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Semeraro MD, Beltrami AP, Kharrat F, Almer G, Sedej S, Renner W, Gruber HJ, Curcio F, Herrmann M. The impact of moderate endurance exercise on cardiac telomeres and cardiovascular remodeling in obese rats. Front Cardiovasc Med 2023; 9:1080077. [PMID: 36684585 PMCID: PMC9853517 DOI: 10.3389/fcvm.2022.1080077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 12/13/2022] [Indexed: 01/07/2023] Open
Abstract
Introduction Hypercaloric nutrition and physical inactivity cause obesity, a potential driver of myocardial apoptosis and senescence that may accelerate cardiac aging. Although physical activity reduces mortality, its impact on myocardial aging is insufficiently understood. Here we investigated the effects of a hypercaloric high-fat diet (HFD) and regular exercise training on cardiac cells telomeres and histomorphometric indices of cardiac aging. Methods Ninety-six 4-months old female Sprague-Dawley rats were fed for 10 months normal (ND) or a HFD diet. Half of the animals in each group performed 30 min treadmill-running sessions on 5 consecutive days per week. At study end, cardiomyocyte cross-sectional area (CSA), interstitial collagen content, vascular density, apoptotic and senescent cells, relative telomere length (RTL), and expression of telomerase-reverse transcriptase (Tert) as marker of telomere-related senescence and apoptosis were analyzed. Results Compared to ND, the HFD group developed obesity, higher CSA, lower capillary density and tended to have more apoptotic cardiomyocytes and interstitials cells. Myocardial RTL and the expression of Terf-1 and Terf-2 were comparable in sedentary HFD and ND animals. In the HFD group, regular moderate endurance exercise improved myocardial vascularization, but had no effect on CSA or apoptosis. Notably, the combination of exercise and HFD increased senescence when compared to sedentary ND or HFD, and reduced RTL when compared to exercise ND animals. Exercising HFD animals also showed a trend toward higher Tert expression compared to all other groups. In addition, exercise reduced Terf-1 expression regardless of diet. Conclusion HFD-induced obesity showed no effects on myocardial telomeres and induced only mild morphologic alterations. Summarized, long-term moderate endurance exercise partially reverses HFD-induced effects but may even trigger cardiac remodeling in the context of obesity.
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Affiliation(s)
- Maria Donatella Semeraro
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - Antonio Paolo Beltrami
- Department of Medicine (DAME), University of Udine, Udine, Italy,*Correspondence: Antonio Paolo Beltrami ✉
| | - Feras Kharrat
- Department of Medicine (DAME), University of Udine, Udine, Italy
| | - Gunter Almer
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - Simon Sedej
- Department of Cardiology, Medical University of Graz, Graz, Austria,BTM BioTechMed-Graz, Graz, Austria,Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Wilfried Renner
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - Hans-Jürgen Gruber
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - Francesco Curcio
- Department of Medicine (DAME), University of Udine, Udine, Italy
| | - Markus Herrmann
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
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Hypoglycemic Effect of the N-Butanol Fraction of Torreya grandis Leaves on Type 2 Diabetes Mellitus in Rats through the Amelioration of Oxidative Stress and Enhancement of β-Cell Function. BIOMED RESEARCH INTERNATIONAL 2022; 2022:5648896. [PMID: 36619301 PMCID: PMC9812625 DOI: 10.1155/2022/5648896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 10/03/2022] [Accepted: 11/16/2022] [Indexed: 12/31/2022]
Abstract
Materials and Methods Sprague-Dawley rats were randomly divided into six groups: control, T2DM, metformin, high-dose BFTL (800 mg/kg), middle-dose BFTL (400 mg/kg), and low-dose BFTL (200 mg/kg). After 4 weeks of BFTL treatment, the correlations of serum indicators with protein expression in tissue were determined, and pathological changes in the liver, kidneys, and pancreas were analyzed. Results Compared with the results in the T2DM group, serum fasting blood glucose, triglyceride, total cholesterol, malondialdehyde, alanine aminotransferase, and aspartate aminotransferase levels were significantly decreased (p < 0.05), whereas superoxide dismutase and glutathione peroxidase levels were significantly increased (p < 0.05) in the high-, middle-, and low-dose BFTL groups. The treatment also improved oral glucose tolerance. In addition, the pathological changes of the liver, kidney, and pancreas were improved by BFTL treatment. Cytochrome and caspase-3 expression in pancreatic was significantly decreased (p < 0.05) by BFTL treatment, whereas the Bcl-2/Bax ratio was significantly increased (p < 0.05). Discussion and Conclusion. BFTL exerted significant hypoglycemic effect on T2DM model rats, and its mechanism involved the suppression of blood glucose levels and oxidative stress by improving the metabolism of blood lipids and antioxidant capacity, boosting β-cell function, and inhibiting β-cell apoptosis.
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Semeraro MD, Almer G, Renner W, Gruber HJ, Herrmann M. Influences of Long-Term Exercise and High-Fat Diet on Age-Related Telomere Shortening in Rats. Cells 2022; 11:1605. [PMID: 35626642 PMCID: PMC9139508 DOI: 10.3390/cells11101605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/07/2022] [Accepted: 05/09/2022] [Indexed: 12/22/2022] Open
Abstract
(1) Obesity and exercise are believed to modify age-related telomere shortening by regulating telomerase and shelterins. Existing studies are inconsistent and limited to peripheral blood mononuclear cells (PBMCs) and selected solid tissues. (2) Female Sprague Dawley (SD) rats received either standard diet (ND) or high-fat diet (HFD). For 10 months, half of the animals from both diet groups performed 30 min running at 30 cm/s on five consecutive days followed by two days of rest (exeND, exeHFD). The remaining animals served as sedentary controls (coND, coHFD). Relative telomere length (RTL) and mRNA expression of telomerase (TERT) and the shelterins TERF-1 and TERF-2 were mapped in PBMCs and nine solid tissues. (3) At study end, coND and coHFD animals showed comparable RTL in most tissues with no systematic differences in TERT, TERF-1 and TERF-2 expression. Only visceral fat of coHFD animals showed reduced RTL and lower expression of TERT, TERF-1 and TERF-2. Exercise had heterogeneous effects on RTL in exeND and exeHFD animals with longer telomeres in aorta and large intestine, but shorter telomeres in PBMCs and liver. Telomere-regulating genes showed inconsistent expression patterns. (4) In conclusion, regular exercise or HFD cannot systematically modify RTL by regulating the expression of telomerase and shelterins.
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Affiliation(s)
| | | | | | - Hans-Jürgen Gruber
- Clinical Institute of Medical and Chemical Laboratory Diagnostics (CIMCL), Medical University of Graz, 8036 Graz, Austria; (M.D.S.); (G.A.); (W.R.); (M.H.)
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Henning T, Kochlik B, Kusch P, Strauss M, Jurić V, Pignitter M, Marusch F, Grune T, Weber D. Pre-Operative Assessment of Micronutrients, Amino Acids, Phospholipids and Oxidative Stress in Bariatric Surgery Candidates. Antioxidants (Basel) 2022; 11:antiox11040774. [PMID: 35453460 PMCID: PMC9031169 DOI: 10.3390/antiox11040774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/09/2022] [Accepted: 04/11/2022] [Indexed: 11/16/2022] Open
Abstract
Obesity has been linked to lower concentrations of fat-soluble micronutrients and higher concentrations of oxidative stress markers as well as an altered metabolism of branched chain amino acids and phospholipids. In the context of morbid obesity, the aim of this study was to investigate whether and to which extent plasma status of micronutrients, amino acids, phospholipids and oxidative stress differs between morbidly obese (n = 23) and non-obese patients (n = 13). In addition to plasma, malondialdehyde, retinol, cholesterol and triglycerides were assessed in visceral and subcutaneous adipose tissue in both groups. Plasma γ-tocopherol was significantly lower (p < 0.011) in the obese group while other fat-soluble micronutrients showed no statistically significant differences between both groups. Branched-chain amino acids (all p < 0.008) and lysine (p < 0.006) were significantly higher in morbidly obese patients compared to the control group. Malondialdehyde concentrations in both visceral (p < 0.016) and subcutaneous (p < 0.002) adipose tissue were significantly higher in the morbidly obese group while plasma markers of oxidative stress showed no significant differences between both groups. Significantly lower plasma concentrations of phosphatidylcholine, phosphatidylethanolamine, lyso-phosphatidylethanolamine (all p < 0.05) and their corresponding ether-linked analogs were observed, which were all reduced in obese participants compared to the control group. Pre-operative assessment of micronutrients in patients undergoing bariatric surgery is recommended for early identification of patients who might be at higher risk to develop a severe micronutrient deficiency post-surgery. Assessment of plasma BCAAs and phospholipids in obese patients might help to differentiate between metabolic healthy patients and those with metabolic disorders.
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Affiliation(s)
- Thorsten Henning
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558 Nuthetal, Germany; (T.H.); (P.K.); (T.G.)
- Food4Future (F4F), c/o Leibniz Institute of Vegetable and Ornamental Crops (IGZ), 14979 Grossbeeren, Germany
- NutriAct-Competence Cluster Nutrition Research Berlin-Potsdam, 14558 Nuthetal, Germany;
| | - Bastian Kochlik
- NutriAct-Competence Cluster Nutrition Research Berlin-Potsdam, 14558 Nuthetal, Germany;
- Department of Nutrition and Gerontology, German Institute of Human Nutrition Potsdam-Rehbruecke, (DIfE), 14558 Nuthetal, Germany
| | - Paula Kusch
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558 Nuthetal, Germany; (T.H.); (P.K.); (T.G.)
- Institute of Nutritional Science, University of Potsdam, 14469 Potsdam, Germany
| | - Matthias Strauss
- Department of Physiological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria; (M.S.); (V.J.); (M.P.)
- Vienna Doctoral School in Chemistry (DoSChem), University of Vienna, 1090 Vienna, Austria
| | - Viktorija Jurić
- Department of Physiological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria; (M.S.); (V.J.); (M.P.)
| | - Marc Pignitter
- Department of Physiological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria; (M.S.); (V.J.); (M.P.)
| | - Frank Marusch
- Department of General and Visceral Surgery, Klinikum Ernst von Bergmann, 14467 Potsdam, Germany;
| | - Tilman Grune
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558 Nuthetal, Germany; (T.H.); (P.K.); (T.G.)
- NutriAct-Competence Cluster Nutrition Research Berlin-Potsdam, 14558 Nuthetal, Germany;
- Institute of Nutritional Science, University of Potsdam, 14469 Potsdam, Germany
- Department of Physiological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria; (M.S.); (V.J.); (M.P.)
- Deutsches Zentrum für Diabetesforschung (DZD), 85764 Neuherberg, Germany
| | - Daniela Weber
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558 Nuthetal, Germany; (T.H.); (P.K.); (T.G.)
- Food4Future (F4F), c/o Leibniz Institute of Vegetable and Ornamental Crops (IGZ), 14979 Grossbeeren, Germany
- NutriAct-Competence Cluster Nutrition Research Berlin-Potsdam, 14558 Nuthetal, Germany;
- Correspondence:
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Møller P, Stopper H, Collins AR. Measurement of DNA damage with the comet assay in high-prevalence diseases: current status and future directions. Mutagenesis 2021; 35:5-18. [PMID: 31294794 DOI: 10.1093/mutage/gez018] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 06/19/2019] [Indexed: 12/12/2022] Open
Abstract
The comet assay is widely used in studies on genotoxicity testing, human biomonitoring and clinical studies. The simple version of the assay detects a mixture of DNA strand breaks and alkali-labile sites; these lesions are typically described as DNA strand breaks to distinguish them from oxidatively damaged DNA that are measured with the enzyme-modified comet assay. This review assesses the association between high-prevalence diseases in high-income countries and DNA damage measured with the comet assay in humans. The majority of case-control studies have assessed genotoxicity in white blood cells. Patients with coronary artery disease, diabetes, kidney disease, chronic obstructive pulmonary disease and Alzheimer's disease have on average 2-fold higher levels of DNA strand breaks compared with healthy controls. Patients with coronary artery disease, diabetes, kidney disease and chronic obstructive pulmonary disease also have 2- to 3-fold higher levels of oxidatively damaged DNA in white blood cells than controls, although there is not a clear difference in DNA damage levels between the different diseases. Case-control studies have shown elevated levels of DNA strand breaks in patients with breast cancer, whereas there are only few studies on colorectal and lung cancers. At present, it is not possible to assess if these neoplastic diseases are associated with a different level of DNA damage compared with non-neoplastic diseases.
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Affiliation(s)
- Peter Møller
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Copenhagen H, Denmark
| | - Helga Stopper
- Institute of Pharmacology and Toxicology, University of Wuerzburg, Wuerzburg, Germany
| | - Andrew R Collins
- Department of Nutrition, Institute for Basic Medical Sciences, University of Oslo, Oslo, Norway
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Dong K, Peng X, Huang J, Xia S, Yang Y. Association of leukocyte telomere length with metabolic syndrome in type 2 diabetes mellitus. JOURNAL OF RESEARCH IN MEDICAL SCIENCES 2021; 26:43. [PMID: 34484375 PMCID: PMC8384009 DOI: 10.4103/jrms.jrms_793_20] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/06/2020] [Accepted: 02/10/2021] [Indexed: 11/18/2022]
Abstract
Background: Leukocyte telomere length (LTL) has been revealed to be associated with aging-related diseases such as metabolic syndrome (MetS) and Type 2 diabetes mellitus (T2DM). We aimed to investigate the correlation of LTL with MetS and its components in T2DM patients in this cross-sectional study. Materials and Methods: A total of 344 T2DM patients were enrolled into this study. LTL was measured by Southern blot-based terminal restriction fragment length analysis. MetS was clinically defined by 2007 Chinese Guidelines on Prevention and Treatment of Dyslipidemia in Adults. Results: Of 344 T2DM patients, 53% had MetS. T2DM patients with MetS had significantly longer LTL than those without MetS (6451.95 ± 51.10 base pairs vs. 6076.13 ± 55.13 base pairs, P < 0.001), especially when T2DM patients had poor glycemic control (hemoglobin A1c ≥7%). Meanwhile, the trend of longer LTL was associated with the increased components of MetS in T2DM patient. Finally, LTL had a significant association with MetS (odds ratio [OR]: 2.096, 95% confidence interval [CI] 1.337–3.285, P = 0.001), low levels of high-density lipoprotein-cholesterol (HDL-C) (OR: 2.412, 95% CI 1.350–4.308, P = 0.003) in T2DM patients. Conclusion: T2DM patients with MetS had a significantly longer LTL than those without MetS. The longer LTL was especially evident in T2DM patients with poor glycemic control. Longer LTL was positively associated with MetS, particularly low levels of HDL-C in T2DM patients.
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Association of leukocyte telomere length with non-alcoholic fatty liver disease in patients with type 2 diabetes. Chin Med J (Engl) 2020; 132:2927-2933. [PMID: 31809318 PMCID: PMC6964937 DOI: 10.1097/cm9.0000000000000559] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background: Leukocyte telomere has been shown to be related to insulin resistance-related diseases, such as type 2 diabetes mellitus (T2DM) and non-alcoholic fatty liver disease (NAFLD). This cross-sectional study investigated the association of leukocyte telomere length (LTL) with NAFLD in T2DM patients. Methods: Clinical features were collected and LTL was measured by Southern blot-based terminal restriction fragment length analysis in 120 T2DM patients without NAFLD and 120 age-matched T2DM patients with NAFLD. NAFLD was clinically defined by manifestations of ultrasonography. The correlation between LTL and clinical and biochemical parameters were analyzed by Pearson correlation or Spearman correlation analysis. Factors for NAFLD in T2DM patients were identified using multiple logistic regressions. Results: LTL in T2DM patients with NAFLD were significantly longer than those without NAFLD (6400.2 ± 71.8 base pairs [bp] vs. 6023.7 ± 49.5 bp, P < 0.001), especially when diabetes duration was less than 2 years. Meanwhile, the trend of shorter LTL was associated with the increased diabetes duration in T2DM patient with NAFLD, but not in T2DM patients without NAFLD. Finally, LTL (odds ratio [OR]: 1.001, 95% confidence interval [CI]: 1.000–1.002, P = 0.001), as well as body mass index (OR: 1.314, 95% CI: 1.169–1.477, P < 0.001) and triglycerides (OR: 1.984, 95% CI: 1.432–2.747, P < 0.001), had a significant association with NAFLD status in T2DM patients. Conclusions: T2DM patients with NAFLD had a significantly longer LTL than those without NAFLD. The longer LTL was especially evident in the early stage of T2DM, indicating that longer LTL may be used as a biomarker for NAFLD in T2DM patients.
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Dzięgielewska-Gęsiak S, Stołtny D, Brożek A, Muc-Wierzgoń M, Wysocka E. Are insulin-resistance and oxidative stress cause or consequence of aging. Exp Biol Med (Maywood) 2020; 245:1260-1267. [PMID: 32469639 DOI: 10.1177/1535370220929621] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
IMPACT STATEMENT Insulin resistance is associated with oxidative stress leading to cardiovascular diseases. However, little research has been performed examining elderly individuals with or without insulin-resistance. We demonstrate that antioxidant defense systems alone is not able to abrogate insulin action in elderly individuals at high risk for atherosclerosis, whereas the combined oxidant-antioxidant markers (thiobarbituric acid-reacting substances (TBARS), Cu,Zn-superoxide dismutase (SOD-1), and total antioxidant status (TAS)) might be more efficient and perhaps produce better clinical outcome. In fact, a decrease in oxidative stress and strong interaction between antioxidant defense can be seen only among insulin-resistant elderly individuals. This is, in our opinion, valuable information for clinicians, since insulin-resistance is considered strong cardiovascular risk factor.
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Affiliation(s)
| | - Dorota Stołtny
- Department of Internal Medicine, Medical University of Silesia in Katowice, Bytom 41-902, Poland
| | - Alicja Brożek
- Department of Clinical Biochemistry and Laboratory Medicine, Poznan University of Medical Sciences, Poznan 60-806, Poland
| | - Małgorzata Muc-Wierzgoń
- Department of Internal Medicine, Medical University of Silesia in Katowice, Bytom 41-902, Poland
| | - Ewa Wysocka
- Chair and Department of Laboratory Diagnostics, Poznan University of Medical Sciences, Poznan 60-569, Poland
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Shin YA. How Does Obesity and Physical Activity Affect Aging?: Focused on Telomere as a Biomarker of Aging. J Obes Metab Syndr 2019; 28:92-104. [PMID: 31294341 PMCID: PMC6604845 DOI: 10.7570/jomes.2019.28.2.92] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 05/23/2019] [Accepted: 06/07/2019] [Indexed: 12/17/2022] Open
Abstract
Obesity is known to continuously increase systemic inflammation and oxidative stress, leading to shorter telomere length. However, research regarding the correlation between physical activity, exercise, obesity, and telomere length is not consistent. Therefore, this review aims to summarize the effects of obesity, physical activity, and exercise on telomere length. Our search for effects of obesity, physical activity, and exercise, on telomeres was conducted using three computerized databases: Medline, PubMed, and EBSCO. Keywords in the search were “physical activity, exercise and obesity,” “physical activity, exercise and telomere,” and “obesity and telomere.” Improving chronic inflammation and oxidative stress levels can prevent telomere attrition due to obesity. In addition, differences in the anti-aging effects of physical activity and exercise are shown in the post-middle-age period, when telomere length changes, rather than in past exercise habits. Maintaining high cardiorespiratory fitness levels through regular exercise and physical activity in the post-middle-age period minimizes obesity-related diseases and helps maintain telomere length, which is an index of cell senescence.
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Affiliation(s)
- Yun-A Shin
- Department of Prescription and Rehabilitation of Exercise, College of Sport Science, Dankook University, Cheonan, Korea
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Kahraman C, Alver A, Bodur A, İnce Akça İ, Us Altay D, Canpolat S. Oxidant-Antioxidant Balance Changes in Adipose Tissues of High Fat Diet-Induced Obese Rats: Depot-Specific Manner and Ineffectiveness of N-Acetylcysteine. KOCAELI ÜNIVERSITESI SAĞLIK BILIMLERI DERGISI 2019. [DOI: 10.30934/kusbed.498189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Bankoglu EE, Seyfried F, Arnold C, Soliman A, Jurowich C, Germer CT, Otto C, Stopper H. Reduction of DNA damage in peripheral lymphocytes of obese patients after bariatric surgery-mediated weight loss. Mutagenesis 2018; 33:61-67. [PMID: 29294093 DOI: 10.1093/mutage/gex040] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 11/23/2017] [Indexed: 12/20/2022] Open
Abstract
Obesity is associated with several detrimental health consequences, among them an increased risk for development of cancer, and an overall elevated mortality. Multiple factors like hyperinsulinemia, chronic microinflammation and oxidative stress may be involved. The comet assay has been proven to be very sensitive for detection of DNA damage and has been used to explore the relationship between overweight/obesity and DNA damage, but results are controversial. Very few investigations have been performed to correlate weight loss of obese individuals and possible reduction of DNA damage and these studies have not provided clear results. As currently, only surgical interventions (metabolic/bariatric surgery) enable substantial and sustained weight loss in the vast majority of morbidly obese patients, we analyzed whole blood samples of 56 subsequent patients prior, 6 and 12 months after bariatric surgery. No reduction of DNA damage was observed in comet assay analysis after 6 months despite efficient weight loss, but a significant reduction was observed 12 months after surgery. Concurrently, the ferric-reducing antioxidant power assay showed a significant reduction after 6 and 12 months. The level of oxidised glutathione and lipid peroxidation products were increased at 6 months but normalised at 12 months after surgery. As conclusion, a significant weight reduction in obese patients may help to diminish existing DNA damage besides improving many other health aspects in these patients.
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Affiliation(s)
- Ezgi Eyluel Bankoglu
- Institute of Pharmacology and Toxicology, University of Wuerzburg, Wuerzburg, Germany
| | - Florian Seyfried
- Department of General, Visceral, Vascular and Paediatric Surgery, University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Charlotte Arnold
- Institute of Pharmacology and Toxicology, University of Wuerzburg, Wuerzburg, Germany
| | - Alexander Soliman
- Institute of Pharmacology and Toxicology, University of Wuerzburg, Wuerzburg, Germany
| | - Christian Jurowich
- Department of General, Visceral, Vascular and Paediatric Surgery, University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Christoph Thomas Germer
- Department of General, Visceral, Vascular and Paediatric Surgery, University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Christoph Otto
- Department of General, Visceral, Vascular and Paediatric Surgery, University Hospital of Wuerzburg, Wuerzburg, Germany.,Experimental Surgery, Department of General, Visceral, Vascular, and Pediatric Surgery, University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Helga Stopper
- Institute of Pharmacology and Toxicology, University of Wuerzburg, Wuerzburg, Germany
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Grossini E, Farruggio S, Raina G, Mary D, Deiro G, Gentilli S. Effects of Genistein on Differentiation and Viability of Human Visceral Adipocytes. Nutrients 2018; 10:E978. [PMID: 30060502 PMCID: PMC6115928 DOI: 10.3390/nu10080978] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 07/17/2018] [Accepted: 07/26/2018] [Indexed: 01/05/2023] Open
Abstract
Obesity can lead to pathological growth of adipocytes by inducing inflammation and oxidative stress. Genistein could be a potential candidate for the treatment of obesity due to its antioxidant properties. Specific kits were used to examine the effects of genistein vs adiponectin on human visceral pre-adipocytes differentiation, cell viability, mitochondrial membrane potential, and oxidative stress in pre-adipocytes and in white/brown adipocytes. Western Blot was performed to examine changes in protein activation/expression. Genistein increased human visceral pre-adipocytes differentiation and browning, and caused a dose-related improvement of cell viability and mitochondrial membrane potential. Similar effects were observed in brown adipocytes and in white adipocytes, although in white cells the increase of cell viability was inversely related to the dose. Moreover, genistein potentiated AMP-activated protein kinase (AMPK)/mitofusin2 activation/expression in pre-adipocytes and white/brown adipocytes and protected them from the effects of hydrogen peroxide. The effects caused by genistein were similar to those of adiponectin. The results obtained showed that genistein increases human visceral pre-adipocytes differentiation and browning, protected against oxidative stress in pre-adipocytes and white/brown adipocytes through mechanisms related to AMPK-signalling and the keeping of mitochondrial function.
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Affiliation(s)
- Elena Grossini
- Laboratory of Physiology, Department of Translational Medicine, University of Eastern Piedmont, Via Solaroli 17, 28100 Novara, Italy.
- Experimental Surgery, Azienda Ospedaliera Universitaria Maggiore della Carità, Corso Mazzini 36, 28100 Novara, Italy.
- AGING Project, Department of Translational Medicine, University of Eastern Piedmont, via Solaroli 17, 28100 Novara, Italy.
| | - Serena Farruggio
- Laboratory of Physiology, Department of Translational Medicine, University of Eastern Piedmont, Via Solaroli 17, 28100 Novara, Italy.
- AGING Project, Department of Translational Medicine, University of Eastern Piedmont, via Solaroli 17, 28100 Novara, Italy.
| | - Giulia Raina
- Laboratory of Physiology, Department of Translational Medicine, University of Eastern Piedmont, Via Solaroli 17, 28100 Novara, Italy.
- AGING Project, Department of Translational Medicine, University of Eastern Piedmont, via Solaroli 17, 28100 Novara, Italy.
| | - David Mary
- Laboratory of Physiology, Department of Translational Medicine, University of Eastern Piedmont, Via Solaroli 17, 28100 Novara, Italy.
| | - Giacomo Deiro
- General Surgery Unit, Department of Health Sciences, University of Eastern Piedmont, Via Solaroli 17, 28100 Novara, Italy.
| | - Sergio Gentilli
- General Surgery Unit, Department of Health Sciences, University of Eastern Piedmont, Via Solaroli 17, 28100 Novara, Italy.
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Setayesh T, Nersesyan A, Mišík M, Ferk F, Langie S, Andrade VM, Haslberger A, Knasmüller S. Impact of obesity and overweight on DNA stability: Few facts and many hypotheses. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2018; 777:64-91. [PMID: 30115431 DOI: 10.1016/j.mrrev.2018.07.001] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 05/03/2018] [Accepted: 07/06/2018] [Indexed: 12/18/2022]
Abstract
Health authorities are alarmed worldwide about the increase of obesity and overweight in the last decades which lead to adverse health effects including inflammation, cancer, accelerated aging and infertility. We evaluated the state of knowledge concerning the impact of elevated body mass on genomic instability. Results of investigations with humans (39 studies) in which DNA damage was monitored in lymphocytes and sperm cells, are conflicting and probably as a consequence of heterogeneous study designs and confounding factors (e.g. uncontrolled intake of vitamins and minerals and consumption of different food types). Results of animal studies with defined diets (23 studies) are more consistent and show that excess body fat causes DNA damage in multiple organs including brain, liver, colon and testes. Different molecular mechanisms may cause genetic instability in overweight/obese individuals. ROS formation and lipid peroxidation were found in several investigations and may be caused by increased insulin, fatty acid and glucose levels or indirectly via inflammation. Also reduced DNA repair and formation of advanced glycation end products may play a role but more data are required to draw firm conclusions. Reduction of telomere lengths and hormonal imbalances are characteristic for overweight/obesity but the former effects are delayed and moderate and hormonal effects were not investigated in regard to genomic instability in obese individuals. Increased BMI values affect also the activities of drug metabolizing enzymes which activate/detoxify genotoxic carcinogens, but no studies concerning the impact of these alterations of DNA damage in obese individuals are available. Overall, the knowledge concerning the impact of increased body weight and DNA damage is poor and further research is warranted to shed light on this important issue.
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Affiliation(s)
- Tahereh Setayesh
- Institute of Cancer Research, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Armen Nersesyan
- Institute of Cancer Research, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Miroslav Mišík
- Institute of Cancer Research, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Franziska Ferk
- Institute of Cancer Research, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Sabine Langie
- Environmental Risk and Health Unit, Flemish Institute for Technological Research (VITO), Mol, Belgium
| | - Vanessa M Andrade
- Laboratório de Biologia Celulare Molecular, Programa de Pós-Graduação em Ciências da Saúde, Unidade Acadêmica de Ciências da Saúde, Universidade do Extremo Sul Catarinense (UNESC), Brazil
| | | | - Siegfried Knasmüller
- Institute of Cancer Research, Department of Medicine I, Medical University of Vienna, Vienna, Austria.
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Tamura Y, Takubo K, Aida J, Araki A, Ito H. Telomere attrition and diabetes mellitus. Geriatr Gerontol Int 2016; 16 Suppl 1:66-74. [DOI: 10.1111/ggi.12738] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2015] [Indexed: 01/20/2023]
Affiliation(s)
- Yoshiaki Tamura
- Department of Diabetes, Metabolism, and Endocrinology; Tokyo Metropolitan Geriatric Hospital; Tokyo Japan
| | - Kaiyo Takubo
- Research Team for Geriatric Pathology and Department of Pathology; Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology; Tokyo Japan
| | - Junko Aida
- Research Team for Geriatric Pathology and Department of Pathology; Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology; Tokyo Japan
| | - Atsushi Araki
- Department of Diabetes, Metabolism, and Endocrinology; Tokyo Metropolitan Geriatric Hospital; Tokyo Japan
| | - Hideki Ito
- Department of Diabetes, Metabolism, and Endocrinology; Tokyo Metropolitan Geriatric Hospital; Tokyo Japan
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Molina N, Bolin A, Otton R. Green tea polyphenols change the profile of inflammatory cytokine release from lymphocytes of obese and lean rats and protect against oxidative damage. Int Immunopharmacol 2015; 28:985-96. [DOI: 10.1016/j.intimp.2015.08.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 08/03/2015] [Accepted: 08/06/2015] [Indexed: 01/03/2023]
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Dong D, Yu J, Wu Y, Fu N, Villela NA, Yang P. Maternal diabetes triggers DNA damage and DNA damage response in neurulation stage embryos through oxidative stress. Biochem Biophys Res Commun 2015; 467:407-12. [PMID: 26427872 DOI: 10.1016/j.bbrc.2015.09.137] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Accepted: 09/24/2015] [Indexed: 01/28/2023]
Abstract
DNA damage and DNA damage response (DDR) in neurulation stage embryos under maternal diabetes conditions are not well understood. The purpose of this study was to investigate whether maternal diabetes and high glucose in vitro induce DNA damage and DDR in the developing embryo through oxidative stress. In vivo experiments were conducted by mating superoxide dismutase 1 (SOD1) transgenic male mice with wild-type (WT) female mice with or without diabetes. Embryonic day 8.75 (E8.75) embryos were tested for the DNA damage markers, phosphorylated histone H2A.X (p-H2A.X) and DDR signaling intermediates, including phosphorylated checkpoint 1 (p-Chk1), phosphorylated checkpoint 2 (p-Chk2), and p53. Levels of the same DNA damage markers and DDR signaling intermediates were also determined in the mouse C17.2 neural stem cell line. Maternal diabetes and high glucose in vitro significantly increased the levels of p-H2A.X. Levels of p-Chk1, p-Chk2, and p53, were elevated under both maternal diabetic and high glucose conditions. SOD1 overexpression blocked maternal diabetes-induced DNA damage and DDR in vivo. Tempol, a SOD1 mimetic, diminished high glucose-induced DNA damage and DDR in vitro. In conclusion, maternal diabetes and high glucose in vitro induce DNA damage and activates DDR through oxidative stress, which may contribute to the pathogenesis of diabetes-associated embryopathy.
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Affiliation(s)
- Daoyin Dong
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Jingwen Yu
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Yanqing Wu
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Noah Fu
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Natalia Arias Villela
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Peixin Yang
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
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18
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Rangel-Zúñiga OA, Camargo A, Marin C, Peña-Orihuela P, Pérez-Martínez P, Delgado-Lista J, González-Guardia L, Yubero-Serrano EM, Tinahones FJ, Malagón MM, Pérez-Jiménez F, Roche HM, López-Miranda J. Proteome from patients with metabolic syndrome is regulated by quantity and quality of dietary lipids. BMC Genomics 2015; 16:509. [PMID: 26152126 PMCID: PMC4493955 DOI: 10.1186/s12864-015-1725-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 06/26/2015] [Indexed: 01/22/2023] Open
Abstract
Background Metabolic syndrome is a multi-component disorder associated to a high risk of cardiovascular disease. Its etiology is the result of a complex interaction between genetic and environmental factors, including dietary habits. We aimed to identify the target proteins modulated by the long-term consumption of four diets differing in the quality and quantity of lipids in the whole proteome of peripheral blood mononuclear cells (PBMC). Results A randomized, controlled trial conducted within the LIPGENE study assigned 24 MetS patients for 12 weeks each to 1 of 4 diets: a) high-saturated fatty acid (HSFA), b) high-monounsaturated fatty acid (HMUFA), c) low-fat, high-complex carbohydrate diets supplemented with placebo (LFHCC) and d) low-fat, high-complex carbohydrate diets supplemented with long chain (LC) n-3 polyunsaturated fatty acids (PUFA) (LFHCC n-3). We analyzed the changes induced in the proteome of both nuclear and cytoplasmic fractions of PBMC using 2-D proteomic analysis. Sixty-seven proteins were differentially expressed after the long-term consumption of the four diets. The HSFA diet induced the expression of proteins responding to oxidative stress, degradation of ubiquitinated proteins and DNA repair. However, HMUFA, LFHCC and LFHCC n-3 diets down-regulated pro-inflammatory and oxidative stress-related proteins and DNA repairing proteins. Conclusion The long-term consumption of HSFA, compared to HMUFA, LFHCC and LFHCC n-3, seems to increase the cardiovascular disease (CVD) risk factors associated with metabolic syndrome, such as inflammation and oxidative stress, and seem lead to DNA damage as a consequence of high oxidative stress. Electronic supplementary material The online version of this article (doi:10.1186/s12864-015-1725-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Oriol Alberto Rangel-Zúñiga
- Lipids and Atherosclerosis Research Unit, IMIBIC/Reina Sofia University Hospital, University of Cordoba, Av. Menendez Pidal s/n. 14004, Córdoba, Spain. .,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain.
| | - Antonio Camargo
- Lipids and Atherosclerosis Research Unit, IMIBIC/Reina Sofia University Hospital, University of Cordoba, Av. Menendez Pidal s/n. 14004, Córdoba, Spain. .,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain.
| | - Carmen Marin
- Lipids and Atherosclerosis Research Unit, IMIBIC/Reina Sofia University Hospital, University of Cordoba, Av. Menendez Pidal s/n. 14004, Córdoba, Spain. .,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain.
| | - Patricia Peña-Orihuela
- Lipids and Atherosclerosis Research Unit, IMIBIC/Reina Sofia University Hospital, University of Cordoba, Av. Menendez Pidal s/n. 14004, Córdoba, Spain. .,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain.
| | - Pablo Pérez-Martínez
- Lipids and Atherosclerosis Research Unit, IMIBIC/Reina Sofia University Hospital, University of Cordoba, Av. Menendez Pidal s/n. 14004, Córdoba, Spain. .,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain.
| | - Javier Delgado-Lista
- Lipids and Atherosclerosis Research Unit, IMIBIC/Reina Sofia University Hospital, University of Cordoba, Av. Menendez Pidal s/n. 14004, Córdoba, Spain. .,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain.
| | - Lorena González-Guardia
- Lipids and Atherosclerosis Research Unit, IMIBIC/Reina Sofia University Hospital, University of Cordoba, Av. Menendez Pidal s/n. 14004, Córdoba, Spain. .,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain.
| | - Elena M Yubero-Serrano
- Lipids and Atherosclerosis Research Unit, IMIBIC/Reina Sofia University Hospital, University of Cordoba, Av. Menendez Pidal s/n. 14004, Córdoba, Spain. .,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain.
| | - Francisco J Tinahones
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain. .,Endocrinology and Nutrition Service, Hospital Virgen de la Victoria, Málaga, Spain.
| | - María M Malagón
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain. .,Department of Cell Biology, Physiology, and Immunology, IMIBIC/Reina Sofia University Hospital/University of Córdoba, Cordoba, Spain.
| | - Francisco Pérez-Jiménez
- Lipids and Atherosclerosis Research Unit, IMIBIC/Reina Sofia University Hospital, University of Cordoba, Av. Menendez Pidal s/n. 14004, Córdoba, Spain. .,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain.
| | - Helen M Roche
- UCD Institute of Food & Health/UCD Conway Institute, School of Public Health and Population Sciences, University College Dublin, Dublin, Ireland.
| | - José López-Miranda
- Lipids and Atherosclerosis Research Unit, IMIBIC/Reina Sofia University Hospital, University of Cordoba, Av. Menendez Pidal s/n. 14004, Córdoba, Spain. .,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain.
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Montezano AC, Dulak-Lis M, Tsiropoulou S, Harvey A, Briones AM, Touyz RM. Oxidative Stress and Human Hypertension: Vascular Mechanisms, Biomarkers, and Novel Therapies. Can J Cardiol 2015; 31:631-41. [DOI: 10.1016/j.cjca.2015.02.008] [Citation(s) in RCA: 205] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 02/06/2015] [Accepted: 02/06/2015] [Indexed: 02/07/2023] Open
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20
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Telomere length differences between subcutaneous and visceral adipose tissue in humans. Biochem Biophys Res Commun 2015; 457:426-32. [DOI: 10.1016/j.bbrc.2014.12.122] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 12/18/2014] [Indexed: 11/20/2022]
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