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Oppedisano F, Macrì R, Gliozzi M, Musolino V, Carresi C, Maiuolo J, Bosco F, Nucera S, Caterina Zito M, Guarnieri L, Scarano F, Nicita C, Coppoletta AR, Ruga S, Scicchitano M, Mollace R, Palma E, Mollace V. The Anti-Inflammatory and Antioxidant Properties of n-3 PUFAs: Their Role in Cardiovascular Protection. Biomedicines 2020; 8:biomedicines8090306. [PMID: 32854210 PMCID: PMC7554783 DOI: 10.3390/biomedicines8090306] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/22/2020] [Accepted: 08/24/2020] [Indexed: 12/15/2022] Open
Abstract
Polyunsaturated fatty acids (n-3 PUFAs) are long-chain polyunsaturated fatty acids with 18, 20 or 22 carbon atoms, which have been found able to counteract cardiovascular diseases. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), in particular, have been found to produce both vaso- and cardio-protective response via modulation of membrane phospholipids thereby improving cardiac mitochondrial functions and energy production. However, antioxidant properties of n-3 PUFAs, along with their anti-inflammatory effect in both blood vessels and cardiac cells, seem to exert beneficial effects in cardiovascular impairment. In fact, dietary supplementation with n-3 PUFAs has been demonstrated to reduce oxidative stress-related mitochondrial dysfunction and endothelial cell apoptosis, an effect occurring via an increased activity of endogenous antioxidant enzymes. On the other hand, n-3 PUFAs have been shown to counteract the release of pro-inflammatory cytokines in both vascular tissues and in the myocardium, thereby restoring vascular reactivity and myocardial performance. Here we summarize the molecular mechanisms underlying the anti-oxidant and anti-inflammatory effect of n-3 PUFAs in vascular and cardiac tissues and their implication in the prevention and treatment of cardiovascular disease.
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Affiliation(s)
- Francesca Oppedisano
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
| | - Roberta Macrì
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
| | - Micaela Gliozzi
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
| | - Vincenzo Musolino
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
| | - Cristina Carresi
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
| | - Jessica Maiuolo
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
| | - Francesca Bosco
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
| | - Saverio Nucera
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
| | - Maria Caterina Zito
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
| | - Lorenza Guarnieri
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
| | - Federica Scarano
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
| | - Caterina Nicita
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
| | - Anna Rita Coppoletta
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
| | - Stefano Ruga
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
| | - Miriam Scicchitano
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
| | - Rocco Mollace
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
- Division of Cardiology, University Hospital Policlinico Tor Vergata, 00133 Rome, Italy
| | - Ernesto Palma
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
| | - Vincenzo Mollace
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (F.O.); (R.M.); (M.G.); (V.M.); (C.C.); (J.M.); (F.B.); (S.N.); (M.C.Z.); (L.G.); (F.S.); (C.N.); (A.R.C.); (S.R.); (M.S.); (R.M.); (E.P.)
- IRCCS San Raffaele Pisana, 00163 Roma, Italy
- Correspondence:
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Lee HW, Lee SM, Lee MH, Son YK, Kim SE, An WS. Effect of Omega-3 Fatty Acid on STAMP2 Expression in the Heart and Kidney of 5/6 Nephrectomy Rat Model. Mar Drugs 2018; 16:md16110398. [PMID: 30360481 PMCID: PMC6267584 DOI: 10.3390/md16110398] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 10/22/2018] [Accepted: 10/22/2018] [Indexed: 12/18/2022] Open
Abstract
Six transmembrane protein of prostate 2 (STAMP2) is a critical modulator of inflammation and metabolism in adipose tissue. There are no data on the expression of STAMP2 in chronic kidney disease, which is an inflammatory disease related to metabolic disorders. This study aimed to investigate STAMP2 expression in the kidney and heart in 5/6 nephrectomy (Nx) rats, and the effect of omega-3 fatty acid (FA) on STAMP2 expression. Male Sprague Dawley rats were divided into three groups: sham control (0.9% saline), 5/6 Nx (0.9% saline), and 5/6 Nx treated with omega-3 FA (300 mg per kg per day by gastric gavage). The expression of STAMP2 in the kidney and heart were examined by western blotting. Serum creatinine levels were higher in 5/6 Nx rats than in controls. Compared with sham controls, the expression of IκB, NF-κB, NOX4, SREBP-1, and LXR were upregulated and STAMP2 and phosphorylated-AMPK expression were downregulated in the kidney and heart of 5/6 Nx rats. Omega-3 FA supplementation prevented these changes in biomarkers related to inflammation and metabolic lipid disorders. Omega 3-FA supplementation induced the upregulation of STAMP2 protein in 5/6 Nx rats, which was associated with an attenuation of inflammation- and metabolic disease-related markers.
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Affiliation(s)
- Hye Won Lee
- Department of Internal Medicine, Dong-A University, Busan 49201, Korea.
| | - Su Mi Lee
- Department of Internal Medicine, Dong-A University, Busan 49201, Korea.
| | - Mi Hwa Lee
- Department of Anatomy and Cell Biology and Mitochondria Hub Regulation Center, Dong-A University, Busan 49315, Korea.
| | - Young Ki Son
- Department of Internal Medicine, Dong-A University, Busan 49201, Korea.
| | - Seong Eun Kim
- Department of Internal Medicine, Dong-A University, Busan 49201, Korea.
| | - Won Suk An
- Department of Internal Medicine, Dong-A University, Busan 49201, Korea.
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Asbell PA, Maguire MG, Peskin E, Bunya VY, Kuklinski EJ. Dry Eye Assessment and Management (DREAM©) Study: Study design and baseline characteristics. Contemp Clin Trials 2018; 71:70-79. [PMID: 29883769 PMCID: PMC7250048 DOI: 10.1016/j.cct.2018.06.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 05/23/2018] [Accepted: 06/01/2018] [Indexed: 12/21/2022]
Abstract
PURPOSE Describe trial design and baseline characteristics of participants in the DRy Eye Assessment and Management (DREAM©) Study. DESIGN Prospective, multi-center, randomized, double-masked "real-world" clinical trial assessing efficacy and safety of oral omega-3 (ω3) supplementation for the treatment of dry eye disease (DED). METHODS RESULTS: Mean age of participants was 58.0 ± 13.2 years. Mean OSDI score at baseline was 44.4 ± 14.2. Mean conjunctival staining score (scale 0-6) was 3.0 ± 1.4, corneal staining score (scale 0-15) was 3.9 ± 2.7, tear break-up time was 3.1 ± 1.5 s, and Schirmer test was 9.6 ± 6.5 mm/5 min. CONCLUSIONS DREAM© participants mirror real world patients who seek intervention for their DED-related symptoms despite their current treatments. Results regarding the efficacy of omega-3 supplementation will be helpful to clinicians and patients with moderate to severe DED who are considering omega-3 as a treatment. This trial design may be a model for future RCT's on nutritional supplements and DED treatments seeking to provide useful information for clinical practice. TRIAL REGISTRATION ClinicalTrials.gov number NCT02128763.
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Affiliation(s)
- Penny A Asbell
- Icahn School of Medicine at Mount Sinai, Department of Ophthalmology, 1468 Madison Ave, Box 1183, New York, NY 10029, United States.
| | - Maureen G Maguire
- University of Pennsylvania, Department of Ophthalmology, 3535 Market Street, Suite 700, Philadelphia, PA 19104, United States
| | - Ellen Peskin
- University of Pennsylvania, Department of Ophthalmology, 3535 Market Street, Suite 700, Philadelphia, PA 19104, United States
| | - Vatinee Y Bunya
- University of Pennsylvania, Department of Ophthalmology, 3535 Market Street, Suite 700, Philadelphia, PA 19104, United States
| | - Eric J Kuklinski
- Icahn School of Medicine at Mount Sinai, Department of Ophthalmology, 1468 Madison Ave, Box 1183, New York, NY 10029, United States
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Hu C, Yang M, Zhu X, Gao P, Yang S, Han Y, Chen X, Xiao L, Yuan S, Liu F, Kanwar YS, Sun L. Effects of Omega-3 Fatty Acids on Markers of Inflammation in Patients With Chronic Kidney Disease: A Controversial Issue. Ther Apher Dial 2018; 22:124-132. [PMID: 29271576 PMCID: PMC5880693 DOI: 10.1111/1744-9987.12611] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 08/09/2017] [Accepted: 08/16/2017] [Indexed: 11/30/2022]
Abstract
Chronic kidney disease (CKD) is a global problem which contributes to a significant morbidity and mortality in China. Concomitant inflammatory state further boosts the mortality due to cardiovascular events in patients with CKD undergoing dialysis. There is a general notion that Omega-3 fatty acids including docosahexaenoic acids (DHA) and eicosapentaenoic (EPA) have certain health benefits perhaps via the regulation of inflammation. However, the anti-inflammatory effect of omega-3 fatty acids in patients with CKD is controversial. We analyzed the data of oral supplementation of omega-3 fatty acids in CKD patients by searching literature on database from inception to August 2016. The analysis included randomized controlled trials (RCTs) derived from multiple databases, and the effect of omega-3 fatty acids supplementation versus the control cohorts were compared. All of the data analysis was calculated by RevMan 5.2. A total of 12 RCTs involving 487 patients were included in the meta-analysis. Among them 254 patients received omega-3 fatty acids and 233 patients served as controls who received placebo. The meta-analysis revealed no statistical significance in serum levels of C-reactive protein (CRP) (SMD, -0.20; 95% CI, -0.44 to 0.05; P = 0.11), IL-6 (SMD, 0.00; 95% CI, -0.33 to 0.33; P = 0.99) and TNF-α (SMD, 0.14; 95% CI, -0.17 to 0.44; P = 0.38) between the omega-3 fatty acids supplementation group and control. This suggested that there is insufficient evidence to conclude the benefit of omega-3 fatty acids oral supplementation in reducing serum levels of CRP, IL-6 and TNF-α in patients with CKD.
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Affiliation(s)
- Chun Hu
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ming Yang
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xuejing Zhu
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Peng Gao
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shikun Yang
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Nephrology, the third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yachun Han
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xianghui Chen
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Li Xiao
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shuguang Yuan
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fuyou Liu
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yashpal S. Kanwar
- Department of Pathology, Northwestern University, Chicago, Illinois; Department of Medicine, Northwestern University, Chicago, Illinois
| | - Lin Sun
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
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Beneficial Effects of 6-Month Supplementation with Omega-3 Acids on Selected Inflammatory Markers in Patients with Chronic Kidney Disease Stages 1-3. BIOMED RESEARCH INTERNATIONAL 2017; 2017:1680985. [PMID: 29349065 PMCID: PMC5734005 DOI: 10.1155/2017/1680985] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 10/15/2017] [Indexed: 12/13/2022]
Abstract
Introduction Chronic kidney disease (CKD) is accompanied by inflammation. The aim of this study was to evaluate the effect of 6-month supplementation with omega-3 acids on selected markers of inflammation in patients with CKD stages 1–3. Methods Six-month supplementation with omega-3 acids (2 g/day) was administered to 87 CKD patients and to 27 healthy individuals. At baseline and after follow-up, blood was taken for C-reactive protein (CRP) and monocyte chemotactic protein-1 (MCP-1) concentration and white blood cell (WBC) count. Serum concentration of omega-3 acids—eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and alpha-linolenic acid (ALA)—was determined using gas chromatography. And 24-hour urinary collection was performed to measure MCP-1 excretion. Results After six-month omega-3 supplementation, ALA concentration increased in CKD patients and in the reference group, while EPA and DHA did not change. At follow-up, a significant decrease in urinary MCP-1 excretion in CKD (p = 0.0012) and in the reference group (p = 0.001) was found. CRP, serum MCP-1, and WBC did not change significantly. The estimated glomerular filtration rate (eGFR) did not change significantly in the CKD group. Conclusions The reduction of urinary MCP-1 excretion in the absence of MCP-1 serum concentration may suggest a beneficial effect of omega-3 supplementation on tubular MCP-1 production. Trial Registration This study was registered in ClinicalTrials.gov (identifier: NCT02147002).
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Lee SM, Chung SH, Park Y, Park MK, Son YK, Kim SE, An WS. Effect of Omega-3 Fatty Acid on the Fatty Acid Content of the Erythrocyte Membrane and Proteinuria in Patients with Diabetic Nephropathy. Int J Endocrinol 2015; 2015:208121. [PMID: 26089878 PMCID: PMC4452183 DOI: 10.1155/2015/208121] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Accepted: 10/21/2014] [Indexed: 01/13/2023] Open
Abstract
Diabetic nephropathy is the leading cause of end-stage renal disease and is associated with an increased risk of cardiovascular events. Dietary omega-3 fatty acid (FA) has cardioprotective effect and is associated with a slower deterioration of albumin excretion in patients with diabetic nephropathy. In this study, we evaluated the effect of omega-3 FA on proteinuria in diabetic nephropathy patients who are controlling blood pressure (BP) with angiotensin converting enzyme inhibitor (ACEi) or angiotensin II receptor blocker (ARB). In addition, we identified changes in erythrocyte membrane FA contents. A total of 19 patients who were treated with ACEi or ARB for at least 6 months were treated for 12 weeks with omega-3 FA (Omacor, 3 g/day) or a control treatment (olive oil, 3 g/day). Proteinuria levels were unchanged after 12 weeks compared with baseline values in both groups. The erythrocyte membrane contents of omega-3 FA and eicosapentaenoic acid (EPA) were significantly increased, and oleic acid, arachidonic acid : EPA ratio, and omega-6 : omega-3 FA ratio were significantly decreased after 12 weeks compared with the baseline values in the omega-3 FA group. Although omega-3 FA did not appear to alter proteinuria, erythrocyte membrane FA contents, including oleic acid, were altered by omega-3 FA supplementation.
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Affiliation(s)
- Su Mi Lee
- Department of Internal Medicine, Dong-A University, 3Ga-1, Dongdaesin-Dong, Seo-Gu, Busan 602-715, Republic of Korea
| | - Seuk Hee Chung
- Department of Internal Medicine, Ulsan Central Hospital, Ulsan 680-739, Republic of Korea
| | - Yongjin Park
- Department of Family Medicine, Dong-A University, Busan 602-715, Republic of Korea
| | - Mi Kyoung Park
- Department of Internal Medicine, Dong-A University, 3Ga-1, Dongdaesin-Dong, Seo-Gu, Busan 602-715, Republic of Korea
| | - Young Ki Son
- Department of Internal Medicine, Dong-A University, 3Ga-1, Dongdaesin-Dong, Seo-Gu, Busan 602-715, Republic of Korea
| | - Seong Eun Kim
- Department of Internal Medicine, Dong-A University, 3Ga-1, Dongdaesin-Dong, Seo-Gu, Busan 602-715, Republic of Korea
| | - Won Suk An
- Department of Internal Medicine, Dong-A University, 3Ga-1, Dongdaesin-Dong, Seo-Gu, Busan 602-715, Republic of Korea
- Institute of Medical Science, Dong-A University College of Medicine, Busan 602-714, Republic of Korea
- *Won Suk An:
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