future fracture occurrence. OBJECTIVE To compare an integration model of genetic profiling with the current model for predicting future fracture occurrence. DESIGN AND SETTING A retrospective observational cohort study. PARTICIPANTS Postmenopausal women aged 45-93 years who were untreated (n = 117), hormone-treated (n = 491), or bisphosphonate (BP)-treated (n = 415), with a mean 6.1-year follow-up. MAIN OUTCOMES MEASURES The main outcome was incident fractures. Ninety-five single nucleotide polymorphisms were genotyped. We calculated the Korean-specific genetic risk score 35 (GRS35) from 35 single nucleotide polymorphisms associated with osteoporosis-related traits at the baseline visit. RESULTS Osteoporotic fracture occurred more frequently in the highest GRS35 tertile group than in the lower two tertile groups after adjustments for confounders (hazard ratio [HR], 1.73; 95% confidence interval [CI], 1.17-2.55). The associations of the GRS35 with incident fracture were only significant in the BP group (HR, 2.25; 95% CI, 1.28-3.95) and not in the untreated (HR, 1.26; 95% CI, 0.34-4.66) and hormone-treated (HR, 1.21; 95% CI, 0.62-2.36) groups. Integration of the GRS35 into the current model further improved its predictability for incident fracture occurrence by 6.3% (P = .010). CONCLUSIONS Genetic profiling can more accurately predict future fracture risk, especially in individuals taking BPs.
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Affiliation(s)
- Seung Hun Lee
- Division of Endocrinology and Metabolism (S.H.L., H.-M.K., K.-H.L., B.-J.K., G.S.K., J.-M.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; Department of Internal Medicine (E.-H.C., S.-W.K.), Kangwon National University College of Medicine, Chuncheon 24289, Korea; Department of Endocrinology (S.H.A.), Inha University School of Medicine, Incheon 22332, Republic of Korea; Skeletal Diseases Genome Research Center and Department of Orthopedic Surgery (T.-H.K., S.-Y.K.), Kyungpook National University School of Medicine, Daegu 41944, Korea; and Department of Endocrinology and Metabolism (M.I.K.), The Catholic University of Korea, College of Medicine, Seoul 137-701, Korea
| | - Eun-Hee Cho
- Division of Endocrinology and Metabolism (S.H.L., H.-M.K., K.-H.L., B.-J.K., G.S.K., J.-M.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; Department of Internal Medicine (E.-H.C., S.-W.K.), Kangwon National University College of Medicine, Chuncheon 24289, Korea; Department of Endocrinology (S.H.A.), Inha University School of Medicine, Incheon 22332, Republic of Korea; Skeletal Diseases Genome Research Center and Department of Orthopedic Surgery (T.-H.K., S.-Y.K.), Kyungpook National University School of Medicine, Daegu 41944, Korea; and Department of Endocrinology and Metabolism (M.I.K.), The Catholic University of Korea, College of Medicine, Seoul 137-701, Korea
| | - Seong Hee Ahn
- Division of Endocrinology and Metabolism (S.H.L., H.-M.K., K.-H.L., B.-J.K., G.S.K., J.-M.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; Department of Internal Medicine (E.-H.C., S.-W.K.), Kangwon National University College of Medicine, Chuncheon 24289, Korea; Department of Endocrinology (S.H.A.), Inha University School of Medicine, Incheon 22332, Republic of Korea; Skeletal Diseases Genome Research Center and Department of Orthopedic Surgery (T.-H.K., S.-Y.K.), Kyungpook National University School of Medicine, Daegu 41944, Korea; and Department of Endocrinology and Metabolism (M.I.K.), The Catholic University of Korea, College of Medicine, Seoul 137-701, Korea
| | - Hyeon-Mok Kim
- Division of Endocrinology and Metabolism (S.H.L., H.-M.K., K.-H.L., B.-J.K., G.S.K., J.-M.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; Department of Internal Medicine (E.-H.C., S.-W.K.), Kangwon National University College of Medicine, Chuncheon 24289, Korea; Department of Endocrinology (S.H.A.), Inha University School of Medicine, Incheon 22332, Republic of Korea; Skeletal Diseases Genome Research Center and Department of Orthopedic Surgery (T.-H.K., S.-Y.K.), Kyungpook National University School of Medicine, Daegu 41944, Korea; and Department of Endocrinology and Metabolism (M.I.K.), The Catholic University of Korea, College of Medicine, Seoul 137-701, Korea
| | - Kyeong-Hye Lim
- Division of Endocrinology and Metabolism (S.H.L., H.-M.K., K.-H.L., B.-J.K., G.S.K., J.-M.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; Department of Internal Medicine (E.-H.C., S.-W.K.), Kangwon National University College of Medicine, Chuncheon 24289, Korea; Department of Endocrinology (S.H.A.), Inha University School of Medicine, Incheon 22332, Republic of Korea; Skeletal Diseases Genome Research Center and Department of Orthopedic Surgery (T.-H.K., S.-Y.K.), Kyungpook National University School of Medicine, Daegu 41944, Korea; and Department of Endocrinology and Metabolism (M.I.K.), The Catholic University of Korea, College of Medicine, Seoul 137-701, Korea
| | - Beom-Jun Kim
- Division of Endocrinology and Metabolism (S.H.L., H.-M.K., K.-H.L., B.-J.K., G.S.K., J.-M.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; Department of Internal Medicine (E.-H.C., S.-W.K.), Kangwon National University College of Medicine, Chuncheon 24289, Korea; Department of Endocrinology (S.H.A.), Inha University School of Medicine, Incheon 22332, Republic of Korea; Skeletal Diseases Genome Research Center and Department of Orthopedic Surgery (T.-H.K., S.-Y.K.), Kyungpook National University School of Medicine, Daegu 41944, Korea; and Department of Endocrinology and Metabolism (M.I.K.), The Catholic University of Korea, College of Medicine, Seoul 137-701, Korea
| | - Sang-Wook Kim
- Division of Endocrinology and Metabolism (S.H.L., H.-M.K., K.-H.L., B.-J.K., G.S.K., J.-M.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; Department of Internal Medicine (E.-H.C., S.-W.K.), Kangwon National University College of Medicine, Chuncheon 24289, Korea; Department of Endocrinology (S.H.A.), Inha University School of Medicine, Incheon 22332, Republic of Korea; Skeletal Diseases Genome Research Center and Department of Orthopedic Surgery (T.-H.K., S.-Y.K.), Kyungpook National University School of Medicine, Daegu 41944, Korea; and Department of Endocrinology and Metabolism (M.I.K.), The Catholic University of Korea, College of Medicine, Seoul 137-701, Korea
| | - Tae-Ho Kim
- Division of Endocrinology and Metabolism (S.H.L., H.-M.K., K.-H.L., B.-J.K., G.S.K., J.-M.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; Department of Internal Medicine (E.-H.C., S.-W.K.), Kangwon National University College of Medicine, Chuncheon 24289, Korea; Department of Endocrinology (S.H.A.), Inha University School of Medicine, Incheon 22332, Republic of Korea; Skeletal Diseases Genome Research Center and Department of Orthopedic Surgery (T.-H.K., S.-Y.K.), Kyungpook National University School of Medicine, Daegu 41944, Korea; and Department of Endocrinology and Metabolism (M.I.K.), The Catholic University of Korea, College of Medicine, Seoul 137-701, Korea
| | - Shin-Yoon Kim
- Division of Endocrinology and Metabolism (S.H.L., H.-M.K., K.-H.L., B.-J.K., G.S.K., J.-M.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; Department of Internal Medicine (E.-H.C., S.-W.K.), Kangwon National University College of Medicine, Chuncheon 24289, Korea; Department of Endocrinology (S.H.A.), Inha University School of Medicine, Incheon 22332, Republic of Korea; Skeletal Diseases Genome Research Center and Department of Orthopedic Surgery (T.-H.K., S.-Y.K.), Kyungpook National University School of Medicine, Daegu 41944, Korea; and Department of Endocrinology and Metabolism (M.I.K.), The Catholic University of Korea, College of Medicine, Seoul 137-701, Korea
| | - Ghi Su Kim
- Division of Endocrinology and Metabolism (S.H.L., H.-M.K., K.-H.L., B.-J.K., G.S.K., J.-M.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; Department of Internal Medicine (E.-H.C., S.-W.K.), Kangwon National University College of Medicine, Chuncheon 24289, Korea; Department of Endocrinology (S.H.A.), Inha University School of Medicine, Incheon 22332, Republic of Korea; Skeletal Diseases Genome Research Center and Department of Orthopedic Surgery (T.-H.K., S.-Y.K.), Kyungpook National University School of Medicine, Daegu 41944, Korea; and Department of Endocrinology and Metabolism (M.I.K.), The Catholic University of Korea, College of Medicine, Seoul 137-701, Korea
| | - Moo Il Kang
- Division of Endocrinology and Metabolism (S.H.L., H.-M.K., K.-H.L., B.-J.K., G.S.K., J.-M.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; Department of Internal Medicine (E.-H.C., S.-W.K.), Kangwon National University College of Medicine, Chuncheon 24289, Korea; Department of Endocrinology (S.H.A.), Inha University School of Medicine, Incheon 22332, Republic of Korea; Skeletal Diseases Genome Research Center and Department of Orthopedic Surgery (T.-H.K., S.-Y.K.), Kyungpook National University School of Medicine, Daegu 41944, Korea; and Department of Endocrinology and Metabolism (M.I.K.), The Catholic University of Korea, College of Medicine, Seoul 137-701, Korea
| | - Jung-Min Koh
- Division of Endocrinology and Metabolism (S.H.L., H.-M.K., K.-H.L., B.-J.K., G.S.K., J.-M.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; Department of Internal Medicine (E.-H.C., S.-W.K.), Kangwon National University College of Medicine, Chuncheon 24289, Korea; Department of Endocrinology (S.H.A.), Inha University School of Medicine, Incheon 22332, Republic of Korea; Skeletal Diseases Genome Research Center and Department of Orthopedic Surgery (T.-H.K., S.-Y.K.), Kyungpook National University School of Medicine, Daegu 41944, Korea; and Department of Endocrinology and Metabolism (M.I.K.), The Catholic University of Korea, College of Medicine, Seoul 137-701, Korea
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Reyhani Hamedani M, Kim SW, Kim DJ. SimCC: A novel method to consider both content and citations for computing similarity of scientific papers. Inf Sci (N Y) 2016. [DOI: 10.1016/j.ins.2015.12.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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219
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Kim JH, Choi HJ, Ku EJ, Hong AR, Kim KM, Kim SW, Cho NH, Shin CS. Regional body fat depots differently affect bone microarchitecture in postmenopausal Korean women. Osteoporos Int 2016; 27:1161-1168. [PMID: 26475286 DOI: 10.1007/s00198-015-3329-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 09/16/2015] [Indexed: 12/25/2022]
Abstract
SUMMARY In a prospective community-based cohort study, we investigated the relationship between trabecular bone score (TBS) and regional fat depots in 1474 Korean postmenopausal women. TBS was positively related with subcutaneous fat and negatively related with visceral fat. INTRODUCTION The effect of fat distribution (visceral/subcutaneous) on bone quality or microarchitecture has rarely been investigated due to measurement difficulty. We aimed to investigate the relationship between TBS reflecting bone microarchitecture and regional fat depots in Korean women. METHODS Cross-sectional data evaluation was made from subjects participating in an ongoing prospective community-based cohort study since 2001. A total of 1474 postmenopausal women in the Ansung cohort were analyzed. Regional body fat mass, bone mineral density (BMD) at the lumbar spine, and total hip and lumbar spine TBS were measured by dual energy X-ray absorptiometry (DXA). RESULTS In an age-adjusted partial correlation analysis, TBS was not associated with total fat mass, but negatively associated with trunk fat mass. However, TBS was positively related with leg (r = 0.102, P < 0.05) and gynoid fat mass (r = 0.086, P < 0.05) and negatively related with android fat mass (r = -0.106; P < 0.05). In linear regression models controlling age, BMI, and physical activity, android fat was inversely associated with TBS (β = -0.595, P < 0.001), whereas gynoid fat was positively associated with TBS (β = 0.216, P < 0.001). Lumbar spine and total hip BMDs revealed positive associations with total and all regional fat depots regardless of fat distribution. CONCLUSION Our findings suggest that relatively large visceral fat and small subcutaneous fat may have a detrimental effect on TBS, a bone microarchitecture index.
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Affiliation(s)
- J H Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - H J Choi
- Department of Anatomy, Seoul National University College of Medicine, Seoul, South Korea
| | - E J Ku
- Department of Internal Medicine, Chungbuk National University College of Medicine, Cheongju Si, South Korea
| | - A R Hong
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - K M Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - S W Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - N H Cho
- Department of Preventive Medicine, Ajou University School of Medicine, Suwon, South Korea.
| | - C S Shin
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea.
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Abstract
SUMMARY Lumbar spine trabecular bone score (TBS) was significantly decreased in active acromegaly patients. TBS may be useful to assess the skeletal fragility in acromegaly in which bone mineral density (BMD) is not sufficient to represent bone strength and explain the high incidence of fragility fractures in acromegaly patients. INTRODUCTION Although the data on BMD are controversial, patients with acromegaly have an increased risk of fragility fracture. We examined the lumbar spine TBS to explain the skeletal deterioration in acromegaly patients. METHODS We included 14 men and 19 women acromegaly patients who underwent dual-energy X-ray absorptiometry at the time of diagnosis from 2000 to 2014 at Seoul National University Hospital. Ninety-nine age-, sex- and body mass index-matched controls were recruited. Biochemical parameters, lumbar spine TBS, and BMD at all sites were measured. Gonadal status was evaluated at diagnosis. RESULTS Lumbar spine TBS was lower in acromegaly patients than in controls in both genders (1.345 ± 0.121 vs. 1.427 ± 0.087, P = 0.005 in men; 1.356 ± 0.082 vs. 1.431 ± 0.071, P = 0.001 in women). In contrast, BMD at all sites did not differ between the two groups. Hypogonadal acromegaly patients (men, n = 9; women, n = 12) had lower TBS values compared with controls both in men and women (all P < 0.05), although BMD at all sites were similar for the two groups. In eugonadal acromegaly patients, lumbar spine TBS was lower than in women controls only (P = 0.041). CONCLUSIONS Skeletal microarchitecture was deteriorated in acromegaly patients as assessed by TBS, which seems to be a consequence of growth hormone excess as well as hypogonadism, especially in women.
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Affiliation(s)
- A R Hong
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - J H Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - S W Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - S Y Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - C S Shin
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea.
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Affiliation(s)
- Gyoung Hwa Jeong
- Center of Molecular Science and Technology; Ajou University; Suwon 443-749 South Korea
| | - Seungmin Baek
- Department of Molecular Science and Technnology; Ajou University; Suwon 443-749 South Korea
| | - Seungyeol Lee
- Department of Molecular Science and Technnology; Ajou University; Suwon 443-749 South Korea
| | - Sang-Wook Kim
- Department of Molecular Science and Technnology; Ajou University; Suwon 443-749 South Korea
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Kim J, Han Y, Ahn JH, Kim SW, Lee SI, Lee KH, Ahn K. Airborne formaldehyde causes skin barrier dysfunction in atopic dermatitis. Br J Dermatol 2016; 175:357-63. [PMID: 27535603 DOI: 10.1111/bjd.14357] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/27/2015] [Indexed: 12/24/2022]
Abstract
BACKGROUND It remains to be elucidated whether exposure to air pollutants aggravates atopic dermatitis (AD). OBJECTIVES This study aimed to evaluate the effects of exposure to formaldehyde for 1 h and 2 h on skin barrier function in both the control and the AD groups. METHODS In 41 patients with AD and 34 healthy children, a provocation test was performed in which two different areas of normal-appearing skin on the forearm were stimulated with airborne formaldehyde at 500 μg m(-3) or placebo for 2 h. We measured transepidermal water loss (TEWL) and skin pH, and calculated the percentage change from baseline. RESULTS Exposure to formaldehyde increased TEWL in the control group [P < 0·001; median of difference 1·4; interquartile range (IQR) 0·9-1·6] and in the AD group (P < 0·001; median of difference 2·5; IQR 2·0-3·6). The percentage change of TEWL after formaldehyde exposure in the AD group was higher than in the control group (P < 0·001), whereas exposure to placebo showed no differences between both groups. The AD group also demonstrated a higher percentage increase in skin pH after exposure to formaldehyde than the control group (P < 0·001). CONCLUSIONS Short-term exposure to formaldehyde causes skin barrier dysfunction in both healthy children and children with AD, and this effect is more prominent in children with AD.
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Affiliation(s)
- J Kim
- Department of Pediatrics, Samsung Medical Centre, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, Korea.,Environmental Health Centre for Atopic Diseases, Samsung Medical Centre, Seoul, Korea
| | - Y Han
- Environmental Health Centre for Atopic Diseases, Samsung Medical Centre, Seoul, Korea
| | - J H Ahn
- Biostatistics Team, Samsung Biomedical Research Institute, Seoul, Korea
| | - S W Kim
- Biostatistics Team, Samsung Biomedical Research Institute, Seoul, Korea
| | - S I Lee
- Department of Pediatrics, Samsung Medical Centre, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, Korea
| | - K H Lee
- Korea Institute of Toxicology, Jeongeup, Jeollabuk-do, Korea
| | - K Ahn
- Department of Pediatrics, Samsung Medical Centre, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, Korea.,Environmental Health Centre for Atopic Diseases, Samsung Medical Centre, Seoul, Korea
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Park S, Ryu JM, Paik HJ, Yi HW, Bae SY, Lee SK, Kil WH, Kim SW, Lee JE, Nam SJ. Abstract P3-01-08: Sentinel lymph node biopsy alone after neoadjuvant chemotherapy in patients with cytologically proven node-positive breast cancer. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p3-01-08] [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
The purpose of this study was to identify the feasibility and accuracy of sentinel lymph node biopsy (SLNB) after neoadjuvant chemotherapy (NAC) in patients with axillary lymph node (ALN) metastasis at diagnosis.
Methods
This is a retrospective study of 332 patients who were diagnosed with invasive breast cancer and ALN metastasis and treated with NAC followed by curative surgery at Samsung Medical Center between January 2007 and December 2013. Patients were classified into five groups according to surgical procedure for the ALNs and pathologic results; group 1, patients with negative SLN status and no further dissection was performed; group 2, patients with negative SLN status undergoing further axillary lymph node dissection (ALND); group 3, patients with positive or undetected SLNs undergoing further ALND; group 4, patients without residual axillary metastasis undergoing complete ALND; and group 5, patients with pathologic nodal positive disease undergoing ALND.
Results
Sentinel lymph nodes identification rate after NAC was 99.1% and false negative rate was 24.1%. The median number of retrieved SLNs was 4 (range, 1–10). There was no difference in the overall survival among the groups (p=0.06). There was no significant difference in the disease-free survival rate between the SLNB only and complete ALN dissection groups who revealed a pathologic complete node response (79.6% versus 80.5%) and the rate of axillary recurrence demonstrated no significant differences among the groups. (p=0.225) There was a statistical difference of recurrence between group 1 versus 2, and group 1 versus 4 in hormone receptor-negative patients. (p=0.027)
Conclusion
SLNB after NAC in breast cancer patients with initial ALN metastasis may help identify downstaging to negative nodal status and thereby reduce the surgical morbidity by avoiding standard ALN dissection.
Citation Format: Park S, Ryu JM, Paik H-J, Yi HW, Bae SY, Lee SK, Kil WH, Kim SW, Lee JE, Nam SJ. Sentinel lymph node biopsy alone after neoadjuvant chemotherapy in patients with cytologically proven node-positive breast cancer. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P3-01-08.
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Affiliation(s)
- S Park
- Division of Breast and Endocrine Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - JM Ryu
- Division of Breast and Endocrine Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - H-J Paik
- Division of Breast and Endocrine Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - HW Yi
- Division of Breast and Endocrine Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - SY Bae
- Division of Breast and Endocrine Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - SK Lee
- Division of Breast and Endocrine Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - WH Kil
- Division of Breast and Endocrine Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - SW Kim
- Division of Breast and Endocrine Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - JE Lee
- Division of Breast and Endocrine Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - SJ Nam
- Division of Breast and Endocrine Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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Kim JY, Ahn T, Jung HH, Park K, Do IG, Kil WH, Kim SW, Lee JE, Nam SJ, Ahn JS, Park YH, Im YH. Abstract P2-08-19: Prognostication of HER family gene expression collaborate with ESR1 expression in patients with triple negative breast cancer. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p2-08-19] [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: Triple-negative breast cancer (TNBC) consists of heterogeneous sub-population. Although many investigators made an effort to categorize and classify TNBCs using genetic expressions, it is still needed to be defined for prognostication Traditionally, HER family genes have been known to contribute mammalian glands formation and breast cancer generation as well as ESR gene. Moreover, target agents for HER family genes have been already developed. Accordingly, we investigated the expression profiles of HER family genes with ESR in patients with TNBC to categorize into sub-types and determine the prognostic value of HER family genes in search of clinical implications.
Methods : We investigated the results of the nCounter expression assay (NanoString®) for ERBB1, ERBB2, ERBB3, ERBB4 and ESR1 using mRNA extract from paraffin-embedded tumor tissues in 203 patients diagnosed as TNBC. We used the results of nCounter expression assay using 84 TNBC tissues for validation and 52 breast cancer tissues diagnosed as other subtypes to control the expression assay results of these five genes.
Results: Two-hundred and three patients were diagnosed as TNBC from 2000 to 2004 and received adjuvant chemotherapy after curative surgery. Eighty-four TNBC patients for validation set and 52 patients diagnosed as other subtypes for control set were selected from the patients diagnosed as breast cancer from 2005 to 2010 and received curative surgery. Through analyzing 5 genes using the nCounter expression profiles from 203 TNBC tissues, we found that increased expression of ERBB4 was associated with poor prognosis by survival analysis (5 year disease recurrence free survival (DRFS), low vs. high expression [cut-off: median]: 90.1% vs. 80.2%; p =.002). This trend was still remained in validation set composed of TNBC (5 year DRFS, low vs. high expression [cut-off : median]: 61.1% vs. 44.0%), whereas was not observed in other subtypes of breast cancer (44.4% vs. 80.8%). The Kaplan-Meier estimates of the rates of 5 year DRFS in the subgroups classified according to the level of 5 genes expression showed that the group of higher expression of all HER family genes and lower expression of ESR1 gene had dismal prognosis rather than other groups in patients with TNBC (5 year DRFS, this group vs. others: 50.0% vs. 88.2%; p <.001). In a multivariate Cox regression model, ERBB4 expression identified as a useful marker for predicting long-term prognosis in patients with TNBC although other HER family genes and ESR1 expressions did not predict prognosis of TNBC with statistical significance (Table 1).
Impact of the m RNA expression levels of ERBB family and ESR1 on DRFS Hazard Ratio95% CIP-valueStage <.001I1.0NA IIA1.200.40-3.57 IIB3.751.20-11.74 IIIA5.461.55-9.24 IIIC59.9214.30-251.12 EGFR .167Low1.0NA High1.690.80-3.55 ERBB2 .057Low1.0NA High0.430.18-1.03 ERBB3 .061Low1.0NA High2.200.96-5.04 ERBB4 .016Low1.0NA High2.681.20-5.95 ESR1 .113Low1.0NA High0.570.28-1.15
Conclusions: The expression profile of HER family genes could be used as a prognostic marker in patients with TNBC. Further study is needed to identify the expression profiles of HER family gene as predictive marker of HER targeting treatment in patients with TNBC.
Citation Format: Kim J-Y, Ahn T, Jung HH, Park K, Do I-G, Kil WH, Kim SW, Lee JE, Nam SJ, Ahn JS, Park YH, Im Y-H. Prognostication of HER family gene expression collaborate with ESR1 expression in patients with triple negative breast cancer. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P2-08-19.
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Affiliation(s)
- J-Y Kim
- Samsung Medical Center, Seoul, Korea
| | - T Ahn
- Samsung Medical Center, Seoul, Korea
| | - HH Jung
- Samsung Medical Center, Seoul, Korea
| | - K Park
- Samsung Medical Center, Seoul, Korea
| | - I-G Do
- Samsung Medical Center, Seoul, Korea
| | - WH Kil
- Samsung Medical Center, Seoul, Korea
| | - SW Kim
- Samsung Medical Center, Seoul, Korea
| | - JE Lee
- Samsung Medical Center, Seoul, Korea
| | - SJ Nam
- Samsung Medical Center, Seoul, Korea
| | - JS Ahn
- Samsung Medical Center, Seoul, Korea
| | - YH Park
- Samsung Medical Center, Seoul, Korea
| | - Y-H Im
- Samsung Medical Center, Seoul, Korea
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Kim H, Cho DY, Choi DH, Jung GH, Shin I, Park W, Huh SJ, Nam SJ, Lee JE, Gil WH, Kim SW. Abstract P1-08-08: Heterozygous germline mutations in RAD50 among Korean patients with high-risk breast cancer negative for BRCA1/2 mutation. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p1-08-08] [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: The MRE11-RAD50-nibrin (MRN) complex participates in pathways of double-strand break induced DNA repair and cell cycle checkpoint control. RAD50 interacts with the MRE11 and NBS proteins, is involved in the maintenance of genomic integrity. The association of RAD50 mutation and breast cancer susceptibility has been reported in European patients. However, the impact of RAD50 mutation on a breast cancer predisposition among Koreans remains uncertain. In the current analysis, we evaluated the incidence of RAD50 mutations among Korean patients with non-BRCA1/2 high-risk breast cancer.
Materials and Methods: A total of 247 Korean patients with high-risk breast cancer who tested negative for BRCA1/2 mutation were enrolled. The criteria for high-risk breast cancer were as follows: having a family history of breast or ovarian cancer in any relative; diagnosed at age 40 years or younger; bilateral breast cancer; and male breast cancer. All participants were screened for BRCA1/2 mutations using fluorescent-conformation sensitive capillary electrophoresis (F-CSCE) and traditional sequencing. The entire RAD50 gene of each patient was sequenced using F-CSCE. In silico analyses of the RAD50 variants was performed using PolyPhen-2 and SIFT.
Results: There were two novel deleterious mutations in RAD50 (p.Q426X, p.E1271del). These mutations were found in two patients, including one with p.Q426X and the other with p.E1271del. Besides, five sequence variants in RAD50 were identified: four exonic variants (p.I118T, p.R486C, p.L1264F, and p.R1279H) and one intronic variant (c.1246-11T>C). Among the four missense variants, p.R486C and p.L1264F were variants predicted to be deleterious by in silico analyses.
Conclusions: We found protein-truncating mutations in RAD50 gene in a small proportion of Korean patients with high-risk breast cancer. The contribution of the mutation to the development of breast cancer should be clarified in further researches.
Citation Format: Kim H, Cho D-Y, Choi DH, Jung GH, Shin I, Park W, Huh SJ, Nam SJ, Lee JE, Gil WH, Kim SW. Heterozygous germline mutations in RAD50 among Korean patients with high-risk breast cancer negative for BRCA1/2 mutation. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P1-08-08.
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Affiliation(s)
- H Kim
- Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Republic of Korea; LabGenomics Clinical Research Institute, LabGenomics, Seongnam, Republic of Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - D-Y Cho
- Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Republic of Korea; LabGenomics Clinical Research Institute, LabGenomics, Seongnam, Republic of Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - DH Choi
- Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Republic of Korea; LabGenomics Clinical Research Institute, LabGenomics, Seongnam, Republic of Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - GH Jung
- Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Republic of Korea; LabGenomics Clinical Research Institute, LabGenomics, Seongnam, Republic of Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - I Shin
- Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Republic of Korea; LabGenomics Clinical Research Institute, LabGenomics, Seongnam, Republic of Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - W Park
- Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Republic of Korea; LabGenomics Clinical Research Institute, LabGenomics, Seongnam, Republic of Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - SJ Huh
- Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Republic of Korea; LabGenomics Clinical Research Institute, LabGenomics, Seongnam, Republic of Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - SJ Nam
- Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Republic of Korea; LabGenomics Clinical Research Institute, LabGenomics, Seongnam, Republic of Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - JE Lee
- Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Republic of Korea; LabGenomics Clinical Research Institute, LabGenomics, Seongnam, Republic of Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - WH Gil
- Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Republic of Korea; LabGenomics Clinical Research Institute, LabGenomics, Seongnam, Republic of Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - SW Kim
- Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Republic of Korea; LabGenomics Clinical Research Institute, LabGenomics, Seongnam, Republic of Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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Yi HW, Nam SJ, Kim SW, Lee JE, Lee SK, Bae SY, Park S, Paik HJ, Ryu JM. Abstract P1-11-01: Depression and anxiety after adjuvant ovarian function suppression in premenopausal breast cancer patients. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p1-11-01] [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
Purpose
The results of the Suppression of Ovarian Function Trial (SOFT) and the Tamoxifen and Exemestane Trial (TEXT) showed that ovarian function suppression (OFS) in premenopausal early breast cancer patients improves disease control. However, mood swings after OFS is one of the chief complaints to make patients stop undergoing endocrine therapy. Studies about complications of OFS in breast cancer patients are not established well. We designed this randomized controlled trial to evaluate psychological functioning of patients after undergoing adjuvant OFS by goserelin.
Patients and Methods
We randomly assigned 64 premenopausal women with hormone receptor positive early breast cancer to the tamoxifen or tamoxifen plus goserelin group for a period of 1 year. Participants were screened for depression and generalized anxiety disorder using Hamilton Rating Scale for Depression (HAMD), Hamilton Rating Scale for Anxiety (HAM-A), Anxiety Sensitivity Index (ASI) and Albany panic and phobia questionnaire (APPQ) at baseline, 6 months and 12 months. Brain-derived Neurotrophic Factor (BDNF) levels were measured, as well. The results were analyzed by using a linear mixed model and a generalized linear mixed model.
Results
Thirty two patients were distributed in each group, equally. Linear mixed-mixed model analyses revealed that, compared with HAM-A scores of each group at baseline, HAM-A scores at 12 months showed increments (p=0.0078). Among HAM-A questions, Questions for intellectual, sensory and autonomic status were scored significantly high at 12 months (p=0.0018, p=0.0132, p=0.0006). Platelet BDNF levels reported a statistically significant rise at 12 months (p=0.0006). There was no significant time-by-study group effect in all scales.
Conclusion
Compared with the patients without OFS, patients with Goserelin showed no difference in anxiety or depression scales. Thought the levels of anxiety of each group at 12 months were increased, they do not indicate medical interventions. Patients with increased levels of BDNF at 12 months are expected to have good recovery from anxious and depressive symptoms.
Citation Format: Yi HW, Nam SJ, Kim SW, Lee JE, Lee SK, Bae SY, Park S, Paik H-J, Ryu JM. Depression and anxiety after adjuvant ovarian function suppression in premenopausal breast cancer patients. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P1-11-01.
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Affiliation(s)
- HW Yi
- Samsung Medical Center, Seoul, Korea
| | - SJ Nam
- Samsung Medical Center, Seoul, Korea
| | - SW Kim
- Samsung Medical Center, Seoul, Korea
| | - JE Lee
- Samsung Medical Center, Seoul, Korea
| | - SK Lee
- Samsung Medical Center, Seoul, Korea
| | - SY Bae
- Samsung Medical Center, Seoul, Korea
| | - S Park
- Samsung Medical Center, Seoul, Korea
| | - H-J Paik
- Samsung Medical Center, Seoul, Korea
| | - JM Ryu
- Samsung Medical Center, Seoul, Korea
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Hyeon SH, Lee WS, Kim DI, Shin ES, Kim KS, Hong YJ, Lee SY, Won H, Kim TH, Kim SW. A Comparison of Intravascular Imaging Modalities for Detection of Stent Struts in Acute Coronary Syndrome. J Interv Cardiol 2016; 29:99-107. [PMID: 26864953 DOI: 10.1111/joic.12265] [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: 12/01/2022] Open
Abstract
BACKGROUND We used optical coherence tomography (OCT) and intravascular ultrasound (IVUS) to assess the struts of implanted stents in patients with acute coronary syndrome (ACS). METHODS A totle of 10,756 stent struts were analyzed with OCT in 42 patients of ACS. Of them, both of IVUS and OCT imaging were performed in 33 patients. Appearance of stent struts was classified as well apposed, buried, malapposed, and nondetectable, and the number of stent struts were counted by OCT and IVUS was compared. RESULTS Most of stent struts were well apposed (78.1%, 8,407/10,756). However, malapposed struts were 5.6% (607/10,756), and 14.1% (1,514/10,756) of stent struts were buried by thrombus. The nondetectable struts were 2.11% (228/10,756) in ACS. 94.7% (216/228) of nondetectable stent struts were associated with red thrombus, and plaque prolapse was in 5.3% (12/228). The number of stent struts counted by OCT were larger than that of IVUS. The mean number of stent struts at the proximal and distal stent edges were 24 ± 6.57 in OCT, the stent struts IVUS counted were 20 ± 4.18 (P < 0.0001). Although the frequency of malapposed struts were similar 4.6% (376/8,248) in OCT versus 4.8% (369/7,674) in IVUS (P = 0.788). Stent struts were often buried by thrombus in ACS 15.2% (1,252/8,248) in OCT versus 9.7% (747/7,674) in IVUS; P = 0.006. The nondetectable struts were fewer in IVUS than OCT 0.2% (16/7,674) in IVUS versus 2.2% (187/8,248) in OCT; P < 0.0001. CONCLUSION Stent struts are frequently buried and nondetectable due to thrombi burden in ACS patients. Adequate thrombus removal and proper selection of the imaging device is warranted in ACS.
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Affiliation(s)
- Seong Hyeop Hyeon
- Cardiovascular-Arrhythmia Center, Chung-Ang University Hospital, Seoul, Korea
| | - Wang Soo Lee
- Cardiovascular-Arrhythmia Center, Chung-Ang University Hospital, Seoul, Korea
| | - Doo Il Kim
- Cardiovascular Center, Inje University Paik Hospital, Busan & Goyang, Korea
| | - Eun Seok Shin
- Cardiovascular Center, Ulsan University Hospital, Ulsan, Korea
| | - Ki Seok Kim
- Cardiovascular Center, Jeju National University Hospital, Jeju, Korea
| | - Young Joon Hong
- Heart Center, Chonnam National University Hospital, Gwangju, Korea
| | - Sung Yun Lee
- Cardiovascular Center, Inje University Paik Hospital, Busan & Goyang, Korea
| | - Hoyoun Won
- Cardiovascular-Arrhythmia Center, Chung-Ang University Hospital, Seoul, Korea
| | - Tae Ho Kim
- Cardiovascular-Arrhythmia Center, Chung-Ang University Hospital, Seoul, Korea
| | - Sang-Wook Kim
- Cardiovascular-Arrhythmia Center, Chung-Ang University Hospital, Seoul, Korea
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Wang J, Li GR, Tan BE, Xiong X, Kong XF, Xiao DF, Xu LW, Wu MM, Huang B, Kim SW, Yin YL. Oral administration of putrescine and proline during the suckling period improves epithelial restitution after early weaning in piglets. J Anim Sci 2016; 93:1679-88. [PMID: 26020189 DOI: 10.2527/jas.2014-8230] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Polyamines are necessary for normal integrity and the restitution after injury of the gastrointestinal epithelium. The objective of this study was to investigate the effects of oral administration of putrescine and proline during the suckling period on epithelial restitution after early weaning in piglets. Eighteen neonatal piglets (Duroc × Landrace × Large Yorkshire) from 3 litters (6 piglets per litter) were assigned to 3 groups, representing oral administration with an equal volume of saline (control), putrescine (5 mg/kg BW), and proline (25 mg/kg BW) twice daily from d 1 to weaning at 14 d of age. Plasma and intestinal samples were obtained 3 d after weaning. The results showed that oral administration of putrescine or proline increased the final BW and ADG of piglets compared with the control (P < 0.05). Proline treatment decreased plasma D-lactate concentration but increased the villus height in the jejunum and ileum, as well as the percentage of proliferating cell nuclear antigen (PCNA) positive cells and alkaline phosphatase (AKP) activity in the jejunal mucosa (P < 0.05). The protein expressions for zonula occludens (ZO-1), occludin, and claudin-3 (P < 0.05) but not mRNA were increased in the jejunum of putrescine- and proline-treated piglets compared with those of control piglets. The voltage-gated K+ channel (Kv) 1.1 protein expression in the jejunum of piglets administrated with putrescine and the Kv1.5 mRNA and Kv1.1 protein levels in the ileum of piglets administrated with proline were greater than those in control piglets (P < 0.05). These findings indicate that polyamine or its precursor could improve mucosal proliferation, intestinal morphology, as well as tight junction and potassium channel protein expressions in early-weaned piglets, with implications for epithelial restitution and barrier function after stress injury.
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Kim YH, Hwang KT, Kim JT, Kim SW. What is the ideal interval between dressing changes during negative pressure wound therapy for open traumatic fractures? J Wound Care 2016; 24:536, 538-40, 542. [PMID: 26551646 DOI: 10.12968/jowc.2015.24.11.536] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Negative pressure wound therapy (NPWT) is effective in infection control during treatment of severe open fractures. However frequent dressing changes during NPWT are costly and cause patient discomfort. If the interval between dressing changes could be extended, these problems would be reduced. In this article we compare the outcomes of open IIIB fractures with 3-day versus 7-day intervals between dressing changes. METHOD Patients who sustained Gustilo IIIB open fractures were included. All underwent conventional orthopaedic fixation with delayed latissimus dorsi flap coverage. Group 1 had 3-day intervals between dressing changes and group 2 had 7-day intervals. The final outcomes in the two groups were analysed. RESULTS There were 38 patients in group 1 and 34 patients in group 2. Although the period between admission and final operation was similar in the two groups, the mean number of NPWT changes was 4.54 in 3 day in group 1 and 1.95 in group 2 (p<0.001). This led to a difference in NPWT-related costs; $341.26 in group 1 and $237.49 in group 2 (p<0.001). There was no difference in the frequency of complications such as infection or non-union of fractures. CONCLUSION NPWT is useful treatment option for open fractures, to bridge between initial debridement and final microsurgical tissue transfer. Considering patient comfort, the costs related to the NPWT, and the final flap results, a 7-day interval between changes of the NPWT is acceptable.
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Affiliation(s)
- Y H Kim
- Department of Plastic and Reconstructive Surgery, College of Medicine, Hanyang University, Seoul, Korea
| | - K T Hwang
- Department of Orthopedic Surgery, College of Medicine, Hanyang University, Seoul, Korea
| | - J T Kim
- Department of Plastic and Reconstructive Surgery, College of Medicine, Hanyang University, Seoul, Korea
| | - S W Kim
- Department of Plastic and Reconstructive Surgery, College of Medicine, Seoul National University, Seoul National University Hospital, Seoul, Korea
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Jais B, Rebours V, Malleo G, Salvia R, Fontana M, Maggino L, Bassi C, Manfredi R, Moran R, Lennon AM, Zaheer A, Wolfgang C, Hruban R, Marchegiani G, Fernández Del Castillo C, Brugge W, Ha Y, Kim MH, Oh D, Hirai I, Kimura W, Jang JY, Kim SW, Jung W, Kang H, Song SY, Kang CM, Lee WJ, Crippa S, Falconi M, Gomatos I, Neoptolemos J, Milanetto AC, Sperti C, Ricci C, Casadei R, Bissolati M, Balzano G, Frigerio I, Girelli R, Delhaye M, Bernier B, Wang H, Jang KT, Song DH, Huggett MT, Oppong KW, Pererva L, Kopchak KV, Del Chiaro M, Segersvard R, Lee LS, Conwell D, Osvaldt A, Campos V, Aguero Garcete G, Napoleon B, Matsumoto I, Shinzeki M, Bolado F, Fernandez JMU, Keane MG, Pereira SP, Acuna IA, Vaquero EC, Angiolini MR, Zerbi A, Tang J, Leong RW, Faccinetto A, Morana G, Petrone MC, Arcidiacono PG, Moon JH, Choi HJ, Gill RS, Pavey D, Ouaïssi M, Sastre B, Spandre M, De Angelis CG, Rios-Vives MA, Concepcion-Martin M, Ikeura T, Okazaki K, Frulloni L, Messina O, Lévy P. Serous cystic neoplasm of the pancreas: a multinational study of 2622 patients under the auspices of the International Association of Pancreatology and European Pancreatic Club (European Study Group on Cystic Tumors of the Pancreas). Gut 2016; 65:305-12. [PMID: 26045140 DOI: 10.1136/gutjnl-2015-309638] [Citation(s) in RCA: 173] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Accepted: 05/11/2015] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Serous cystic neoplasm (SCN) is a cystic neoplasm of the pancreas whose natural history is poorly known. The purpose of the study was to attempt to describe the natural history of SCN, including the specific mortality. DESIGN Retrospective multinational study including SCN diagnosed between 1990 and 2014. RESULTS 2622 patients were included. Seventy-four per cent were women, and median age at diagnosis was 58 years (16-99). Patients presented with non-specific abdominal pain (27%), pancreaticobiliary symptoms (9%), diabetes mellitus (5%), other symptoms (4%) and/or were asymptomatic (61%). Fifty-two per cent of patients were operated on during the first year after diagnosis (median size: 40 mm (2-200)), 9% had resection beyond 1 year of follow-up (3 years (1-20), size at diagnosis: 25 mm (4-140)) and 39% had no surgery (3.6 years (1-23), 25.5 mm (1-200)). Surgical indications were (not exclusive) uncertain diagnosis (60%), symptoms (23%), size increase (12%), large size (6%) and adjacent organ compression (5%). In patients followed beyond 1 year (n=1271), size increased in 37% (growth rate: 4 mm/year), was stable in 57% and decreased in 6%. Three serous cystadenocarcinomas were recorded. Postoperative mortality was 0.6% (n=10), and SCN's related mortality was 0.1% (n=1). CONCLUSIONS After a 3-year follow-up, clinical relevant symptoms occurred in a very small proportion of patients and size slowly increased in less than half. Surgical treatment should be proposed only for diagnosis remaining uncertain after complete workup, significant and related symptoms or exceptionally when exists concern with malignancy. This study supports an initial conservative management in the majority of patients with SCN. TRIAL REGISTRATION NUMBER IRB 00006477.
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Affiliation(s)
- B Jais
- Department of Gastroenterology and Pancreatology, Beaujon Hospital, AP-HP, Clichy, France
| | - V Rebours
- Department of Gastroenterology and Pancreatology, Beaujon Hospital, AP-HP, Clichy, France
| | - G Malleo
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - R Salvia
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - M Fontana
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - L Maggino
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - C Bassi
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - R Manfredi
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - R Moran
- Division of Gastroenterology and Hepatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Division of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - A M Lennon
- Division of Gastroenterology and Hepatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Division of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - A Zaheer
- Division of Gastroenterology and Hepatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Division of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - C Wolfgang
- Division of Gastroenterology and Hepatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Division of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - R Hruban
- Division of Gastroenterology and Hepatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Division of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - G Marchegiani
- Departments of Surgery and Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - C Fernández Del Castillo
- Departments of Surgery and Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - W Brugge
- Departments of Surgery and Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Y Ha
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - M H Kim
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - D Oh
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - I Hirai
- First Department of Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - W Kimura
- First Department of Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - J Y Jang
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - S W Kim
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - W Jung
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - H Kang
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - S Y Song
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - C M Kang
- Department of Surgery, Yonsei University College of Medicine, Pancreaticobiliary Cancer Clinic, Yonsei Cancer Center, Severance Hospital, Seoul, Korea
| | - W J Lee
- Department of Surgery, Yonsei University College of Medicine, Pancreaticobiliary Cancer Clinic, Yonsei Cancer Center, Severance Hospital, Seoul, Korea
| | - S Crippa
- Pancreatic Surgery Unit, Department of Surgery, Polytechnic University of Marche Region, Ancona-Torrette, Italy
| | - M Falconi
- Pancreatic Surgery Unit, Department of Surgery, Polytechnic University of Marche Region, Ancona-Torrette, Italy
| | - I Gomatos
- NIHR Pancreas Biomedical Research Unit, Department of Molecular and Clinical Cancer Medicine, Royal Liverpool University Hospital, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - J Neoptolemos
- NIHR Pancreas Biomedical Research Unit, Department of Molecular and Clinical Cancer Medicine, Royal Liverpool University Hospital, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - A C Milanetto
- Department of Surgery, Oncology and Gastroenterology, 3rd Surgical Clinic, University of Padua, Padua, Italy
| | - C Sperti
- Department of Surgery, Oncology and Gastroenterology, 3rd Surgical Clinic, University of Padua, Padua, Italy
| | - C Ricci
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, S. Orsola-Malpighi Hospital, Bologna, Italy
| | - R Casadei
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, S. Orsola-Malpighi Hospital, Bologna, Italy
| | - M Bissolati
- Pancreatic Surgery Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - G Balzano
- Pancreatic Surgery Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - I Frigerio
- Hepato-Pancreato-Biliary Unit, Pederzoli Hospital, Peschiera del Garda, Italy
| | - R Girelli
- Hepato-Pancreato-Biliary Unit, Pederzoli Hospital, Peschiera del Garda, Italy
| | - M Delhaye
- Department of Gastroenterology, Hepatopancreatology and GI Oncology, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - B Bernier
- Department of Gastroenterology, Hepatopancreatology and GI Oncology, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - H Wang
- Institute of Hepatopancreatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - K T Jang
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - D H Song
- Department of Pathology, Gyeongsang National University School of Medicine, Jinju, Korea
| | - M T Huggett
- Hepato-Pancreato-Biliary Unit, Freeman Hospital, Newcastle upon Tyne, UK
| | - K W Oppong
- Hepato-Pancreato-Biliary Unit, Freeman Hospital, Newcastle upon Tyne, UK
| | - L Pererva
- National Institute of Surgery and Transplantology named after Shalimov, Kiev, Ukraine
| | - K V Kopchak
- National Institute of Surgery and Transplantology named after Shalimov, Kiev, Ukraine
| | - M Del Chiaro
- Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet at Center for Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - R Segersvard
- Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet at Center for Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - L S Lee
- Division of Gastroenterology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - D Conwell
- Division of Gastroenterology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - A Osvaldt
- Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - V Campos
- Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - B Napoleon
- Hôpital Privé Mermoz, Gastroentérologie, Lyon, France
| | - I Matsumoto
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - M Shinzeki
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - F Bolado
- Gastroenterology Department, Hospital de Navarra, Pamplona, Spain
| | | | - M G Keane
- Department of Gastroenterology and Hepatology, University College Hospital, London, UK
| | - S P Pereira
- Department of Gastroenterology and Hepatology, University College Hospital, London, UK
| | - I Araujo Acuna
- Department of Gastroenterology, Hospital Clinic, CIBEREHD, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - E C Vaquero
- Department of Gastroenterology, Hospital Clinic, CIBEREHD, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - M R Angiolini
- Department of Pancreatic Surgery, Humanitas Research Hospital, Rozzano, Milan, Italy
| | - A Zerbi
- Department of Pancreatic Surgery, Humanitas Research Hospital, Rozzano, Milan, Italy
| | - J Tang
- Gastroenterology and Liver Services, Concord Hospital, Sydney, New South Wales, Australia
| | - R W Leong
- Gastroenterology and Liver Services, Concord Hospital, Sydney, New South Wales, Australia
| | - A Faccinetto
- Radiological Department, General Hospital Cá Foncello, Treviso, Italy
| | - G Morana
- Radiological Department, General Hospital Cá Foncello, Treviso, Italy
| | - M C Petrone
- Division of Gastroenterology and Gastrointestinal Endoscopy, San Raffaele Scientific Institute, Milan, Italy
| | - P G Arcidiacono
- Division of Gastroenterology and Gastrointestinal Endoscopy, San Raffaele Scientific Institute, Milan, Italy
| | - J H Moon
- Department of Internal Medicine, Digestive Disease Center and Research Institute, SoonChunHyang University School of Medicine, Bucheon, Korea
| | - H J Choi
- Department of Internal Medicine, Digestive Disease Center and Research Institute, SoonChunHyang University School of Medicine, Bucheon, Korea
| | - R S Gill
- Department of Gastroenterology, Bankstown-Lidcombe Hospital, Bankstown, New South Wales, Australia
| | - D Pavey
- Department of Gastroenterology, Bankstown-Lidcombe Hospital, Bankstown, New South Wales, Australia
| | - M Ouaïssi
- Department of Digestive Surgery, Timone Hospital, Marseille, France
| | - B Sastre
- Department of Digestive Surgery, Timone Hospital, Marseille, France
| | - M Spandre
- Gastrohepatology Department, San Giovanni Battista Molinette Hospital, University of Turin, Turin, Italy
| | - C G De Angelis
- Gastrohepatology Department, San Giovanni Battista Molinette Hospital, University of Turin, Turin, Italy
| | - M A Rios-Vives
- Gastroenterology Department, Hospital de la Santa Creu i Sant Pau, Institut de Reçerca-IIB Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - M Concepcion-Martin
- Gastroenterology Department, Hospital de la Santa Creu i Sant Pau, Institut de Reçerca-IIB Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - T Ikeura
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Osaka, Japan
| | - K Okazaki
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Osaka, Japan
| | - L Frulloni
- Department of Medicine, Pancreas Center, University of Verona, Verona, Italy
| | - O Messina
- Department of Medicine, Pancreas Center, University of Verona, Verona, Italy
| | - P Lévy
- Department of Gastroenterology and Pancreatology, Beaujon Hospital, AP-HP, Clichy, France
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Hwangbo Y, Kim JH, Kim SW, Park YJ, Park DJ, Kim SY, Shin CS, Cho NH. High-normal free thyroxine levels are associated with low trabecular bone scores in euthyroid postmenopausal women. Osteoporos Int 2016; 27:457-62. [PMID: 26252978 DOI: 10.1007/s00198-015-3270-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 07/26/2015] [Indexed: 11/24/2022]
Abstract
UNLABELLED Trabecular bone scores (TBS) have recently been developed as a diagnostic tool to assess bone texture. We studied thyroid status and TBS in a population-based cohort and demonstrated that high-normal thyroxine levels are associated with low TBS in healthy euthyroid postmenopausal women. INTRODUCTION Increased thyroid hormone levels affect bone mineral density (BMD) and, if untreated, increase the risk of fracture. However, the relationship between thyroid function and bone microarchitecture has not yet been established. Trabecular bone scores (TBS) are gray-level textural measurements of dual energy X-ray absorptiometry (DXA) images. The TBS has been proposed as an indirect index of bone microarchitecture. The goal of this study was to characterize the relationship between thyroid function and TBS in euthyroid men and postmenopausal euthyroid women. METHODS A total of 1376 euthyroid subjects (648 postmenopausal women and 728 men) were recruited from a community-based cohort in Korea. Free thyroxine (fT4) levels, thyroid stimulating hormone (TSH) levels, BMD, and TBS were measured and compared. RESULTS There was no significant relationship between either fT4 or TSH levels and BMD in men and women. Multiple linear regression analysis showed that high-normal fT4 levels were negatively correlated with TBS (β = -0.111; P = 0.002, after adjusting for both age and body mass index [BMI]) in postmenopausal women. In men, however, there was no significant correlation between fT4 levels and TBS. TSH levels were not significantly associated with TBS in either men or women. CONCLUSION Higher fT4 levels within the normal reference range are associated with deterioration of trabecular microarchitecture in healthy euthyroid postmenopausal women.
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Affiliation(s)
- Y Hwangbo
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - J H Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - S W Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - Y J Park
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - D J Park
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - S Y Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - C S Shin
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea.
| | - N H Cho
- Department of Preventive Medicine, School of Medicine, Ajou University, 5 Wonchon-Dong, Youngtong-Gu, Suwon, 443-721, South Korea.
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Woo SH, Lee WJ, Seol SH, Kim DH, Wee JH, Choi SP, Jeong WJ, Oh SH, Kyong YY, Kim SW. Physician and nurse knowledge about patient radiation exposure in the emergency department. Niger J Clin Pract 2016; 19:502-7. [DOI: 10.4103/1119-3077.183298] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Hwang IR, Choi YK, Lee WK, Kim JG, Lee IK, Kim SW, Park KG. Association between prolonged breastfeeding and bone mineral density and osteoporosis in postmenopausal women: KNHANES 2010-2011. Osteoporos Int 2016; 27:257-65. [PMID: 26373982 DOI: 10.1007/s00198-015-3292-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Accepted: 08/12/2015] [Indexed: 11/28/2022]
Abstract
UNLABELLED This study showed that a negative correlation between duration of breastfeeding and bone mineral density (BMD) in the lumbar spine and prolonged breastfeeding is an independent risk for osteoporosis in postmenopausal women. The present study suggests that postmenopausal women with a history of prolonged breastfeeding require more careful screening for osteoporosis. INTRODUCTION Several studies suggest that breastfeeding and childbirth lead to maternal calcium loss and a decline in BMD. While the association between breastfeeding and BMD immediately after weaning is well-established, the effects of breastfeeding on postmenopausal women have been controversial. The aim of this study was to examine the effects of breastfeeding on bone mineral density (BMD) and the prevalence of osteoporosis in postmenopausal women. METHODS The present study was a cross-sectional survey based on the Korea National Health and Nutrition Examination Survey (KNHANES) 2010 and 2011 data. The association between breastfeeding and BMD and osteoporosis was examined in 1222 postmenopausal women. RESULTS The duration of breastfeeding and BMD in the lumbar spine showed a negative correlation. The association between duration of breastfeeding and BMD remained significant after adjustment for reproductive factors and other confounding factors (P = 0.008). However, the number of deliveries and age at the time of delivery did not correlate with BMD at any site after adjustment. Moreover, the prevalence of osteoporosis in postmenopausal women with a history of prolonged breastfeeding was significantly higher than that in women with a short history of breastfeeding (≥37 months, OR = 3.292; 95 % CI 1.485-7.299). The prevalence of lumbar spine fracture showed a significant increasing trend with the increase in the duration of breastfeeding. CONCLUSION Prolonged breastfeeding was significantly associated with low BMD in the lumbar spine and higher prevalence of osteoporosis. However, the number of deliveries or age at the time of childbirth did not influence BMD.
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Affiliation(s)
- I R Hwang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, South Korea
| | - Y K Choi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, South Korea
| | - W K Lee
- Department of Preventive Medicine, Kyungpook National University School of Medicine, Daegu, South Korea
| | - J G Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, South Korea
| | - I K Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, South Korea
| | - S W Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, South Korea.
| | - K G Park
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, South Korea.
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Lee SC, Heo J, Ryu JW, Lee CL, Kim S, Tae JS, Rhee BO, Kim SW, Kwon OP. Pyrrolic molecular rotors acting as viscosity sensors with high fluorescence contrast. Chem Commun (Camb) 2016; 52:13695-13698. [DOI: 10.1039/c6cc06521j] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Pyrrolic viscosity sensors exhibit one order of magnitude higher fluorescence contrast compared to that of the conventional phenolic analogues due to the viscosity-sensitive rotation of the rotational pyrrole group.
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Affiliation(s)
- Seung-Chul Lee
- Department of Molecular Science and Technology
- Ajou University
- Suwon 443-749
- Korea
| | - Jeongyun Heo
- Center for Theragnosis
- Korea Institute of Science and Technology (KIST)
- Seongbuk-gu
- Korea
| | - Jong-Wan Ryu
- Department of Molecular Science and Technology
- Ajou University
- Suwon 443-749
- Korea
| | - Chang-Lyoul Lee
- Advanced Photonics Research Institute (APRI)
- Gwangju Institute of Science and Technology (GIST)
- Buk-gu
- Korea
| | - Sehoon Kim
- Center for Theragnosis
- Korea Institute of Science and Technology (KIST)
- Seongbuk-gu
- Korea
| | - Joon-Sung Tae
- Department of Mechanical Engineering
- Ajou University
- Suwon
- Korea
| | - Byung-Ohk Rhee
- Department of Mechanical Engineering
- Ajou University
- Suwon
- Korea
| | - Sang-Wook Kim
- Department of Molecular Science and Technology
- Ajou University
- Suwon 443-749
- Korea
| | - O-Pil Kwon
- Department of Molecular Science and Technology
- Ajou University
- Suwon 443-749
- Korea
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Affiliation(s)
- Seong-Chul Yeo
- Department of Otolaryngology, Gyeongsang National University, Jinju, Korea
| | - Hyun-Jin Cho
- Department of Otolaryngology, Gyeongsang National University, Jinju, Korea
- Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Sang-Wook Kim
- Department of Otolaryngology, Gyeongsang National University, Jinju, Korea
- Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Sea-Yuong Jeon
- Department of Otolaryngology, Gyeongsang National University, Jinju, Korea
- Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
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Park EJ, Kim SW, Yoon C, Kim Y, Kim JS. Disturbance of ion environment and immune regulation following biodistribution of magnetic iron oxide nanoparticles injected intravenously. Toxicol Lett 2015; 243:67-77. [PMID: 26687879 DOI: 10.1016/j.toxlet.2015.11.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 11/12/2015] [Accepted: 11/30/2015] [Indexed: 12/17/2022]
Abstract
Although it is expected that accumulation of metal oxide nanoparticles that can induce redox reaction in the biological system may influence ion homeostasis and immune regulation through generation of free radicals, the relationship is still unclear. In this study, mice received magnetic iron oxide nanoparticles (M-FeNPs, 2 and 4 mg/kg) a single via the tail vein, and their distribution in tissues was investigated over time (1, 4, and 13 weeks). In addition, we evaluated the effects on homeostasis of redox reaction-related elements, the ion environment and immune regulation. The iron level in tissues reached at the maximum on 4 weeks after injection and M-FeNPs the most distributed in the spleen at 13 weeks. Additionally, levels of redox reaction-related elements in tissues were notably altered since 1 week post-injection. While levels of K(+) and Na(+) in tissue tended to decrease with time, Ca(2+) levels reached to the maximum at 4 weeks post-injection. On 13 weeks post-injection, the increased percentages of neutrophils and eosinophils, the enhanced release of LDH, and the elevated secretion of IL-8 and IL-6 were clearly observed in the blood of M-FeNP-treated mice compared to the control. While expression of antigen presentation related-proteins and the maturation of dendritic cells were markedly inhibited following distribution of M-FeNPs, the expression of several chemokines, including CXCR2, CCR5, and CD123, was enhanced on the splenocytes of the treated groups. Taken together, we suggest that accumulation of M-FeNPs may induce adverse health effects by disturbing homeostasis of the immune regulation and ion environment.
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Affiliation(s)
- Eun-Jung Park
- Myunggok Eye Research Institute, Konyang University, Daejeon 302-718, South Korea.
| | - Sang-Wook Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, South Korea
| | - Cheolho Yoon
- Seoul Center, Korea Basic Science Institute, Seoul 126-16, South Korea
| | - Younghun Kim
- Department of Chemical Engineering, Kwangwoon University, Seoul 139-701, South Korea
| | - Jong Sung Kim
- Department of Community Health and Epidemiology, Faculty of Medicine, Dalhousie University, Halifax, Canada
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Joo YH, Kim SW, Cho HJ, Lee SJ, Bea HR, Jeon SY. The Use of Mobile Applications to Monitor Sleep Quality and Alertness during Shift Work in Nurses: A Preliminary Study. Sleep Med Res 2015. [DOI: 10.17241/smr.2015.6.2.66] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kim SW, Kim HC, Yang DM, Won KY. Gastrointestinal stromal tumours (GISTs) with a thousand faces: atypical manifestations and causes of misdiagnosis on imaging. Clin Radiol 2015; 71:e130-42. [PMID: 26646370 DOI: 10.1016/j.crad.2015.10.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 08/21/2015] [Accepted: 10/20/2015] [Indexed: 11/28/2022]
Abstract
Gastrointestinal stromal tumours (GISTs) can lead to emergency situations, such as gastrointestinal bleeding, intestinal obstruction, and tumoural rupture with haemoperitoneum or peritonitis. In addition, if a GIST grows exophytically to a large size, it is often misdiagnosed as a tumour arising from adjacent organs. Sometimes, the atypical appearance of GISTs on imaging causes diagnostic confusion. In this article, we illustrate a variety of GISTs with atypical presentations and also discuss the important diagnostic clues for differentiating GISTs from other lesions.
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Affiliation(s)
- S W Kim
- Department of Radiology, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, South Korea.
| | - H C Kim
- Department of Radiology, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, South Korea
| | - D M Yang
- Department of Radiology, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, South Korea
| | - K Y Won
- Department of Pathology, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, South Korea
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240
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Kim SW, Kim HC, Yang DM, Ryu JK, Won KY. Gallbladder carcinoma: causes of misdiagnosis at CT. Clin Radiol 2015; 71:e96-109. [PMID: 26602932 DOI: 10.1016/j.crad.2015.10.016] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 09/03/2015] [Accepted: 10/19/2015] [Indexed: 12/12/2022]
Abstract
Gallbladder carcinomas can present with varied imaging features on computed tomography. The three major imaging features include (1) focal or diffuse wall thickening with or without irregularity of the gallbladder; (2) polypoidal intraluminal mass; and (3) large mass obscuring and replacing the gallbladder, often extending to the liver. Patterns of wall thickening or polypoid growth are often confused with various benign gallbladder diseases due to overlap of imaging findings. Moreover, gallbladder carcinomas that coexist with benign gallbladder diseases make accurate preoperative diagnosis more difficult. Recently, high-resolution ultrasound (HRUS) has been regarded as a problem-solving tool for gallbladder diseases. In this article, we will illustrate various imaging presentations of gallbladder cancer, along with imaging pitfalls and recently updated HRUS findings.
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Affiliation(s)
- S W Kim
- Department of Radiology, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, South Korea.
| | - H C Kim
- Department of Radiology, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, South Korea
| | - D M Yang
- Department of Radiology, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, South Korea
| | - J K Ryu
- Department of Radiology, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, South Korea
| | - K Y Won
- Department of Pathology, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, South Korea
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241
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Hong SM, Park CW, Kim SW, Nam YJ, Yu JH, Shin JH, Yun CH, Im SH, Kim KT, Sung YC, Choi KY. NAMPT suppresses glucose deprivation-induced oxidative stress by increasing NADPH levels in breast cancer. Oncogene 2015; 35:3544-54. [PMID: 26568303 DOI: 10.1038/onc.2015.415] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 09/03/2015] [Accepted: 09/04/2015] [Indexed: 12/21/2022]
Abstract
Nicotinamide phosphoribosyltransferase (NAMPT) is a rate-limiting enzyme involved in NAD+ biosynthesis. Although NAMPT has emerged as a critical regulator of metabolic stress, the underlying mechanisms by which it regulates metabolic stress in cancer cells have not been completely elucidated. In this study, we determined that breast cancer cells expressing a high level of NAMPT were resistant to cell death induced by glucose depletion. Furthermore, NAMPT inhibition suppressed tumor growth in vivo in a xenograft model. Under glucose deprivation conditions, NAMPT inhibition was found to increase the mitochondrial reactive oxygen species (ROS) level, leading to cell death. This cell death was rescued by treatment with antioxidants or NAD+. Finally, we showed that NAMPT increased the pool of NAD+ that could be converted to NADPH through the pentose phosphate pathway and inhibited the depletion of reduced glutathione under glucose deprivation. Collectively, our results suggest a novel mechanism by which tumor cells protect themselves against glucose deprivation-induced oxidative stress by utilizing NAMPT to maintain NADPH levels.
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Affiliation(s)
- S M Hong
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, Korea
| | - C W Park
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, Korea.,Biokogen Inc. POSTECH Biotech Center #226, Pohang, Korea
| | - S W Kim
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, Korea
| | - Y J Nam
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, Korea
| | - J H Yu
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, Korea
| | - J H Shin
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, Korea
| | - C H Yun
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, Korea
| | - S-H Im
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, Korea.,Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, Korea
| | - K-T Kim
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, Korea
| | - Y C Sung
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, Korea
| | - K Y Choi
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, Korea
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242
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Lee SC, Choi EY, Lee SB, Kim SW, Kwon OP. Inside Back Cover: Unusual Transformation from a Solvent-Stabilized 1D Coordination Polymer to a Metal-Organic Framework (MOF)-Like Cross-Linked 3D Coordination Polymer (Chem. Eur. J. 44/2015). Chemistry 2015. [DOI: 10.1002/chem.201584403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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243
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Shen YB, Weaver AC, Kim SW. Effect of feed grade L-methionine on growth performance and gut health in nursery pigs compared with conventional DL-methionine. J Anim Sci 2015; 92:5530-9. [PMID: 25414105 DOI: 10.2527/jas.2014-7830] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Two experiments were conducted to test if supplementation of LMET has beneficial effects on growth performance and gut health in nursery pigs compared with DL-Met. In Exp. 1, 168 pigs in 56 pens were randomly allotted to 7 dietary treatments for 20 d, including a basal diet (BD; 55% of the NRC requirement for Met), the BD+0.048% L-Met or DL-Met (70% of the NRC requirement), the BD+0.096% L-Met or DL-Met (85% of the NRC requirement), and the BD+0.144% L-Met or DL-Met (100% of the NRC requirement). Body weight and feed disappearance were recorded every 5 d for computation of growth performance. In Exp. 2, 20 individually housed nursery pigs were randomly allotted to 2 dietary treatments for 20 d: DML (0.16% Met from the BD+0.145% supplemental DL-Met) or LMET (0.16% Met from the BD+0.145% supplemental L-Met). Both diets had Met meeting 95% of the NRC requirement. Duodenum samples from all pigs were collected at the end of the trial to evaluate morphology and redox status. In Exp. 1, during the entire 20 d, pigs fed diets supplemented with L-Met tended to have greater (P=0.087) ADG and reduced (P<0.01) plasma urea nitrogen (PUN) than pigs fed diets supplemented with DL-Met. The relative bioavailability (RBA) of L-Met to DL-Met for ADG and G:F was 143.8 and 122.7%, respectively. In Exp. 2, pigs fed a diet supplemented with L-Met had duodenum tissue with greater (P<0.05) concentrations of glutathione (GSH) and greater villus height and width as well as lower (P<0.05) concentrations of protein carbonyl compared with pigs fed DL-Met. Overall, compared with DL-Met, the use of L-Met as a source of supplemental Met in nursery pig diets enhanced duodenum villus development in association with reduced oxidative stress and improved GSH. The beneficial effects of supplementing L-Met compared to DL-Met in gut of nursery pigs resulted in a potential enhancement of ADG and reduction of PUN.
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Affiliation(s)
- Y B Shen
- Department of Animal Science, North Carolina State University, Raleigh 27695
| | - A C Weaver
- Department of Animal Science, North Carolina State University, Raleigh 27695
| | - S W Kim
- Department of Animal Science, North Carolina State University, Raleigh 27695
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244
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Chang DY, Joo YH, Kim SJ, Kim JH, Jung MH, Kim DW, Jeon SY, Kim SW. Therapeutic effects of intranasal cyclosporine for eosinophilic rhinosinusitis with nasal polyps in a mouse model. Am J Rhinol Allergy 2015; 29:e29-32. [PMID: 25590314 DOI: 10.2500/ajra.2015.29.4152] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Chronic rhinosinusitis (CRS) with nasal polyps (CRSwNP) is a principally type 2 T helper cell (Th2)-mediated inflammatory disease. Systemic corticosteroids currently represent the most effective treatment for CRSwNP, but their long-term use is constrained due to their detrimental side effects. Long-term use of topical steroids is safe, but their efficacy is often limited. Topical cyclosporine has proven to be safe and effective for Th2-mediated diseases such as allergic conjunctivitis. OBJECTIVE It was hypothesized that topical cyclosporine would be an effective novel drug for the treatment of CRSwNP; its therapeutic efficacy was assessed using a previously established mouse model. METHODS After induction of eosinophilic CRSwNP in four-week-old BALB/c mice according to previous protocols, the therapeutic effects of intranasal cyclosporine were evaluated and compared with those of triamcinolone acetonide (TAC). Histopathologic changes were evaluated using hematoxylin and eosin for polyp formation and Sirius red staining for eosinophilic infiltration. The production of cytokines in sinonasal tissues, including tumor necrosis factor (TNF), interleukin (IL)-2, interferon (IFN)-γ, IL-4, IL-5, IL-13, and IL-17A, was measured using a cytometric bead array. RESULTS The number of polyp-like lesions was reduced significantly only by systemic TAC, but the degree of eosinophilic infiltration was decreased significantly by topical cyclosporine, the potency of which was similar to that of topical or systemic TAC. Except for IFN-γ, the majority of measured cytokines were reduced significantly by topical cyclosporine, although their effects on IL-2 and IL-13 were less potent than those of systemic TAC. CONCLUSION Topical cyclosporine might be an effective drug for the management of CRSwNP.
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Affiliation(s)
- Dong-Yeop Chang
- Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea
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245
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Park HJ, Kim K, Paik JH, Chie EK, Kim S, Jang JY, Kim SW, Han SW, Oh DY, Im SA, Kim TY, Bang YJ, Ha SW. Is c-Met oncoprotein expression an adverse prognosticator in extrahepatic bile duct cancer treated with curative resection followed by adjuvant chemoradiotherapy? Clin Transl Oncol 2015; 18:625-31. [PMID: 26459257 DOI: 10.1007/s12094-015-1409-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 09/07/2015] [Indexed: 12/28/2022]
Abstract
PURPOSE To analyze the expression of c-Met, and to investigate correlations between the expression of c-Met, clinicopathologic variables, and survival in patients undergoing curative surgery followed by adjuvant chemoradiotherapy for extrahepatic bile duct (EHBD) cancer. METHODS Ninety EHBD cancer patients who underwent curative resection followed by adjuvant chemoradiotherapy were enrolled. Expression of c-Met was assessed with immunohistochemical staining on tissue microarray. The correlation between clinicopathologic variables and survival outcomes was evaluated using Kaplan-Meier method and Cox proportional hazard model. RESULTS On univariate analysis, 66 patients (76.7 %) showed c-Met expression. c-Met expression had a significant impact on 5-year overall survival (OS) (43.0 % in c-Met(+) vs. 25.0 % in c-Met(-), p = 0.0324), but not on loco-regional relapse-free survival or distant metastasis-free survival (DMFS). However, on multivariate analysis incorporating tumor location and nodal involvement, survival difference was not maintained (p = 0.2940). Tumor location was the only independent prognostic factor predicting OS (p = 0.0089). Hilar location tumors, nodal involvement, and poorly differentiated tumors were all identified as independent prognostic factors predicting inferior DMFS (p = 0.0030, 0.0013, and 0.0037, respectively). CONCLUSIONS This study showed that c-Met expression was not associated with survival outcomes in EHBD cancer patients undergoing curative resection followed by adjuvant chemoradiotherapy. Further studies are needed to fully elucidate the prognostic value of c-Met expression in these patients.
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Affiliation(s)
- H J Park
- Department of Radiation Oncology, Hanyang University Hospital, Seoul, Republic of Korea
| | - K Kim
- Department of Radiation Oncology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, Republic of Korea.
| | - J H Paik
- Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - E K Chie
- Department of Radiation Oncology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, Republic of Korea
- Institute of Radiation Medicine, Medical Research Center, Seoul National University, Seoul, Republic of Korea
| | - S Kim
- Department of Radiation Oncology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, Republic of Korea
| | - J-Y Jang
- Department of Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S W Kim
- Department of Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S-W Han
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - D-Y Oh
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S-A Im
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - T-Y Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Y-J Bang
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S W Ha
- Department of Radiation Oncology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, Republic of Korea
- Institute of Radiation Medicine, Medical Research Center, Seoul National University, Seoul, Republic of Korea
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246
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Kao SS, Kim SW, Horwood CM, Hakendorf P, Li JY, Thompson CH. Variability in inpatient serum creatinine: its impact upon short- and long-term mortality. QJM 2015; 108:781-7. [PMID: 25636343 DOI: 10.1093/qjmed/hcv020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [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: 12/09/2014] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Long-staying medical inpatients carry a significant burden of acute and chronic illness. Prediction of their in-hospital and longer-term mortality risk is important. AIM The aim of this study was to determine to what extent creatinine variability predicts in-hospital and 1-year mortality in inpatients. DESIGN Retrospective cohort analysis. METHODS Patients were included if aged 18 years or older and if admitted for 7 days or longer. The main outcome variables were mortality in hospital and after discharge. RESULTS Increasing age, the presence of heart failure and a reduced estimated glomerular filtration rate (eGFR) on admission (<60 ml/min/1.73 m(2)) all associated with death risk (both in hospital and within a year of discharge). The creatinine change was related to mortality risk for the patient whilst in hospital and within 1 year after discharge independently of these other factors. The threshold of creatinine change, above which the in-hospital mortality rose significantly was 25 µmol/l (P < 0.001). A creatinine change of >10 µmol/l predicted significantly higher mortality within a year of discharge (P < 0.001). Every 5 µmol/l change in creatinine was associated with an in-hospital mortality increase of 3% (P < 0.001) and a 1-year mortality increase of 1% (P < 0.007). CONCLUSIONS Patients with a creatinine rise or fall of >10 µmol/l during admission are at higher risk of death after discharge than those with more stable creatinine. These patients therefore merit further attention that might include more focused nutritional assessment, cardiovascular risk factor management or advance care planning.
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Affiliation(s)
- S S Kao
- From the Royal Adelaide Hospital, Adelaide, South Australia
| | - S W Kim
- Flinders Centre for Epidemiology and Biostatistics, School of Medicine, Flinders University, Adelaide, South Australia
| | | | | | - J Y Li
- Department of General Medicine, Flinders Medical Centre, Adelaide, South Australia and
| | - C H Thompson
- School of Medicine, University of Adelaide, Adelaide, South Australia
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Lee SY, Hur SH, Lee SG, Kim SW, Shin DH, Kim JS, Kim BK, Ko YG, Choi D, Jang Y, Hong MK. Optical coherence tomographic observation of in-stent neoatherosclerosis in lesions with more than 50% neointimal area stenosis after second-generation drug-eluting stent implantation. Circ Cardiovasc Interv 2015; 8:e001878. [PMID: 25613674 DOI: 10.1161/circinterventions.114.001878] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Despite the enhanced properties of the second-generation drug-eluting stent (DES), its association with neoatherosclerosis has not been sufficiently evaluated. Therefore, we sought to evaluate and compare neoatherosclerosis in second-generation DESs to first-generation DESs. METHODS AND RESULTS A total of 212 DES-treated patients with >50% percent neointimal cross-sectional area stenosis were retrospectively enrolled from the Korean multicenter optical coherence tomography (OCT) registry. Within this population, 111 patients had a second-generation DES (40 zotarolimus, 36 everolimus, and 35 biolimus) and 101 patients had a first-generation (65 sirolimus and 36 paclitaxel) DES. Neoatherosclerosis on OCT was defined as neointima formation with the presence of lipids or calcification. OCT-determined neoatherosclerosis was identified in 27.4% (58/212) of all DES-treated lesions. The frequency of neoatherosclerosis increased with the stent age. Stent age was shorter in the second-generation DES group (12.4 months versus 55.4 months, P<0.001), and neoatherosclerosis was less frequently observed in that group (10.8% versus 45.5%, P<0.001). However, after adjusting for cardiovascular risk factors, chronic kidney disease (odds ratio, 4.113; 95% confidence interval, 1.086-15.575; P=0.037), >70 mg/dL of low-density cholesterol at follow-up OCT (odds ratio, 2.532; 95% confidence interval, 1.054-6.084; P=0.038), and stent age (odds ratio, 1.710; 95% confidence interval, 1.403-2.084; P<0.001) were all independent predictors for neoatherosclerosis, whereas the type of DES (first- versus second-generation) was not. Patients with neoatherosclerosis showed a higher rate of acute coronary syndrome at follow-up OCT (19.0% versus 3.9%, respectively, P=0.001). CONCLUSIONS The second-generation DES is not more protective against neoatherosclerosis compared with the first-generation DES.
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Affiliation(s)
- Seung-Yul Lee
- From the Department of Cardiology, International St. Mary's Hospital, Incheon, Korea (S.-Y.L.); Department of Cardiology, Keimyung University College of Medicine, Daegu, Korea (S.-H.H.); Department of Cardiology, Ulsan University College of Medicine, Ulsan, Korea (S.-G.L.); Department of Cardiology, Chung-Ang University Medical Center, Seoul, Korea (S.-W.K.); Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Korea (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.); and Cardiovascular Institute (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.) and Severance Biomedical Science Institute (Y.J., M.-K.H.), Yonsei University College of Medicine, Seoul, Korea
| | - Seung-Ho Hur
- From the Department of Cardiology, International St. Mary's Hospital, Incheon, Korea (S.-Y.L.); Department of Cardiology, Keimyung University College of Medicine, Daegu, Korea (S.-H.H.); Department of Cardiology, Ulsan University College of Medicine, Ulsan, Korea (S.-G.L.); Department of Cardiology, Chung-Ang University Medical Center, Seoul, Korea (S.-W.K.); Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Korea (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.); and Cardiovascular Institute (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.) and Severance Biomedical Science Institute (Y.J., M.-K.H.), Yonsei University College of Medicine, Seoul, Korea
| | - Sang-Gon Lee
- From the Department of Cardiology, International St. Mary's Hospital, Incheon, Korea (S.-Y.L.); Department of Cardiology, Keimyung University College of Medicine, Daegu, Korea (S.-H.H.); Department of Cardiology, Ulsan University College of Medicine, Ulsan, Korea (S.-G.L.); Department of Cardiology, Chung-Ang University Medical Center, Seoul, Korea (S.-W.K.); Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Korea (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.); and Cardiovascular Institute (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.) and Severance Biomedical Science Institute (Y.J., M.-K.H.), Yonsei University College of Medicine, Seoul, Korea
| | - Sang-Wook Kim
- From the Department of Cardiology, International St. Mary's Hospital, Incheon, Korea (S.-Y.L.); Department of Cardiology, Keimyung University College of Medicine, Daegu, Korea (S.-H.H.); Department of Cardiology, Ulsan University College of Medicine, Ulsan, Korea (S.-G.L.); Department of Cardiology, Chung-Ang University Medical Center, Seoul, Korea (S.-W.K.); Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Korea (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.); and Cardiovascular Institute (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.) and Severance Biomedical Science Institute (Y.J., M.-K.H.), Yonsei University College of Medicine, Seoul, Korea
| | - Dong-Ho Shin
- From the Department of Cardiology, International St. Mary's Hospital, Incheon, Korea (S.-Y.L.); Department of Cardiology, Keimyung University College of Medicine, Daegu, Korea (S.-H.H.); Department of Cardiology, Ulsan University College of Medicine, Ulsan, Korea (S.-G.L.); Department of Cardiology, Chung-Ang University Medical Center, Seoul, Korea (S.-W.K.); Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Korea (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.); and Cardiovascular Institute (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.) and Severance Biomedical Science Institute (Y.J., M.-K.H.), Yonsei University College of Medicine, Seoul, Korea
| | - Jung-Sun Kim
- From the Department of Cardiology, International St. Mary's Hospital, Incheon, Korea (S.-Y.L.); Department of Cardiology, Keimyung University College of Medicine, Daegu, Korea (S.-H.H.); Department of Cardiology, Ulsan University College of Medicine, Ulsan, Korea (S.-G.L.); Department of Cardiology, Chung-Ang University Medical Center, Seoul, Korea (S.-W.K.); Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Korea (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.); and Cardiovascular Institute (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.) and Severance Biomedical Science Institute (Y.J., M.-K.H.), Yonsei University College of Medicine, Seoul, Korea
| | - Byeong-Keuk Kim
- From the Department of Cardiology, International St. Mary's Hospital, Incheon, Korea (S.-Y.L.); Department of Cardiology, Keimyung University College of Medicine, Daegu, Korea (S.-H.H.); Department of Cardiology, Ulsan University College of Medicine, Ulsan, Korea (S.-G.L.); Department of Cardiology, Chung-Ang University Medical Center, Seoul, Korea (S.-W.K.); Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Korea (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.); and Cardiovascular Institute (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.) and Severance Biomedical Science Institute (Y.J., M.-K.H.), Yonsei University College of Medicine, Seoul, Korea
| | - Young-Guk Ko
- From the Department of Cardiology, International St. Mary's Hospital, Incheon, Korea (S.-Y.L.); Department of Cardiology, Keimyung University College of Medicine, Daegu, Korea (S.-H.H.); Department of Cardiology, Ulsan University College of Medicine, Ulsan, Korea (S.-G.L.); Department of Cardiology, Chung-Ang University Medical Center, Seoul, Korea (S.-W.K.); Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Korea (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.); and Cardiovascular Institute (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.) and Severance Biomedical Science Institute (Y.J., M.-K.H.), Yonsei University College of Medicine, Seoul, Korea
| | - Donghoon Choi
- From the Department of Cardiology, International St. Mary's Hospital, Incheon, Korea (S.-Y.L.); Department of Cardiology, Keimyung University College of Medicine, Daegu, Korea (S.-H.H.); Department of Cardiology, Ulsan University College of Medicine, Ulsan, Korea (S.-G.L.); Department of Cardiology, Chung-Ang University Medical Center, Seoul, Korea (S.-W.K.); Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Korea (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.); and Cardiovascular Institute (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.) and Severance Biomedical Science Institute (Y.J., M.-K.H.), Yonsei University College of Medicine, Seoul, Korea
| | - Yangsoo Jang
- From the Department of Cardiology, International St. Mary's Hospital, Incheon, Korea (S.-Y.L.); Department of Cardiology, Keimyung University College of Medicine, Daegu, Korea (S.-H.H.); Department of Cardiology, Ulsan University College of Medicine, Ulsan, Korea (S.-G.L.); Department of Cardiology, Chung-Ang University Medical Center, Seoul, Korea (S.-W.K.); Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Korea (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.); and Cardiovascular Institute (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.) and Severance Biomedical Science Institute (Y.J., M.-K.H.), Yonsei University College of Medicine, Seoul, Korea
| | - Myeong-Ki Hong
- From the Department of Cardiology, International St. Mary's Hospital, Incheon, Korea (S.-Y.L.); Department of Cardiology, Keimyung University College of Medicine, Daegu, Korea (S.-H.H.); Department of Cardiology, Ulsan University College of Medicine, Ulsan, Korea (S.-G.L.); Department of Cardiology, Chung-Ang University Medical Center, Seoul, Korea (S.-W.K.); Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Korea (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.); and Cardiovascular Institute (D.-H.S., J.-S.K., B.-K.K., Y.-G.K., D.C., Y.J., M.-K.H.) and Severance Biomedical Science Institute (Y.J., M.-K.H.), Yonsei University College of Medicine, Seoul, Korea.
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Baek HI, Kim SW, Ha KC, Kim HM, So BO, Choi EK, Park EO, Jeon BJ, Park BH, Nam TJ, Kim IH, Chae SW. Effectiveness of Hizikia fusiformis Extract on Erosive Gastritis: A 4-week, Randomized, Double-blind and Placebo-controlled Trial. INT J PHARMACOL 2015. [DOI: 10.3923/ijp.2015.719.725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Lee SC, Choi EY, Lee SB, Kim SW, Kwon OP. Unusual Transformation from a Solvent-Stabilized 1D Coordination Polymer to a Metal-Organic Framework (MOF)-Like Cross-Linked 3D Coordination Polymer. Chemistry 2015; 21:15570-4. [DOI: 10.1002/chem.201502128] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Indexed: 11/10/2022]
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Kim YA, Kim KM, Lim S, Choi SH, Moon JH, Kim JH, Kim SW, Jang HC, Shin CS. Favorable effect of dietary vitamin C on bone mineral density in postmenopausal women (KNHANES IV, 2009): discrepancies regarding skeletal sites, age, and vitamin D status. Osteoporos Int 2015; 26:2329-37. [PMID: 25906241 DOI: 10.1007/s00198-015-3138-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [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: 10/27/2014] [Accepted: 04/07/2015] [Indexed: 01/30/2023]
Abstract
UNLABELLED Dietary vitamin C intake showed significant positive associations with BMD in postmenopausal women, especially with vitamin D deficiency. INTRODUCTION Although there is a positive role of vitamin C in osteoblastogenesis, debate remains about the contribution of vitamin C to bone mineral density (BMD) in humans. METHODS Data were derived from the Fourth Korean National Health and Nutrition Examination Survey. Dietary information was assessed using a 24-h dietary recall questionnaire. BMD was measured by dual-energy X-ray absorptiometry at the lumbar and hip. RESULTS A total of 1,196 postmenopausal women aged 50 years and older were stratified into tertiles by daily dietary vitamin C intake. After adjusting for traditional confounders, dietary vitamin C intake tertile was significantly positively associated with BMD at all sites (R = 0.513 for lumbar spine (LS) and R = 0.657 for femoral neck (FN), P < 0.05 for each). The subjects with osteoporosis had significantly lower dietary vitamin C intake than did subjects without osteoporosis (74.4 ± 66.2 vs 94.1 ± 78.6 mg/day for LS and 65.5 ± 56.6 vs 94.3 ± 79.2 mg/day for FN, respectively, P < 0.001). The multiple-adjusted odds ratio for osteoporosis for dietary vitamin C <100 mg/day was 1.790 (95 % CI 1.333-2.405, P < 0.001). However, the significant association between vitamin C intake and BMD was only observed in subjects with vitamin D deficiency and aged 50-59 years or >70 years. CONCLUSION Dietary vitamin C intake was positively associated with BMD in postmenopausal women, and inadequate vitamin C intake could increase the risk of osteoporosis.
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Affiliation(s)
- Y A Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
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