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Sarkar S, Kumar R, Matson JB. Hydrogels for Gasotransmitter Delivery: Nitric Oxide, Carbon Monoxide, and Hydrogen Sulfide. Macromol Biosci 2024; 24:e2300138. [PMID: 37326828 PMCID: PMC11180494 DOI: 10.1002/mabi.202300138] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/08/2023] [Indexed: 06/17/2023]
Abstract
Gasotransmitters, gaseous signaling molecules including nitric oxide (NO), carbon monoxide (CO), and hydrogen sulfide (H2 S), maintain myriad physiological processes. Low levels of gasotransmitters are often associated with specific problems or diseases, so NO, CO, and H2 S hold potential in treating bacterial infections, chronic wounds, myocardial infarction, ischemia, and various other diseases. However, their clinical applications as therapeutic agents are limited due to their gaseous nature, short half-life, and broad physiological roles. One route toward the greater application of gasotransmitters in medicine is through localized delivery. Hydrogels are attractive biomedical materials for the controlled release of embedded therapeutics as they are typically biocompatible, possess high water content, have tunable mechanical properties, and are injectable in certain cases. Hydrogel-based gasotransmitter delivery systems began with NO, and hydrogels for CO and H2 S have appeared more recently. In this review, the biological importance of gasotransmitters is highlighted, and the fabrication of hydrogel materials is discussed, distinguishing between methods used to physically encapsulate small molecule gasotransmitter donor compounds or chemically tether them to a hydrogel scaffold. The release behavior and potential therapeutic applications of gasotransmitter-releasing hydrogels are also detailed. Finally, the authors envision the future of this field and describe challenges moving forward.
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Affiliation(s)
| | | | - John B. Matson
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, USA
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2
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Buch A, Ganz T, Wainstein J, Gilad S, Limor R, Shefer G, Boaz M, Stern N. Alcohol Drinks Induce Acute Lowering in Circulating l-Arginine in Obese and Type 2 Diabetic Subjects. J Med Food 2022; 25:675-682. [PMID: 35708634 DOI: 10.1089/jmf.2021.0045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Since low serum l-arginine (Arg) and high asymmetric dimethylarginine (ADMA) can predict microvascular complications in type 2 diabetes mellitus (T2DM), we tested whether Arg and ADMA are affected by diet and physical activity in overweight/obese and T2DM subjects. We tested the effects on serum Arg and ADMA of single loads of dextrose, protein, fat, or alcohol (∼300 calories each); one episode of physical exercise; and 12 weeks of standard lifestyle modification (dietary and physical activity counseling). Alcohol drink was followed by ∼30% lowering in Arg. Arg and ADMA increased after a protein load but remained stable after glucose or fat load or 30 min of treadmill walk. Following 12 weeks of lifestyle modification, ADMA declined only in subjects achieving weight loss >5%. In conclusion, alcohol is a previously unrecognized acute suppressor of serum Arg. Lifestyle modification lowers ADMA in subjects who achieve weight loss >5%. Clinical Trial Registration Number: NCT04406402.
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Affiliation(s)
- Assaf Buch
- The Institute of Endocrinology, Metabolism and Hypertension, Tel Aviv Sourasky Medical Center.,The Sagol Center for Epigenetics of Metabolism and Aging, The Institute of Endocrinology, Metabolism and Hypertension; Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Tali Ganz
- Diabetes Unit, E. Wolfson Medical Center, Holon, Israel
| | - Julio Wainstein
- Diabetes Unit, E. Wolfson Medical Center, Holon, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Suzan Gilad
- The Institute of Endocrinology, Metabolism and Hypertension, Tel Aviv Sourasky Medical Center
| | - Rona Limor
- The Institute of Endocrinology, Metabolism and Hypertension, Tel Aviv Sourasky Medical Center
| | - Gabi Shefer
- The Institute of Endocrinology, Metabolism and Hypertension, Tel Aviv Sourasky Medical Center.,The Sagol Center for Epigenetics of Metabolism and Aging, The Institute of Endocrinology, Metabolism and Hypertension; Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Mona Boaz
- Department of Nutrition Sciences, Ariel University, Ariel, Israel
| | - Naftali Stern
- The Sagol Center for Epigenetics of Metabolism and Aging, The Institute of Endocrinology, Metabolism and Hypertension; Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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3
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Zhang X, Liu W. Engineering Injectable Anti‐Inflammatory Hydrogels to Treat Acute Myocardial Infarction. ADVANCED NANOBIOMED RESEARCH 2022. [DOI: 10.1002/anbr.202200008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Xiaoping Zhang
- Tianjin Key Laboratory of Composite and Functional Materials School of Material Science and Engineering Tianjin University Tianjin 300350 China
| | - Wenguang Liu
- Tianjin Key Laboratory of Composite and Functional Materials School of Material Science and Engineering Tianjin University Tianjin 300350 China
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4
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Lan T, Zeng Q, Jiang W, Liu T, Xu W, Yao P, Lu W. Metabolism disorder promotes isoproterenol-induced myocardial injury in mice with high temperature and high humidity and high-fat diet. BMC Cardiovasc Disord 2022; 22:133. [PMID: 35350989 PMCID: PMC8966251 DOI: 10.1186/s12872-022-02583-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 03/22/2022] [Indexed: 12/14/2022] Open
Abstract
Background Isoproterenol (ISO), a synthetic on selective β-adrenergic agonist, provides a simple and non-invasive method for inducing myocardial injury with lower mortality and higher reproducibility. Phlegm-damp syndrome, as known as “Tanshi” in Chinese, is one of Traditional Chinese Medicine (TCM) syndrome differentiation, which plays an important role in the development of cardiovascular diseases. However, the underlying mechanism remains unknown. Methods In our present study, a myocardial injury mouse model was introduced by ISO administration combined with high temperature and high humidity and high-fat diet to simulate phlegm-damp syndrome. Nontargeted metabolomics with LC–MS/MS was adopted to reveal serum metabolism profile for elucidating the possible molecular mechanism. Results The results of our study showed that phlegm-damp syndrome promoted ISO-induced myocardial injury by aggravating left ventricular hypertrophy and fibrosis, and increasing cardiac index. Our study also confirmed the presence of specific metabolites and disturbed metabolic pathways by comparing ISO mice and Tanshi mice, mainly including glycerophospholipid metabolism, arginine–proline metabolism, and sphingolipid signaling pathway. The lysoPCs, PCs, SMs, Sphingosine, and L-Arginine were the main metabolites that showed a difference between ISO and Tanshi mice, which might be the result of the underlying mechanism in the promotion of ISO-induced myocardial injury in mice with high temperature and high humidity and high-fat diet. Conclusion Our current study provides new insights into contribution of metabolism disorder in promotion of ISO-induced myocardial injury in mice with high temperature and high humidity and high-fat diet, and new targets for clinical diagnosis and pharmacologic treatment of cardiovascular disease with phlegm-damp syndrome. Supplementary Information The online version contains supplementary material available at 10.1186/s12872-022-02583-z.
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Affiliation(s)
- Taohua Lan
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510020, People's Republic of China.,Guangdong Provincial Key Laboratory of Chinese Medicine for Prevention and Treatment of Refractory Chronic Diseases, Guangzhou, 510020, People's Republic of China.,Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510020, People's Republic of China.,Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, 510020, People's Republic of China
| | - Qiaohuang Zeng
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510020, People's Republic of China.,Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, 510020, People's Republic of China
| | - Wei Jiang
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510020, People's Republic of China.,Guangdong Provincial Key Laboratory of Chinese Medicine for Prevention and Treatment of Refractory Chronic Diseases, Guangzhou, 510020, People's Republic of China.,Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510020, People's Republic of China.,Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, 510020, People's Republic of China
| | - Tong Liu
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510020, People's Republic of China.,Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, 510020, People's Republic of China
| | - Wenjing Xu
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510020, People's Republic of China.,Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, 510020, People's Republic of China
| | - Ping Yao
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510020, People's Republic of China.,Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, 510020, People's Republic of China
| | - Weihui Lu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510020, People's Republic of China. .,Guangdong Provincial Key Laboratory of Chinese Medicine for Prevention and Treatment of Refractory Chronic Diseases, Guangzhou, 510020, People's Republic of China. .,Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510020, People's Republic of China. .,Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, 510020, People's Republic of China. .,Department of Cardiology, Guangdong Provincial Hospital of Chinese Medicine, No. 111, Dade Road, Yuexiu District, Guangzhou, 510020, People's Republic of China.
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5
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Werdyani S, Liu M, Zhang H, Sun G, Furey A, Randell EW, Rahman P, Zhai G. Endotypes of primary osteoarthritis identified by plasma metabolomics analysis. Rheumatology (Oxford) 2021; 60:2735-2744. [PMID: 33159799 PMCID: PMC8213424 DOI: 10.1093/rheumatology/keaa693] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 09/14/2020] [Indexed: 01/16/2023] Open
Abstract
OBJECTIVE To identify endotypes of osteoarthritis (OA) by a metabolomics analysis. METHODS Study participants included hip/knee OA patients and controls. Fasting plasma samples were metabolomically profiled. Common factor analysis and K-means clustering were applied to the metabolomics data to identify the endotypes of OA patients. Logistic regression was utilized to identify the most significant metabolites contributing to the endotypes. Clinical and epidemiological factors were examined in relation to the identified OA endotypes. RESULTS Six hundred and fifteen primary OA patients and 237 controls were included. Among the 186 metabolites measured, 162 passed the quality control analysis. The 615 OA patients were classified in three clusters (A, 66; B, 200; and C, 349). Patients in cluster A had a significantly higher concentration of butyrylcarnitine (C4) than other clusters and controls (all P < 0.0002). Elevated C4 is thought to be related to muscle weakness and wasting. Patients in cluster B had a significantly lower arginine concentration than other clusters and controls (all P < 7.98 × 10-11). Cluster C patients had a significantly lower concentration of lysophosphatidylcholine (with palmitic acid), which is a pro-inflammatory bioactive compound, than other clusters and controls (P < 3.79 × 10-6). Further, cluster A had a higher BMI and prevalence of diabetes than other clusters (all P ≤ 0.0009), and also a higher prevalence of coronary heart disease than cluster C (P = 0.04). Cluster B had a higher prevalence of coronary heart disease than cluster C (P = 0.003) whereas cluster C had a higher prevalence of osteoporosis (P = 0.009). CONCLUSION Our data suggest three possible clinically actionable endotypes in primary OA: muscle weakness, arginine deficit and low inflammatory OA.
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Affiliation(s)
- Salem Werdyani
- Division of Biomedical Sciences (Genetics), Faculty of Medicine, Memorial University of Newfoundland, St John’s, NL, Canada
| | - Ming Liu
- Division of Biomedical Sciences (Genetics), Faculty of Medicine, Memorial University of Newfoundland, St John’s, NL, Canada
| | - Hongwei Zhang
- Discipline of Medicine, Faculty of Medicine, Memorial University of Newfoundland, St John’s, NL, Canada
| | - Guang Sun
- Discipline of Medicine, Faculty of Medicine, Memorial University of Newfoundland, St John’s, NL, Canada
| | - Andrew Furey
- Discipline of Surgery, Faculty of Medicine, Memorial University of Newfoundland, St John’s, NL, Canada
| | - Edward W Randell
- Department of Laboratory Medicine, Faculty of Medicine, Memorial University of Newfoundland, St John’s, NL, Canada
| | - Proton Rahman
- Discipline of Medicine, Faculty of Medicine, Memorial University of Newfoundland, St John’s, NL, Canada
| | - Guangju Zhai
- Division of Biomedical Sciences (Genetics), Faculty of Medicine, Memorial University of Newfoundland, St John’s, NL, Canada
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Salmani M, Alipoor E, Navid H, Farahbakhsh P, Yaseri M, Imani H. Effect of l-arginine on cardiac reverse remodeling and quality of life in patients with heart failure. Clin Nutr 2021; 40:3037-3044. [PMID: 33610421 DOI: 10.1016/j.clnu.2021.01.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 01/14/2021] [Accepted: 01/29/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND & AIMS Heart failure (HF), as a major cardiac disease, is associated with considerable mortality, morbidities and poor quality of life. The aim of this study was to investigate the effect of l-arginine supplementation on cardiac outcomes and quality of life in patients with ischemic HF. METHODS This double-blind randomized controlled clinical trial was conducted in 50 patients with ischemic HF. Patients were randomly assigned to receive either 3 gr/d l-arginine or placebo, for 10 weeks. Cardiac function (based on echocardiography and six-minute walk test), blood pressure, and quality of life (based on the Minnesota living with heart failure questionnaire) were assessed. RESULTS The results showed significant improvements in ejection fraction (-6.5 ± 8.7 vs. -0.7 ± 7.8%, P = 0.037), left ventricular function (P = 0.043), diastolic dysfunction (P = 0.01) and marginally improvement in changes of left ventricular dimension during diastole (LVDd) (4 ± 6 vs. 0.3 ± 6.9 mm, P = 0.065) in the l-arginine compared to the placebo group. At the end of the study, physical aspect (5.7 ± 3.3 vs. 1.2 ± 6.1, P = 0.002) and total score (10 ± 6.7 vs. 4.1 ± 9.4, P = 0.011) of quality of life improved significantly in the l-arginine compared with the placebo group. Additionally, pre-to post-values of diastolic blood pressure, mean arterial pressure, LVDd, LV ejection fraction, left ventricular function, diastolic dysfunction as well as physical and total scores of quality of life improved significantly within the intervention, but not the placebo, group (all P < 0.05). CONCLUSION This study showed that 3 gr/d l-arginine supplementation for 10 weeks could improve cardiac recovery and function, and quality of life in patients with HF. This study was registered at the Iranian Clinical Trial Registration Center (www.irct.ir) with IRCT20170202032367N4 code.
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Affiliation(s)
- Mahnaz Salmani
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Alipoor
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Hossein Navid
- Department of Heart Failure and Heart Transplantation, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Payam Farahbakhsh
- Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Yaseri
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Hossein Imani
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.
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7
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L-Arginine Improves Endurance to High-Intensity Interval Exercises in Overweight Men. Int J Sport Nutr Exerc Metab 2020; 31:46-54. [PMID: 33260139 DOI: 10.1123/ijsnem.2020-0054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 09/02/2020] [Accepted: 09/24/2020] [Indexed: 11/18/2022]
Abstract
The effects of acute consumption of L-Arginine (L-Arg) in healthy young individuals are not clearly defined, and no studies on the effects of L-Arg in individuals with abnormal body mass index undertaking strenuous exercise exist. Thus, we examined whether supplementation with L-Arg diminishes cardiopulmonary exercise testing responses, such as ventilation (VE), VE/VCO2, oxygen uptake (VO2), and heart rate, in response to an acute session of high-intensity interval exercise (HIIE) in overweight men. A double-blind, randomized crossover design was used to study 30 overweight men (age, 26.5 ± 2.2 years; body weight, 88.2 ± 5.3 kilogram; body mass index, 28.0 ± 1.4 kg/m2). Participants first completed a ramped-treadmill exercise protocol to determine VO2max velocity (vVO2max), after which they participated in two sessions of HIIE. Participants were randomly assigned to receive either 6 g of L-Arg or placebo supplements. The HIIE treadmill running protocol consisted of 12 trials, including exercise at 100% of vVO2max for 1 min interspersed with recovery intervals of 40% of vVO2max for 2 min. Measurements of VO2 (ml·kg-1·min-1), VE (L/min), heart rate (beat per min), and VE/VCO2 were obtained. Supplementation with L-Arg significantly decreased all cardiorespiratory responses during HIIE (placebo+HIIE vs. L-Arg+HIIE for each measurement: VE [80.9 ± 4.3 L/min vs. 74.6 ± 3.5 L/min, p < .05, ES = 1.61], VE/VCO2 [26.4 ± 1.3 vs. 24.4 ± 1.0, p < .05, ES = 1.8], VO2 [26.4 ± 0.8 ml·kg-1·min-1 vs. 24.4 ± 0.9 ml·kg-1·min-1, p < .05, ES = 2.2], and heart rate [159.7 ± 6.3 beats/min vs. 155.0 ± 3.7 beats/min, p < .05, d = 0.89]). The authors conclude consuming L-Arg before HIIE can alleviate the excessive physiological strain resulting from HIIE and help to increase exercise tolerance in participants with a higher body mass index who may need to exercise on a regular basis for extended periods to improve their health.
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Martinez PJ, Agudiez M, Molero D, Martin-Lorenzo M, Baldan-Martin M, Santiago-Hernandez A, García-Segura JM, Madruga F, Cabrera M, Calvo E, Ruiz-Hurtado G, Barderas MG, Vivanco F, Ruilope LM, Alvarez-Llamas G. Urinary metabolic signatures reflect cardiovascular risk in the young, middle-aged, and elderly populations. J Mol Med (Berl) 2020; 98:1603-1613. [PMID: 32914213 PMCID: PMC7591416 DOI: 10.1007/s00109-020-01976-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/10/2020] [Accepted: 09/03/2020] [Indexed: 01/09/2023]
Abstract
The predictive value of traditional cardiovascular risk estimators is limited, and young and elderly populations are particularly underrepresented. We aimed to investigate the urine metabolome and its association with cardiovascular risk to identify novel markers that might complement current estimators based on age. Urine samples were collected from 234 subjects categorized into three age-grouped cohorts: 30-50 years (cohort I, young), 50-70 years (cohort II, middle-aged), and > 70 years (cohort III, elderly). Each cohort was further classified into three groups: (a) control, (b) individuals with cardiovascular risk factors, and (c) those who had a previous cardiovascular event. Novel urinary metabolites linked to cardiovascular risk were identified by nuclear magnetic resonance in cohort I and then evaluated by target mass spectrometry quantification in all cohorts. A previously identified metabolic fingerprint associated with atherosclerosis was also analyzed and its potential risk estimation investigated in the three aged cohorts. Three different metabolic signatures were identified according to age: 2-hydroxybutyrate, gamma-aminobutyric acid, hypoxanthine, guanidoacetate, oxaloacetate, and serine in young adults; citrate, cyclohexanol, glutamine, lysine, pantothenate, pipecolate, threonine, and tyramine shared by middle-aged and elderly adults; and trimethylamine N-oxide and glucuronate associated with cardiovascular risk in all three cohorts. The urinary metabolome contains a metabolic signature of cardiovascular risk that differs across age groups. These signatures might serve to complement existing algorithms and improve the accuracy of cardiovascular risk prediction for personalized prevention. KEY MESSAGES: • Cardiovascular risk in the young and elderly is underestimated. • The urinary metabolome reflects cardiovascular risk across all age groups. • Six metabolites constitute a metabolic signature of cardiovascular risk in young adults. • Middle-aged and elderly adults share a cardiovascular risk metabolic signature. • TMAO and glucuronate levels reflect cardiovascular risk across all age groups.
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Affiliation(s)
- Paula J Martinez
- Department of Immunology, Immunoallergy and Proteomics Laboratory, IIS-Fundación Jiménez Díaz, UAM, Avenida Reyes Católicos 2, 28040, Madrid, Spain
| | - Marta Agudiez
- Department of Immunology, Immunoallergy and Proteomics Laboratory, IIS-Fundación Jiménez Díaz, UAM, Avenida Reyes Católicos 2, 28040, Madrid, Spain
| | - Dolores Molero
- CAI-RMN, Universidad Complutense de Madrid, Madrid, Spain
| | - Marta Martin-Lorenzo
- Department of Immunology, Immunoallergy and Proteomics Laboratory, IIS-Fundación Jiménez Díaz, UAM, Avenida Reyes Católicos 2, 28040, Madrid, Spain
| | | | - Aranzazu Santiago-Hernandez
- Department of Immunology, Immunoallergy and Proteomics Laboratory, IIS-Fundación Jiménez Díaz, UAM, Avenida Reyes Católicos 2, 28040, Madrid, Spain
| | - Juan Manuel García-Segura
- CAI-RMN, Universidad Complutense de Madrid, Madrid, Spain
- Department of Biochemistry and Molecular Biology I, Universidad Complutense, Madrid, Spain
| | - Felipe Madruga
- Departament of Geriatrics, Hospital Virgen del Valle, SESCAM, Toledo, Spain
| | | | | | - Gema Ruiz-Hurtado
- Cardiorenal Translational Laboratory, Instituto de Investigación I+12, Hospital Universitario 12 de Octubre, Madrid, Spain
- CIBER-CV, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Maria G Barderas
- Department of Vascular Physiopathology, Hospital Nacional de Parapléjicos SESCAM, Toledo, Spain
| | - Fernando Vivanco
- Department of Immunology, Immunoallergy and Proteomics Laboratory, IIS-Fundación Jiménez Díaz, UAM, Avenida Reyes Católicos 2, 28040, Madrid, Spain
- Department of Biochemistry and Molecular Biology I, Universidad Complutense, Madrid, Spain
| | - Luis M Ruilope
- Cardiorenal Translational Laboratory, Instituto de Investigación I+12, Hospital Universitario 12 de Octubre, Madrid, Spain
- CIBER-CV, Hospital Universitario 12 de Octubre, Madrid, Spain
- School of Doctoral Studies and Research, Universidad Europea de Madrid, Madrid, Spain
| | - Gloria Alvarez-Llamas
- Department of Immunology, Immunoallergy and Proteomics Laboratory, IIS-Fundación Jiménez Díaz, UAM, Avenida Reyes Católicos 2, 28040, Madrid, Spain.
- REDINREN, Madrid, Spain.
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Vong LB, Trinh NT, Nagasaki Y. Design of amino acid-based self-assembled nano-drugs for therapeutic applications. J Control Release 2020; 326:140-149. [DOI: 10.1016/j.jconrel.2020.06.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 06/06/2020] [Accepted: 06/09/2020] [Indexed: 12/11/2022]
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10
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Cziráki A, Lenkey Z, Sulyok E, Szokodi I, Koller A. L-Arginine-Nitric Oxide-Asymmetric Dimethylarginine Pathway and the Coronary Circulation: Translation of Basic Science Results to Clinical Practice. Front Pharmacol 2020; 11:569914. [PMID: 33117166 PMCID: PMC7550781 DOI: 10.3389/fphar.2020.569914] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 09/03/2020] [Indexed: 12/16/2022] Open
Abstract
By 1980, it was thought that we already knew most of the major mechanisms regulating vascular tone. However, after the somewhat serendipity discovery that endothelium is involved in mediation of relaxation to acetylcholine, a whole new world opened up and we had to rewrite our concept regarding vascular function and its regulation (not to mention many other fields). The new player was an endothelium derived relaxing factor, which molecular constitution has been identified to be nitric oxide (NO). This review summarizes the major molecular steps concerning how NO is synthetized from L-arginine. Also, the fate of L-arginine is described via the arginase and methylation pathways; both of them are affecting substantially the level and efficacy of NO. In vitro and in vivo effects of L-arginine are summarized and controversial clinical findings are discussed. On the basis of the use of methylated L-arginines, the vasomotor effects of endothelial NO released to agonists and increases in flow/wall shear stress (a major biological stimulus) is summarized. In this review the role of NO in the regulation of coronary vascular resistance, hence blood flow, is delineated and the somewhat questionable clinical use of NO donors is discussed. We made an attempt to summarize the biosynthesis, role, and molecular mechanisms of endogenously produced methylated L-arginine, asymmetric dimethylarginine (ADMA) in modulating vascular resistance, affecting the function of the heart. Additionally, the relationship between ADMA level and various cardiovascular diseases is described, such as atherosclerosis, coronary artery disease (CAD), ischemia/reperfusion injuries, and different types of coronary revascularization. A novel aspect of coronary vasomotor regulation is identified in which the pericardial fluid ADMA and endothelin play putative roles. Finally, some of the open possibilities for future research on L-arginine-NO-ADMA signaling are highlighted.
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Affiliation(s)
- Attila Cziráki
- Medical School, Heart Institute, University of Pécs, Pécs, Hungary.,Szentágothai Research Centre, University of Pécs, Pécs, Hungary
| | - Zsófia Lenkey
- Medical School, Heart Institute, University of Pécs, Pécs, Hungary
| | - Endre Sulyok
- Institute of Public Health and Health Promotion, University of Pécs, Pécs, Hungary
| | - István Szokodi
- Medical School, Heart Institute, University of Pécs, Pécs, Hungary.,Szentágothai Research Centre, University of Pécs, Pécs, Hungary
| | - Akos Koller
- Department of Morphology and Physiology, Faculty of Health Sciences, Semmelweis University, Budapest, Hungary.,Research Center for Sports Physiology, University of Physical Education, Budapest, Hungary.,Department of Physiology, New York Medical College, Valhalla, NY, United States
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11
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Zaric BL, Radovanovic JN, Gluvic Z, Stewart AJ, Essack M, Motwalli O, Gojobori T, Isenovic ER. Atherosclerosis Linked to Aberrant Amino Acid Metabolism and Immunosuppressive Amino Acid Catabolizing Enzymes. Front Immunol 2020; 11:551758. [PMID: 33117340 PMCID: PMC7549398 DOI: 10.3389/fimmu.2020.551758] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 08/25/2020] [Indexed: 02/05/2023] Open
Abstract
Cardiovascular disease is the leading global health concern and responsible for more deaths worldwide than any other type of disorder. Atherosclerosis is a chronic inflammatory disease in the arterial wall, which underpins several types of cardiovascular disease. It has emerged that a strong relationship exists between alterations in amino acid (AA) metabolism and the development of atherosclerosis. Recent studies have reported positive correlations between levels of branched-chain amino acids (BCAAs) such as leucine, valine, and isoleucine in plasma and the occurrence of metabolic disturbances. Elevated serum levels of BCAAs indicate a high cardiometabolic risk. Thus, BCAAs may also impact atherosclerosis prevention and offer a novel therapeutic strategy for specific individuals at risk of coronary events. The metabolism of AAs, such as L-arginine, homoarginine, and L-tryptophan, is recognized as a critical regulator of vascular homeostasis. Dietary intake of homoarginine, taurine, and glycine can improve atherosclerosis by endothelium remodeling. Available data also suggest that the regulation of AA metabolism by indoleamine 2,3-dioxygenase (IDO) and arginases 1 and 2 are mediated through various immunological signals and that immunosuppressive AA metabolizing enzymes are promising therapeutic targets against atherosclerosis. Further clinical studies and basic studies that make use of animal models are required. Here we review recent data examining links between AA metabolism and the development of atherosclerosis.
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Affiliation(s)
- Bozidarka L. Zaric
- Department of Radiobiology and Molecular Genetics, “VINČA” Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Jelena N. Radovanovic
- Department of Radiobiology and Molecular Genetics, “VINČA” Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Zoran Gluvic
- Department of Endocrinology and Diabetes, Faculty of Medicine, University Clinical-Hospital Centre Zemun-Belgrade, University of Belgrade, Belgrade, Serbia
| | - Alan J. Stewart
- School of Medicine, University of St Andrews, St Andrews, United Kingdom
| | - Magbubah Essack
- Computer, Electrical and Mathematical Sciences and Engineering Division (CEMSE), Computational Bioscience Research Center, Computer (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Olaa Motwalli
- College of Computing and Informatics, Saudi Electronic University (SEU), Medina, Saudi Arabia
| | - Takashi Gojobori
- Computer, Electrical and Mathematical Sciences and Engineering Division (CEMSE), Computational Bioscience Research Center, Computer (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Biological and Environmental Sciences and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Esma R. Isenovic
- Department of Radiobiology and Molecular Genetics, “VINČA” Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
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12
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Demchenko SA, Koklin IS, Koklina NY. Role of Arginase 2 as a potential pharmacological target for the creation of new drugs to correct cardiovascular diseases. RESEARCH RESULTS IN PHARMACOLOGY 2020. [DOI: 10.3897/rrpharmacology.6.50942] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Introduction: The review provides relevant information about arginase 2, the role of this enzyme in the formation of endothelial dysfunction and, as a consequence, the development of cardiovascular diseases.
History of the discovery of arginase and its functions: The discovery of arginase took place long before its active study as a substance that affects the formation of endothelial dysfunction.
Role of arginase 2 in the development of a number of cardiovascular diseases: The role of NO synthase and arginase 2 in the formation of oxidative stress is determined. The pathophysiological mechanisms of the development of a number of cardiovascular diseases, such as coronary heart disease, atherosclerosis, and aortic aneurysm, are described. The modern possibilities of treatment of endothelial dysfunction in the pathology of the cardiovascular system and the possibility of creation of new drugs are considered. An increase in the activity of arginase 2 was proven to occur in the case of the development of coronary heart disease (CHD), hypertension, type II diabetes mellitus, hypercholesterolemia, as well as in the process of aging. According to the WHO, coronary heart disease and apoplectic attack have topped the list of causes of death worldwide over the past 15 years.
Arginase 2 as a potential pharmacological target: The purpose of this literature review is to determine the possibilities of use of arginase 2 as a new target for the pharmacological correction of cardiovascular diseases.
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Hezaveh ZS, Sikaroudi MK, Vafa M, Clayton ZS, Soltani S. Effect of egg consumption on inflammatory markers: a systematic review and meta-analysis of randomized controlled clinical trials. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:6663-6670. [PMID: 31259415 PMCID: PMC7189602 DOI: 10.1002/jsfa.9903] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 05/24/2019] [Accepted: 06/03/2019] [Indexed: 05/12/2023]
Abstract
There is little evidence about whether eggs affect inflammation. The aim of this meta-analysis was to explore the effects of egg consumption on inflammation. A systematic search of online databases (Institute for Scientific Information (ISI), Scopus, Ovid, PubMed, Cochrane) was used to gather clinical trials that assessed the effect of egg consumption on circulating inflammatory biomarkers. Using a random-effects model, pooled weighted mean differences (WMD) and corresponding standard deviations (SD) were calculated. Of the 21 eligible studies found, nine trials were eligible for analysis. Eight trials assessed high-sensitivity C-reactive protein (hs-CRP), four trials assessed interleukin-6 (IL-6), and five trials assessed tumor necrosis factor-alpha (TNF-α). Egg consumption did not affect hs-CRP (WMD 0.24 mg/L; 95% CI: -0.43, 0.90; I2 = 53.8; P = 0.48), IL-6 (WMD 0.20 pg/mL; 95% CI: -0.71, 1.11; I2 = 69.3; P = 0.50), and TNF-α (WMD: -0.38 pg/mL; 95% CI: -0.87, 0.10; I2 = 0.00; P = 0.12) relative to controls. Overall, this meta-analysis revealed that egg consumption had no significant effect on serum biomarkers of inflammation in adults. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Zohreh Sajadi Hezaveh
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | | | - Mohammadreza Vafa
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | | | - Sepideh Soltani
- Department of Nutrition, Faculty of Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Yazd Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Correspondence to: S Soltani, Yazd Cardiovascular Research Center, Shahid Sadoughi University ofMedical Sciences, Yazd, Iran.
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Piccirillo F, Carpenito M, Verolino G, Chello C, Nusca A, Lusini M, Spadaccio C, Nappi F, Di Sciascio G, Nenna A. Changes of the coronary arteries and cardiac microvasculature with aging: Implications for translational research and clinical practice. Mech Ageing Dev 2019; 184:111161. [PMID: 31647940 DOI: 10.1016/j.mad.2019.111161] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 10/09/2019] [Accepted: 10/14/2019] [Indexed: 12/28/2022]
Abstract
Aging results in functional and structural changes in the cardiovascular system, translating into a progressive increase of mechanical vessel stiffness, due to a combination of changes in micro-RNA expression patterns, autophagy, arterial calcification, smooth muscle cell migration and proliferation. The two pivotal mechanisms of aging-related endothelial dysfunction are oxidative stress and inflammation, even in the absence of clinical disease. A comprehensive understanding of the aging process is emerging as a primary concern in literature, as vascular aging has recently become a target for prevention and treatment of cardiovascular disease. Change of life-style, diet, antioxidant regimens, anti-inflammatory treatments, senolytic drugs counteract the pro-aging pathways or target senescent cells modulating their detrimental effects. Such therapies aim to reduce the ineluctable burden of age and contrast aging-associated cardiovascular dysfunction. This narrative review intends to summarize the macrovascular and microvascular changes related with aging, as a better understanding of the pathways leading to arterial aging may contribute to design new mechanism-based therapeutic approaches to attenuate the features of vascular senescence and its clinical impact on the cardiovascular system.
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Affiliation(s)
| | | | | | - Camilla Chello
- Dermatology, Università "La Sapienza" di Roma, Rome, Italy
| | | | - Mario Lusini
- Cardiovascular surgery, Università Campus Bio-Medico di Roma, Rome, Italy
| | | | - Francesco Nappi
- Cardiac surgery, Centre Cardiologique du Nord de Saint Denis, Paris, France
| | | | - Antonio Nenna
- Cardiovascular surgery, Università Campus Bio-Medico di Roma, Rome, Italy.
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L-arginine supplementation lowers blood pressure, protein excretion and plasma lipid profile in experimental salt-induced hypertension in pregnancy: Relevance to preeclampsia. PATHOPHYSIOLOGY 2019; 26:191-197. [DOI: 10.1016/j.pathophys.2019.02.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/08/2019] [Accepted: 02/12/2019] [Indexed: 12/18/2022] Open
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Abstract
Heart disease is the leading cause of death among women in the industrialized world. However, women after myocardial infarctions (MIs) are less likely to receive preventive medications or revascularization and as many as 47% experience heart failure, stroke or die within 5 years. Premenopausal women with MIs frequently have coronary plaque erosions or dissections. Women under 50 years with angina and nonobstructive epicardial coronary artery disease often have coronary microvascular dysfunction (CMD) with reductions in coronary flow reserve that may require nontraditional therapies. In women with coronary artery disease treated with stents, the 3-year incidence of recurrent MI or death is 9.2%. Coronary bypass surgery operative mortality averages 4.6% for women compared with 2.4% in men. Addition of internal mammary artery and radial artery coronary grafts in women does not increase operative survival but improves 5-year outcome to greater than 80%.
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Ahmadizad S, Daraei A, Bassami M, Rahmani H. Acute L-Arginine supplementation does not affect red blood cell aggregation and deformability during high intensity interval exercise in healthy men. Clin Hemorheol Microcirc 2018; 71:215-223. [PMID: 30584131 DOI: 10.3233/ch-189413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND L-Arginine, the precursor of NO might be involved in improving the cardiovascular disorders via regulation of functional properties of erythrocytes. OBJECTIVE This study investigated the effects of L-Arginine supplementation on responses of red blood cell (RBC) properties to high intensity interval exercise (HIIE). METHODS Ten overweight healthy men participated voluntarily in the study and performed two HIIE trials with and without L-Arginine in two separate weeks. The HIIE protocol included 12 intervals of 3-min encompassed 1-min running at 100% of vVO2max and 2-min active recovery at 40% of vVO2max. Three blood samples were taken before and after supplementation, and immediately after exercise; and were used to measure red blood cell properties. RESULTS The HIIE protocol increased hematocrit, hemoglobin and lactate significantly (P < 0.05), but had no significant effect on RBC aggregation, RBC deformability, and fibrinogen concentration. When data were compared for two trials no significant differences between the responses of RBC properties to two HIIE protocols were detected (P > 0.05), whereas the increases in lactate concentration following HIIE was significantly lower in L-Arginine than placebo trial (P < 0.05). CONCLUSIONS It is concluded that L-Arginine consumption prior to HIIE does not lead to any improvement in RBC properties during HIIE in overweight healthy men.
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Affiliation(s)
- Sajad Ahmadizad
- Department of Biological Sciences in Sport and Health, Faculty of Sport Sciences and Health, Shahid Beheshti University, Tehran, Iran
| | - Ali Daraei
- Department of Biological Sciences in Sport and Health, Faculty of Sport Sciences and Health, Shahid Beheshti University, Tehran, Iran
| | - Minoo Bassami
- Faculty of Physical Education and Sports Sciences, Allameh Tabataba'i University, Tehran, Iran
| | - Hiwa Rahmani
- Department of Biological Sciences in Sport and Health, Faculty of Sport Sciences and Health, Shahid Beheshti University, Tehran, Iran
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18
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Tykhomyrov AA, Nedzvetsky VS, Zabida AA, Ağca CA, Kuryata OV. l-Arginine treatment improves angiogenic response and reduces matrix metalloproteinase activity in chronic heart failure patients with coronary artery disease. PHARMANUTRITION 2018. [DOI: 10.1016/j.phanu.2018.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Semantic Multi-Classifier Systems Identify Predictive Processes in Heart Failure Models across Species. Biomolecules 2018; 8:biom8040158. [PMID: 30486323 PMCID: PMC6315933 DOI: 10.3390/biom8040158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 11/21/2018] [Accepted: 11/21/2018] [Indexed: 11/29/2022] Open
Abstract
Genetic model organisms have the potential of removing blind spots from the underlying gene regulatory networks of human diseases. Allowing analyses under experimental conditions they complement the insights gained from observational data. An inevitable requirement for a successful trans-species transfer is an abstract but precise high-level characterization of experimental findings. In this work, we provide a large-scale analysis of seven weak contractility/heart failure genotypes of the model organism zebrafish which all share a weak contractility phenotype. In supervised classification experiments, we screen for discriminative patterns that distinguish between observable phenotypes (homozygous mutant individuals) as well as wild-type (homozygous wild-types) and carriers (heterozygous individuals). As the method of choice we use semantic multi-classifier systems, a knowledge-based approach which constructs hypotheses from a predefined vocabulary of high-level terms (e.g., Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways or Gene Ontology (GO) terms). Evaluating these models leads to a compact description of the underlying processes and guides the screening for new molecular markers of heart failure. Furthermore, we were able to independently corroborate the identified processes in Wistar rats.
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Vong LB, Bui TQ, Tomita T, Sakamoto H, Hiramatsu Y, Nagasaki Y. Novel angiogenesis therapeutics by redox injectable hydrogel - Regulation of local nitric oxide generation for effective cardiovascular therapy. Biomaterials 2018; 167:143-152. [DOI: 10.1016/j.biomaterials.2018.03.023] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 02/24/2018] [Accepted: 03/12/2018] [Indexed: 01/07/2023]
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Polis B, Samson AO. Arginase as a Potential Target in the Treatment of Alzheimer’s Disease. ACTA ACUST UNITED AC 2018. [DOI: 10.4236/aad.2018.74009] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Mirmiran P, Moghadam SK, Bahadoran Z, Ghasemi A, Azizi F. Dietary L-Arginine Intakes and the Risk of Metabolic Syndrome: A 6-Year Follow-Up in Tehran Lipid and Glucose Study. Prev Nutr Food Sci 2017; 22:263-270. [PMID: 29333377 PMCID: PMC5758088 DOI: 10.3746/pnf.2017.22.4.263] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 11/13/2017] [Indexed: 02/05/2023] Open
Abstract
This study was conducted to investigate whether regular dietary intake of L-arginine could affect the occurrence of metabolic syndrome (MetS). Eligible adult men and women (n=1,237), who participated in the Tehran Lipid and Glucose Study, were followed for a median of 6.3 years. Dietary intakes of L-arginine and serum nitrate and nitrite (NOx) concentration were assessed at baseline (2006~2008), and demographics, anthropometrics, and biochemical variables were evaluated at baseline and follow-up examinations. The occurrence of MetS was assessed in relation to total L-arginine, intakes of L-arginine from animal and plant sources, with adjustment of potential confounding variables. Participants who had higher intake of L-arginine also had higher serum NOx at baseline (35.0 vs. 30.5 μmol/L, P<0.05). After 6 years of follow-up, higher intakes of L-arginine from animal sources were accompanied with increased risk of MetS [odd ratios (OR)=1.49, 95% confidence interval (95% CI)=1.02~2.18]. Compared to the lowest, the highest intakes of L-arginine from plant sources were related to significantly reduced risk of MetS (OR=0.58, 95% CI=0.32~0.99). In conclusion, our findings suggest a potentially protective effect of plant derived L-arginine intakes against development of MetS and its phenotypes; moreover, higher intakes of L-arginine from animal sources could be a dietary risk factor for development of metabolic disorders.
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Affiliation(s)
- Parvin Mirmiran
- Nutrition and Endocrine Research, Shahid Beheshti University of Medical Sciences, Tehran 19839-63113, Iran
| | - Sajjad Khalili Moghadam
- Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran 19839-63113, Iran
| | - Zahra Bahadoran
- Nutrition and Endocrine Research, Shahid Beheshti University of Medical Sciences, Tehran 19839-63113, Iran
| | - Asghar Ghasemi
- Endocrine Physiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran 19839-63113, Iran
| | - Fereidoun Azizi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran 19839-63113, Iran
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Komalavilas P, Luo W, Guth CM, Jolayemi O, Bartelson RI, Cheung-Flynn J, Brophy CM. Vascular surgical stretch injury leads to activation of P2X7 receptors and impaired endothelial function. PLoS One 2017; 12:e0188069. [PMID: 29136654 PMCID: PMC5685620 DOI: 10.1371/journal.pone.0188069] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 10/31/2017] [Indexed: 12/17/2022] Open
Abstract
A viable vascular endothelial layer prevents vasomotor dysfunction, thrombosis, inflammation, and intimal hyperplasia. Injury to the endothelium occurs during harvest and “back table” preparation of human saphenous vein prior to implantation as an arterial bypass conduit. A subfailure overstretch model of rat aorta was used to show that subfailure stretch injury of vascular tissue leads to impaired endothelial-dependent relaxation. Stretch-induced impaired relaxation was mitigated by treatment with purinergic P2X7 receptor (P2X7R) inhibitors, brilliant blue FCF (FCF) and A740003, or apyrase, an enzyme that catalyzes the hydrolysis of ATP. Alternatively, treatment of rat aorta with exogenous ATP or 2’(3’)-O-(4-Benzoyl benzoyl)-ATP (BzATP) also impaired endothelial-dependent relaxation. Treatment of human saphenous vein endothelial cells (HSVEC) with exogenous ATP led to reduced nitric oxide production which was associated with increased phosphorylation of the stress activated protein kinase, p38 MAPK. ATP- stimulated p38 MAPK phosphorylation of HSVEC was inhibited by FCF and SB203580. Moreover, ATP inhibition of nitric oxide production in HSVEC was prevented by FCF, SB203580, L-arginine supplementation and arginase inhibition. Finally, L-arginine supplementation and arginase inhibition restored endothelial dependent relaxation after stretch injury of rat aorta. These results suggest that vascular stretch injury leads to ATP release, activation of P2X7R and p38 MAPK resulting in endothelial dysfunction due to arginase activation. Endothelial function can be restored in both ATP treated HSVEC and intact stretch injured rat aorta by P2X7 receptor inhibition with FCF or L-arginine supplementation, implicating straightforward therapeutic options for treatment of surgical vascular injury.
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Affiliation(s)
- Padmini Komalavilas
- Vanderbilt University Medical Center, Department of Surgery, Nashville, TN, United States of America
- VA Tennessee Valley Healthcare System, Nashville, TN, United States of America
- * E-mail:
| | - Weifeng Luo
- Vanderbilt University Medical Center, Department of Surgery, Nashville, TN, United States of America
| | - Christy M. Guth
- Vanderbilt University Medical Center, Department of Surgery, Nashville, TN, United States of America
| | - Olukemi Jolayemi
- Vanderbilt University Medical Center, Department of Surgery, Nashville, TN, United States of America
| | - Rachel I. Bartelson
- Vanderbilt University Medical Center, Department of Surgery, Nashville, TN, United States of America
| | - Joyce Cheung-Flynn
- Vanderbilt University Medical Center, Department of Surgery, Nashville, TN, United States of America
| | - Colleen M. Brophy
- Vanderbilt University Medical Center, Department of Surgery, Nashville, TN, United States of America
- VA Tennessee Valley Healthcare System, Nashville, TN, United States of America
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Rouhani MH, Rashidi-Pourfard N, Salehi-Abargouei A, Karimi M, Haghighatdoost F. Effects of Egg Consumption on Blood Lipids: A Systematic Review and Meta-Analysis of Randomized Clinical Trials. J Am Coll Nutr 2017; 37:99-110. [PMID: 29111915 DOI: 10.1080/07315724.2017.1366878] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND It is widely agreed that egg consumption only modestly influences serum lipid concentrations. However, there is no meta-analysis summarizing existing randomized controlled trials. OBJECTIVE The purpose of this study was to conduct a meta-analysis of published randomized controlled trials to explore the quantitative effect of egg consumption on serum lipid concentrations. DESIGN Online databases including MEDLINE, Proquest and Google Scholar were systematically searched. Studies that were published after 2000 and compared serum lipids concentrations in egg-consumers and non egg-consumers were included. The data were obtained from 28 studies. Weighted mean differences were calculated as the ultimate effect using random effects model. RESULTS Overall, egg consumption increased total cholesterol (TC) by 5.60 mg/dL (95% CI: 3.11, 8.09; P<0.0001), low density lipoprotein-cholesterol (LDL-C) by 5.55 mg/dL (95% CI: 3.14, 7.69; P<0.0001) and high density lipoprotein-cholesterol (HDL-C) by 2.13 mg/dL (95% CI: 1.10, 3.16; P<0.0001) compared with the control group. Heterogeneity found between studies was explained partly by study design and participant response to dietary cholesterol. No effect of increased egg consumption on LDL-C:HDL-C and TC:HDL-C ratios, and triglyceride (TG) concentrations were found. No association was observed between number of eggs consumed per day or study duration and any of the serum lipid markers. CONCLUSION Consumption of egg increases total cholesterol, LDL-C and HDL-C, but not LDL-C:HDL-C, TC:HDL-C and TG compared with low egg control diets. To assess the risk of coronary events, future studies should focus on the postprandial effect of egg consumption and effects on coronary risk.
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Affiliation(s)
- Mohammad Hossein Rouhani
- a Food Security Research Center, Isfahan University of Medical Sciences , Isfahan , Iran.,b Department of Community Nutrition , School of Nutrition and Food Science, Isfahan University of Medical Sciences , Isfahan , Iran
| | | | - Amin Salehi-Abargouei
- d Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences , Yazd , Iran.,e Department of Nutrition , Faculty of Health, Shahid Sadoughi University of Medical Sciences , Yazd , Iran
| | - Majid Karimi
- c Shahid Motahari Hospital , Fooladshahr , Isfahan , Iran
| | - Fahimeh Haghighatdoost
- a Food Security Research Center, Isfahan University of Medical Sciences , Isfahan , Iran.,b Department of Community Nutrition , School of Nutrition and Food Science, Isfahan University of Medical Sciences , Isfahan , Iran
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The Role of Nrf2 in Cardiovascular Function and Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:9237263. [PMID: 29104732 PMCID: PMC5618775 DOI: 10.1155/2017/9237263] [Citation(s) in RCA: 180] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 07/27/2017] [Indexed: 02/07/2023]
Abstract
Free radicals, reactive oxygen/nitrogen species (ROS/RNS), hydrogen sulphide, and hydrogen peroxide play an important role in both intracellular and intercellular signaling; however, their production and quenching need to be closely regulated to prevent cellular damage. An imbalance, due to exogenous sources of free radicals and chronic upregulation of endogenous production, contributes to many pathological conditions including cardiovascular disease and also more general processes involved in aging. Nuclear factor erythroid 2-like 2 (NFE2L2; commonly known as Nrf2) is a transcription factor that plays a major role in the dynamic regulation of a network of antioxidant and cytoprotective genes, through binding to and activating expression of promoters containing the antioxidant response element (ARE). Nrf2 activity is regulated by many mechanisms, suggesting that tight control is necessary for normal cell function and both hypoactivation and hyperactivation of Nrf2 are indicated in playing a role in different aspects of cardiovascular disease. Targeted activation of Nrf2 or downstream genes may prove to be a useful avenue in developing therapeutics to reduce the impact of cardiovascular disease. We will review the current status of Nrf2 and related signaling in cardiovascular disease and its relevance to current and potential treatment strategies.
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26
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Fadda LM, Attia HA, Al-Rasheed NM, Ali HM, Aldossari M. Attenuation of DNA damage and mRNA gene expression in hypoxic rats using natural antioxidants. J Biochem Mol Toxicol 2017; 31. [PMID: 28833918 DOI: 10.1002/jbt.21975] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 08/01/2017] [Indexed: 11/11/2022]
Abstract
This study aimed to explore the efficiency of carnosine (Cs) and/or l-arginine (Agn) in the downregulation of apoptotic and inflammatory molecule expression and DNA damage caused hepatic injury in response to sodium nitrite (Sd)-induced hypoxia in rats. Rats were injected with Sd; Agn or/and Cs were administrated prior to Sd intoxication. Sd significantly decreased hemoglobin concentration and Bcl-2 mRNA expression, while increased expressions of apoptotic markers (Bax and caspase), tumor necrosis factor-α, nuclear factor kappa B, and C-reactive protein and the oxidative DNA damage in hepatic tissue. Moreover, administration of Agn or/and Cs exhibited a modulation of the previous parameters. However, concurrent treatment with the forementioned antioxidants modulated these levels. It was concluded that the treatment with the combination of Agn and Cs was the most effective regimen in ameliorating Sd toxicity accompanied by hypoxic stress.
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Affiliation(s)
- Laila Mohamed Fadda
- Department of Pharmacology, Faculty of Pharmacy, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Hala A Attia
- Department of Pharmacology, Faculty of Pharmacy, King Saud University, Riyadh, Kingdom of Saudi Arabia.,Department of Biochemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Nouf Mohamed Al-Rasheed
- Department of Pharmacology, Faculty of Pharmacy, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Hanaa Mahmoud Ali
- Department of Genetics and Cytology, National Research Centre, Dokki, Egypt.,CommonFirst Year Deanship, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Manal Aldossari
- Department of Pharmacology, Faculty of Pharmacy, King Saud University, Riyadh, Kingdom of Saudi Arabia
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27
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Sun L, Liu J, Sun M, Lin L, Miao L, Ge Z, Yang B. Comprehensive metabonomic analysis of heart tissue from isoproterenol-induced myocardial infarction rat based on reversed-phase and hydrophilic interaction chromatography coupled to mass spectrometry. J Sep Sci 2017; 40:2198-2206. [PMID: 28371309 DOI: 10.1002/jssc.201601013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 03/03/2017] [Accepted: 03/17/2017] [Indexed: 01/04/2023]
Abstract
We aim to describe the metabonomic characteristics of myocardial infarction rats. High-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry was utilized to develop a metabonomic method of the heart homogenates of myocardial infarction rats. Hydrophilic interaction chromatography allows the analysis of high polar metabolites, providing complementary information to reversed-phase liquid chromatography. We combined reversed phase and hydrophilic interaction chromatographic separations to analyze 18 samples, ten from myocardial infarction rat hearts and eight from normal rat hearts. A total of 16 potential biomarkers in rat heart tissue were screened out, primarily related to oxidative stress, nitric oxide damage, taurine, and hypotaurine metabolism and sphingolipid metabolism. This research showed that a comprehensive metabonomic study is a useful tool to reveal the underlying mechanism of myocardial infarction.
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Affiliation(s)
- Lei Sun
- Xiyuan hospital, China Academy of Chinese Medical Sciences and Beijing key lab of TCM pharmacology, Beijing, China.,Beijing University of Chinese Medicine, Beijing, China
| | - Jianxun Liu
- Xiyuan hospital, China Academy of Chinese Medical Sciences and Beijing key lab of TCM pharmacology, Beijing, China
| | - Mingqian Sun
- Xiyuan hospital, China Academy of Chinese Medical Sciences and Beijing key lab of TCM pharmacology, Beijing, China
| | - Li Lin
- Xiyuan hospital, China Academy of Chinese Medical Sciences and Beijing key lab of TCM pharmacology, Beijing, China
| | - Lan Miao
- Xiyuan hospital, China Academy of Chinese Medical Sciences and Beijing key lab of TCM pharmacology, Beijing, China
| | - Zhengyan Ge
- Xiyuan hospital, China Academy of Chinese Medical Sciences and Beijing key lab of TCM pharmacology, Beijing, China
| | - Bin Yang
- Xiyuan hospital, China Academy of Chinese Medical Sciences and Beijing key lab of TCM pharmacology, Beijing, China
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Alinejad M, Motamedzadegan A, Rezaei M, Regenstein JM. The Impact of Drying Method on the Functional and Antioxidant Properties of Whitecheek Shark(Carcharhinus dussumieri) Protein Hydrolysates. J FOOD PROCESS PRES 2016. [DOI: 10.1111/jfpp.12972] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marjane Alinejad
- Department of Seafood Science and Technology, Faculty of Marine Sciences; Tarbiat Modares University; Nour Iran
| | - Ali Motamedzadegan
- Department of Food Science; Sari Agricultural Sciences and Natural Resources University; P.O. Box 578 Sari Iran
| | - Masoud Rezaei
- Department of Seafood Science and Technology, Faculty of Marine Sciences; Tarbiat Modares University; Nour Iran
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Wang W, Wang WH, Azadzoi KM, Dai P, Wang Q, Sun JB, Zhang WT, Shu Y, Yang JH, Yan Z. Alu RNA accumulation in hyperglycemia augments oxidative stress and impairs eNOS and SOD2 expression in endothelial cells. Mol Cell Endocrinol 2016; 426:91-100. [PMID: 26891959 DOI: 10.1016/j.mce.2016.02.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 02/04/2016] [Accepted: 02/11/2016] [Indexed: 11/16/2022]
Abstract
Endothelial dysfunction resulting from oxidative stress and inflammation plays a dominant role in hyperglycemia-induced vasculopathy. While double-stranded RNA (dsRNA) accumulates in redox and inflammatory conditions, its precise role in hyperglycemia-associated endothelial dysfunction remains unclear. This study aimed to investigate whether and how endogenous dsRNA contributes to endothelial dysfunction via oxidative stress. We used a dsRNA-specific antibody J2 to detect and immunoprecipitate cellular dsRNA. Acquired dsRNA was recognized by cDNA library construction and DNA sequencing. Quantitative PCR, ELISA and immunoassays were performed to identify changes induced by acquired dsRNA in primary human umbilical vein endothelial cells (HUVEC). Our data showed that endogenous dsRNA homologous to Alu Sc subfamily accumulated in hyperglycemic HUVEC. Comparing Alu-transfected HUVEC with high-glucose treated HUVEC, we found that Alu RNA elicited the production of reactive oxygen species (ROS) and up-regulated interleukin-1β (IL-1β) expression and secretion in a similar manner as high-glucose treatment. Moreover, Alu RNA impeded the expression of endothelial nitric oxide synthase (eNOS) and superoxide dismutase 2 (SOD2), increased ROS production and activated nuclear factor NFκB by chemically scavenging ROS and inactivation of NFκB. The repressed expression of eNOS and SOD2 resulted from Alu RNA-mediated negative regulatory mechanisms. Our study uncovered endogenous Alu RNA accumulation in hyperglycemic endothelial cells that provoked endothelial oxidative stress and dysfunction by suppressing SOD2 and eNOS expression at both transcription and translation levels via NFκB signaling pathway. These findings suggest a novel regulatory mechanism that involves endogenous dsRNA in endothelial oxidative stress and dysfunction.
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Affiliation(s)
- Wei Wang
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Wei-Hua Wang
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Kazem M Azadzoi
- Departments of Urology and Surgery, VA Boston Healthcare System, Boston University School of Medicine, Boston 510660, MA, USA
| | - Peng Dai
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Qin Wang
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Jian-Bin Sun
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Wen-Tao Zhang
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Yi Shu
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China
| | - Jing-Hua Yang
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China; Departments of Urology and Surgery, VA Boston Healthcare System, Boston University School of Medicine, Boston 510660, MA, USA.
| | - Zhen Yan
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, The Fourth Military Medical University, Xi'an 710032, China.
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Kim HJ, Son J, Jin E, Lee J, Park S. Effects of exercise and L-arginine intake on inflammation in aorta of high-fat diet induced obese rats. J Exerc Nutrition Biochem 2016; 20:36-40. [PMID: 27298811 PMCID: PMC4899898 DOI: 10.20463/jenb.2016.03.20.1.6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 02/25/2016] [Accepted: 03/14/2016] [Indexed: 01/22/2023] Open
Abstract
PURPOSE In the present study, we investigated the effect of exercise and arginine on the inflammatory makers and Cu-Mn superoxide dismutase (SOD) expression in the aortas of high-fat-induced obese rats. METHODS Fifty 6-month-old male Sprague-Dawley rats were randomly assigned as follows: HF-Con: high-fat diet, HF-Ex: high-fat diet and exercise, HF-Ex+A: high-fat diet and combined exercise and arginine, HF-A: high-fat diet and arginine. The high-fat diet was fed for 12 weeks following 1 week of environmental adaptation with mixed solid chow. The rats performed treadmill exercise 6 times per week for 12 weeks at20 m/min for 60 min. L-argininewas mixed with saline and orally administered at 150 mg/kg once a day. Expressions of inflammatory markers (including NF- κB, TNF-α, COX-2) and SOD were evaluated using western blotting. RESULTS NF-κB expression decreased significantly (p<0.05) in the HF-Ex group compared with HF-Con group, and we found additional effects(p<0.01) on NF-κB expression in HF-EX+A compared withHF-Ex. TNF-α expression decreased significantly (p<0.01) in HF-Ex, FH-Ex+A, and FH-A compared with HF-Con. In a similar trend with NF-κB expression, COX-2 expression decreased significantly in HF-Ex compared withHF-Con. In Cu-Mn SOD expression, there was no difference between HF and HF-Ex, but significant increases (p<0.01) inCu-Mn SOD werefound in HF-Ex+A and HF-A. CONCLUSION Based on our results, treatment that combines exercise and arginine might be effective for modulatingvascular inflammation and oxidative stress in obesity.
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Affiliation(s)
- Hee-jae Kim
- Physical Activity and Performance Institute (PAPI), Konkuk University, SeoulRepublic of Korea
| | - Junseok Son
- Health and Exercise Science, Institute of Sport Science, Seoul National University, SeoulRepublic of Korea
| | - Eunhee Jin
- Department of Sports Science, Sungkyunkwan University, SuwonRepublic of Korea
| | - Jin Lee
- Department of Anatomy and Cell Biology, College of Medicine, Han Yang University, SeoulRepublic of Korea
| | - Sok Park
- Department of Sports Leadership, Kwangwoon University, SeoulRepublic of Korea
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Bahadoran Z, Mirmiran P, Tahmasebinejad Z, Azizi F. Dietary L-arginine intake and the incidence of coronary heart disease: Tehran lipid and glucose study. Nutr Metab (Lond) 2016; 13:23. [PMID: 26985233 PMCID: PMC4793528 DOI: 10.1186/s12986-016-0084-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 03/09/2016] [Indexed: 12/19/2022] Open
Abstract
Background We investigated the association of regular dietary intake of L-arginine and both the incidence of coronary heart disease (CHD) and changes of blood pressure. Methods Eligible adults (n = 2284) who participated in the Tehran Lipid and Glucose Study were followed for a mean of 4.7 years. Dietary intake of L-arginine was assessed at baseline (2006–2008); biochemical variables were evaluated at baseline and the follow-up examination. Multivariate Cox proportional hazard regression models adjusted for potential confounders were used to estimate the risk of CHD across tertiles of L-arginine intake. Linear regression models were also used to indicate the association of L-arginine intake with changes of serum lipids and blood pressure during the follow-up. Results Mean age of participants (42.8 % men) was 38.2 ± 13.4, at baseline. During a mean 4.7 ± 1.4 y of follow-up, 57 participants experienced CHD events. A significant negative association was observed between plant-derived L-arginine intake and changes of both systolic and diastolic blood pressure, whereas animal-derived L-arginine intake was related to increased levels of diastolic blood pressure (P < 0.01). Participants in the 2nd tertile (1.45–1.78 g/d) had a significantly increased risk of CHD events compared to the participants in the 1st tertile (<1.45 g/d) (HR = 1.90, 95 % CI = 1.03–3.58). The risk of CHD had a decreasing trend across increasing plant-derived L-arginine intake (HR = 1.0, HR = 0.91, 95 % CI = 0.51–1.62, HR = 0.72, 95 % CI = 0.39–1.32, P for trend = 0.03). Conclusion Higher intake of plant derived L-arginine may have a protective effect whereas animal-derived L-arginine may be a risk factor for development of hypertension and CHD events.
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Affiliation(s)
- Zahra Bahadoran
- Student Research Office, Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Parvin Mirmiran
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran ; No. 24, Shahid-Erabi St., Yeman St., Velenjak, Tehran, Iran
| | - Zhaleh Tahmasebinejad
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fereidoun Azizi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Nitric oxide synthesis capacity, ambulatory blood pressure and end organ damage in a black and white population: the SABPA study. Amino Acids 2015; 48:801-810. [PMID: 26573539 DOI: 10.1007/s00726-015-2128-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 11/04/2015] [Indexed: 10/22/2022]
Abstract
Nitric oxide (NO) synthesis capacity is determined by the availability of substrate(s) such as L-arginine and the influence of nitric oxide synthase (NOS) inhibitors, asymmetric dimethylarginine (ADMA) and symmetric dimethylarginine (SDMA). These factors may be important in black South Africans with a very high prevalence of hypertension. We compared ambulatory blood pressure (BP), markers of end organ damage and NO synthesis capacity markers [L-arginine, L-homoarginine, L-citrulline, L-arginine:ADMA, ADMA, SDMA and dimethylarginine (DMA)], between black and white teachers (n = 390). Associations of nighttime BP and markers of end organ damage with NO synthesis capacity markers were also investigated. Although black men and women had higher BP and albumin-to-creatinine ratio (ACR) (all p < 0.001), they also had higher L-arginine, L-homoarginine, L-arginine:ADMA and lower SDMA and DMA levels (all p < 0.05). Only in white men ADMA concentrations associated positively with nighttime systolic blood pressure (R (2) = 0.20, β = 0.26, p = 0.009), nighttime diastolic blood pressure (R (2) = 0.23, β = 0.27, p = 0.007), carotid intima media thickness (cIMT) (R (2) = 0.36, β = 0.22, p = 0.008) and ACR (R (2) = 0.14, β = 0.32, p = 0.001). Our findings suggest that despite an adverse cardiovascular profile in blacks, their NO synthesis capacity profile seems favourable, and that other factors, such as NO inactivation, may prove to be more important.
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Oledzka E, Sawicka A, Sobczak M, Nalecz-Jawecki G, Skrzypczak A, Kolodziejski W. Prazosin-Conjugated Matrices Based on Biodegradable Polymers and α-Amino Acids--Synthesis, Characterization, and in Vitro Release Study. Molecules 2015; 20:14533-51. [PMID: 26274943 PMCID: PMC6332215 DOI: 10.3390/molecules200814533] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 07/24/2015] [Accepted: 08/05/2015] [Indexed: 11/16/2022] Open
Abstract
Novel and promising macromolecular conjugates of the α1-adrenergic blocker prazosin were directly synthesized by covalent incorporation of the drug to matrices composed of biodegradable polymers and α-amino acids for the development of a polymeric implantable drug delivery carrier. The cyto- and genotoxicity of the synthesized matrices were evaluated using a bacterial luminescence test, protozoan assay, and Salmonella typhimurium TA1535. A new urethane bond was formed between the hydroxyl end-groups of the synthesized polymer matrices and an amine group of prazosin, using 1,1'-carbonyldiimidazole (CDI) as a coupling agent. The structure of the polymeric conjugates was characterized by various spectroscopy techniques. A study of hydrogen nuclear magnetic resonance ((1)H-NMR) and differential scanning calorimetry (DSC) thermodiagrams indicated that the presence of prazosin pendant groups in the macromolecule structures increased the polymer's rigidity alongside increasing glass transition temperature. It has been found that the kinetic release of prazosin from the obtained macromolecular conjugates, tested in vitro under different conditions, is strongly dependent on the physicochemical properties of polymeric matrices. Furthermore, the presence of a urethane bond in the macromolecular conjugates allowed for obtaining a relatively controlled release profile of the drug. The obtained results confirm that the pharmacokinetics of prazosin might be improved through the synthesis of polymeric conjugates containing biomedical polymers and α-amino acids in the macromolecule.
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Affiliation(s)
- Ewa Oledzka
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy with the Laboratory Medicine Division, Medical University of Warsaw, Banacha 1, Warsaw 02-097, Poland.
| | - Anna Sawicka
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy with the Laboratory Medicine Division, Medical University of Warsaw, Banacha 1, Warsaw 02-097, Poland.
| | - Marcin Sobczak
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy with the Laboratory Medicine Division, Medical University of Warsaw, Banacha 1, Warsaw 02-097, Poland.
| | - Grzegorz Nalecz-Jawecki
- Department of Environmental Health Science, Faculty of Pharmacy with the Laboratory Medicine Division, Medical University of Warsaw, Banacha 1, Warsaw 02-097, Poland.
| | - Agata Skrzypczak
- Department of Environmental Health Science, Faculty of Pharmacy with the Laboratory Medicine Division, Medical University of Warsaw, Banacha 1, Warsaw 02-097, Poland.
| | - Waclaw Kolodziejski
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy with the Laboratory Medicine Division, Medical University of Warsaw, Banacha 1, Warsaw 02-097, Poland.
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Fuller NR, Caterson ID, Sainsbury A, Denyer G, Fong M, Gerofi J, Baqleh K, Williams KH, Lau NS, Markovic TP. The effect of a high-egg diet on cardiovascular risk factors in people with type 2 diabetes: the Diabetes and Egg (DIABEGG) study-a 3-mo randomized controlled trial. Am J Clin Nutr 2015; 101:705-13. [PMID: 25833969 DOI: 10.3945/ajcn.114.096925] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 01/05/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Previously published research that examined the effects of high egg consumption in people with type 2 diabetes (T2D) produced conflicting results leading to recommendations to limit egg intake. However, people with T2D may benefit from egg consumption because eggs are a nutritious and convenient way of improving protein and micronutrient contents of the diet, which have importance for satiety and weight management. OBJECTIVE In this randomized controlled study, we aimed to determine whether a high-egg diet (2 eggs/d for 6 d/wk) compared with a low-egg diet (<2 eggs/wk) affected circulating lipid profiles, in particular high-density lipoprotein (HDL) cholesterol, in overweight or obese people with prediabetes or T2D. DESIGN A total of 140 participants were randomly assigned to one of the 2 diets as part of a 3-mo weight maintenance study. Participants attended the clinic monthly and were instructed on the specific types of foods and quantities to be consumed. RESULTS There was no significant difference in the change in HDL cholesterol from screening to 3 mo between groups; the mean difference (95% CI) between high- and low-egg groups was +0.02 mmol/L (-0.03, 0.08 mmol/L; P = 0.38). No between-group differences were shown for total cholesterol, low-density lipoprotein cholesterol, triglycerides, or glycemic control. Both groups were matched for protein intake, but the high-egg group reported less hunger and greater satiety postbreakfast. Polyunsaturated fatty acid (PUFA) and monounsaturated fatty acid (MUFA) intakes significantly increased from baseline in both groups. CONCLUSIONS High egg consumption did not have an adverse effect on the lipid profile of people with T2D in the context of increased MUFA and PUFA consumption. This study suggests that a high-egg diet can be included safely as part of the dietary management of T2D, and it may provide greater satiety. This trial was registered at the Australia New Zealand Clinical Trials Registry (http://www.anzctr.org.au/) as ACTRN12612001266853.
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Affiliation(s)
- Nicholas R Fuller
- From The Boden Institute of Obesity, Nutrition, Exercise & Eating Disorders (NRF, AS, IDC, GD, MF, JG, KB, KHW, NSL, and TPM) and School of Molecular Bioscience (GD), The University of Sydney, Sydney, Australia, and Metabolism & Obesity Services, Royal Prince Alfred Hospital, Camperdown, Australia (IDC and TPM)
| | - Ian D Caterson
- From The Boden Institute of Obesity, Nutrition, Exercise & Eating Disorders (NRF, AS, IDC, GD, MF, JG, KB, KHW, NSL, and TPM) and School of Molecular Bioscience (GD), The University of Sydney, Sydney, Australia, and Metabolism & Obesity Services, Royal Prince Alfred Hospital, Camperdown, Australia (IDC and TPM)
| | - Amanda Sainsbury
- From The Boden Institute of Obesity, Nutrition, Exercise & Eating Disorders (NRF, AS, IDC, GD, MF, JG, KB, KHW, NSL, and TPM) and School of Molecular Bioscience (GD), The University of Sydney, Sydney, Australia, and Metabolism & Obesity Services, Royal Prince Alfred Hospital, Camperdown, Australia (IDC and TPM)
| | - Gareth Denyer
- From The Boden Institute of Obesity, Nutrition, Exercise & Eating Disorders (NRF, AS, IDC, GD, MF, JG, KB, KHW, NSL, and TPM) and School of Molecular Bioscience (GD), The University of Sydney, Sydney, Australia, and Metabolism & Obesity Services, Royal Prince Alfred Hospital, Camperdown, Australia (IDC and TPM)
| | - Mackenzie Fong
- From The Boden Institute of Obesity, Nutrition, Exercise & Eating Disorders (NRF, AS, IDC, GD, MF, JG, KB, KHW, NSL, and TPM) and School of Molecular Bioscience (GD), The University of Sydney, Sydney, Australia, and Metabolism & Obesity Services, Royal Prince Alfred Hospital, Camperdown, Australia (IDC and TPM)
| | - James Gerofi
- From The Boden Institute of Obesity, Nutrition, Exercise & Eating Disorders (NRF, AS, IDC, GD, MF, JG, KB, KHW, NSL, and TPM) and School of Molecular Bioscience (GD), The University of Sydney, Sydney, Australia, and Metabolism & Obesity Services, Royal Prince Alfred Hospital, Camperdown, Australia (IDC and TPM)
| | - Katherine Baqleh
- From The Boden Institute of Obesity, Nutrition, Exercise & Eating Disorders (NRF, AS, IDC, GD, MF, JG, KB, KHW, NSL, and TPM) and School of Molecular Bioscience (GD), The University of Sydney, Sydney, Australia, and Metabolism & Obesity Services, Royal Prince Alfred Hospital, Camperdown, Australia (IDC and TPM)
| | - Kathryn H Williams
- From The Boden Institute of Obesity, Nutrition, Exercise & Eating Disorders (NRF, AS, IDC, GD, MF, JG, KB, KHW, NSL, and TPM) and School of Molecular Bioscience (GD), The University of Sydney, Sydney, Australia, and Metabolism & Obesity Services, Royal Prince Alfred Hospital, Camperdown, Australia (IDC and TPM)
| | - Namson S Lau
- From The Boden Institute of Obesity, Nutrition, Exercise & Eating Disorders (NRF, AS, IDC, GD, MF, JG, KB, KHW, NSL, and TPM) and School of Molecular Bioscience (GD), The University of Sydney, Sydney, Australia, and Metabolism & Obesity Services, Royal Prince Alfred Hospital, Camperdown, Australia (IDC and TPM)
| | - Tania P Markovic
- From The Boden Institute of Obesity, Nutrition, Exercise & Eating Disorders (NRF, AS, IDC, GD, MF, JG, KB, KHW, NSL, and TPM) and School of Molecular Bioscience (GD), The University of Sydney, Sydney, Australia, and Metabolism & Obesity Services, Royal Prince Alfred Hospital, Camperdown, Australia (IDC and TPM)
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Tanrikulu-Küçük S, Koçak H, Öner-İyidoğan Y, Seyithanoğlu M, Topparmak E, Kayan-Tapan T. Serum fetuin-A and arginase-1 in human obesity model: Is there any interaction between inflammatory status and arginine metabolism? Scand J Clin Lab Invest 2015; 75:301-7. [PMID: 25723054 DOI: 10.3109/00365513.2015.1010177] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Obesity is a major risk factor for many chronic metabolic diseases such as inflammation, insulin resistance (IR) and fatty liver injury. It was reported that obesity causes some variations on the serum levels of fetuin-A and is associated with arginine metabolism, especially arginase-1 levels. The aim of our study was to evaluate, the interaction and possible changes of these liver over produced proteins, fetuin-A and arginase-1 levels in obesity-related inflammatory status. Study groups were composed of individuals aged between 19 and 63 (n = 62). The control group included healthy subjects with BMI < 25, obese group included obese patients with BMI > 30 and with no other chronic disease. Biochemical markers were determined by an auto-analyzer. Adiponectin, fetuin-A, arginase-1, asymmetric dimethylarginine (ADMA), arginine, Hexanoyl-lysine (HEL) and leptin levels were measured with commercial ELISA immunoassay kits. Nitrite and nitrate were determined with colorimetric assay kit in serum samples. High sensitive C-reactive protein (hsCRP) levels and liver function enzymes activities were higher in the obese group in respect to the control group. Serum fetuin-A, arginase-1 and leptin levels were increased but adiponectin levels were decreased in obese subjects. Fetuin-A levels showed significant correlations with arginase-1 and HOMA-IR. Consequently, we carried out an investigation about higher serum fetuin-A and arginase-1 levels may have an important role in obesity and obesity-related liver damage.
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Affiliation(s)
- Sevda Tanrikulu-Küçük
- Department of Biochemistry, Faculty of Medicine, Istanbul Bilim University , Esentepe, Istanbul , Turkey
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Saccenti E, Suarez-Diez M, Luchinat C, Santucci C, Tenori L. Probabilistic Networks of Blood Metabolites in Healthy Subjects As Indicators of Latent Cardiovascular Risk. J Proteome Res 2014; 14:1101-11. [DOI: 10.1021/pr501075r] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Edoardo Saccenti
- Laboratory
of Systems and Synthetic Biology, Wageningen University and Research Center, Dreijenplein 10, 6703 HB Wageningen, The Netherlands
| | - Maria Suarez-Diez
- Laboratory
of Systems and Synthetic Biology, Wageningen University and Research Center, Dreijenplein 10, 6703 HB Wageningen, The Netherlands
| | - Claudio Luchinat
- Magnetic
Resonance Center (CERM), University of Florence, Via L. Sacconi 6, 50019 Sesto Fiorentino, Italy
- Department
of Chemistry, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Claudio Santucci
- Magnetic
Resonance Center (CERM), University of Florence, Via L. Sacconi 6, 50019 Sesto Fiorentino, Italy
| | - Leonardo Tenori
- FiorGen Foundation, Via L. Sacconi
6, 50019 Sesto Fiorentino, Italy
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Nutrimetabolomics fingerprinting to identify biomarkers of bread exposure in a free-living population from the PREDIMED study cohort. Metabolomics 2014. [DOI: 10.1007/s11306-014-0682-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kuo L, Hein TW. Vasomotor regulation of coronary microcirculation by oxidative stress: role of arginase. Front Immunol 2013; 4:237. [PMID: 23966996 PMCID: PMC3746455 DOI: 10.3389/fimmu.2013.00237] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 08/01/2013] [Indexed: 12/14/2022] Open
Abstract
Overproduction of reactive oxygen species, i.e., oxidative stress, is associated with the activation of redox signaling pathways linking to inflammatory insults and cardiovascular diseases by impairing endothelial function and consequently blood flow dysregulation due to microvascular dysfunction. This review focuses on the regulation of vasomotor function in the coronary microcirculation by endothelial nitric oxide (NO) during oxidative stress and inflammation related to the activation of L-arginine consuming enzyme arginase. Superoxide produced in the vascular wall compromises vasomotor function by not only scavenging endothelium-derived NO but also inhibiting prostacyclin synthesis due to formation of peroxynitrite. The upregulation of arginase contributes to the deficiency of endothelial NO and microvascular dysfunction in various vascular diseases by initiating or following oxidative stress and inflammation. Hydrogen peroxide, a diffusible and stable oxidizing agent, exerts vasodilator function and plays important roles in the physiological regulation of coronary blood flow. In occlusive coronary ischemia, the release of hydrogen peroxide from the microvasculature helps to restore vasomotor function of coronary collateral microvessels with exercise training. However, excessive production and prolonged exposure of microvessels to hydrogen peroxide impairs NO-mediated endothelial function by reducing L-arginine availability through hydroxyl radical-dependent upregulation of arginase. The redox signaling can be a double-edged sword in the microcirculation, which helps tissue survival in one way by improving vasomotor regulation and elicits oxidative stress and tissue injury in the other way by causing vascular dysfunction. The impact of vascular arginase on the development of vasomotor dysfunction associated with angiotensin II receptor activation, hypertension, ischemia-reperfusion, hypercholesterolemia, and inflammatory insults is discussed.
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Affiliation(s)
- Lih Kuo
- Department of Medical Physiology, Scott & White Healthcare, Texas A&M Health Science Center, Temple, TX, USA
- Department of Surgery, College of Medicine, Scott & White Healthcare, Texas A&M Health Science Center, Temple, TX, USA
| | - Travis W. Hein
- Department of Surgery, College of Medicine, Scott & White Healthcare, Texas A&M Health Science Center, Temple, TX, USA
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Neuzillet Y, Hupertan V, Cour F, Botto H, Lebret T. A randomized, double-blind, crossover, placebo-controlled comparative clinical trial of arginine aspartate plus adenosine monophosphate for the intermittent treatment of male erectile dysfunction. Andrology 2012; 1:223-8. [DOI: 10.1111/j.2047-2927.2012.00046.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 10/30/2012] [Accepted: 11/02/2012] [Indexed: 11/26/2022]
Affiliation(s)
| | - V. Hupertan
- Department of Urology; Hôpital Bichat; Paris; France
| | - F. Cour
- Department of Urology; Hôpital Foch; Suresnes; France
| | - H. Botto
- Department of Urology; Hôpital Foch; Suresnes; France
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Silva BR, Pernomian L, Bendhack LM. Contribution of oxidative stress to endothelial dysfunction in hypertension. Front Physiol 2012; 3:441. [PMID: 23227009 PMCID: PMC3514688 DOI: 10.3389/fphys.2012.00441] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Accepted: 11/05/2012] [Indexed: 12/12/2022] Open
Abstract
Endothelial dysfunction is the hallmark of hypertension, which is a multifactorial disorder. In the cardiovascular system reactive oxygen species play a pivotal role in controlling the endothelial function and vascular tone. Physiologically, the endothelium-derived relaxing factors (EDRFs) and endothelium-derived contractile factors (EDCFs) that have functions on the vascular smooth muscle cells. The relaxation induced by the EDRFs nitric oxide (NO), prostacyclin, and the endothelium-derived hyperpolarization factor (EDHF) could be impaired in hypertension. The impaired ability of endothelial cells to release NO along with enhanced EDCFs production has been described to contribute to the endothelium dysfunction, which appears to lead to several cardiovascular diseases. The present review discusses the role of oxidative stress, vascular endothelium, and vascular tone control by EDRFs, mainly NO, and EDCFs in different models of experimental hypertension.
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Affiliation(s)
- Bruno R Silva
- Department of Pharmacology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto São Paulo, Brazil
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Perla V, Jayanty SS. Biguanide related compounds in traditional antidiabetic functional foods. Food Chem 2012; 138:1574-80. [PMID: 23411283 DOI: 10.1016/j.foodchem.2012.09.125] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Revised: 07/23/2012] [Accepted: 09/21/2012] [Indexed: 10/27/2022]
Abstract
Biguanides such as metformin are widely used worldwide for the treatment of type-2 diabetes. The identification of guanidine and related compounds in French lilac plant (Galega officinalis L.) led to the development of biguanides. Despite of their plant origin, biguanides have not been reported in plants. The objective of this study was to quantify biguanide related compounds (BRCs) in experimentally or clinically substantiated antidiabetic functional plant foods and potatoes. The corrected results of the Voges-Proskauer (V-P) assay suggest that the highest amounts of BRCs are present in green curry leaves (Murraya koenigii (L.) Sprengel) followed by fenugreek seeds (Trigonella foenum-graecum L.), green bitter gourd (Momordica charantia Descourt.), and potato (Solanum tuberosum L.). Whereas, garlic (Allium sativum L.), and sweet potato (Ipomea batatas (L.) Lam.) contain negligible amounts of BRCs. In addition, the possible biosynthetic routes of biguanide in these plant foods are discussed.
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Affiliation(s)
- Venu Perla
- San Luis Valley Research Center, Department of Horticulture and Landscape Architecture, Colorado State University, 0249 East County Road 9N, Center, CO 81125, USA.
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Tousoulis D, Androulakis E, Papageorgiou N, Stefanadis C. Novel therapeutic strategies in the management of arterial hypertension. Pharmacol Ther 2012; 135:168-75. [DOI: 10.1016/j.pharmthera.2012.05.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Accepted: 04/26/2012] [Indexed: 02/05/2023]
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Kim OY, Lee SM, Chung JH, Do HJ, Moon J, Shin MJ. Arginase I and the very low-density lipoprotein receptor are associated with phenotypic biomarkers for obesity. Nutrition 2012; 28:635-9. [DOI: 10.1016/j.nut.2011.09.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Revised: 09/13/2011] [Accepted: 09/13/2011] [Indexed: 02/04/2023]
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Tousoulis D, Antoniades C, Vlachopoulos C, Stefanadis C. Flow mediated dilation and carotid intima media thickness: clinical markers or just research tools? Int J Cardiol 2012; 163:226-228. [PMID: 22459376 DOI: 10.1016/j.ijcard.2012.03.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Accepted: 03/03/2012] [Indexed: 10/28/2022]
Affiliation(s)
| | - Charalambos Antoniades
- 1st Cardiology Department, Athens University Medical School, Greece; Department of Cardiovascular Medicine, University of Oxford, UK
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Gao L, Mao Q, Cao J, Wang Y, Zhou X, Fan L. Effects of coenzyme Q10 on vascular endothelial function in humans: a meta-analysis of randomized controlled trials. Atherosclerosis 2011; 221:311-6. [PMID: 22088605 DOI: 10.1016/j.atherosclerosis.2011.10.027] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 10/10/2011] [Accepted: 10/19/2011] [Indexed: 01/02/2023]
Abstract
OBJECTIVE The purpose of this study was to quantify the effect of coenzyme Q10 on arterial endothelial function in patients with and without established cardiovascular disease. BACKGROUND Endothelial dysfunction has been implicated in the pathogenesis of atherosclerosis. METHODS AND RESULTS The search included MEDLINE, Cochrane Library, Scopus, and EMBASE to identify studies up to 1 July 2011. Eligible studies were randomized controlled trials on the effects of coenzyme Q10 compared with placebo on endothelial function. Two reviewers extracted data on study characteristics, methods, and outcomes. Five eligible trials enrolled a total of 194 patients. Meta-analysis using random-effects model showed treatment with coenzyme Q10 significantly improvement in endothelial function assessed peripherally by flow-mediated dilatation (SMD 1.70, 95% CI: 1.00-2.4, p<0.0001). However, the endothelial function assessed peripherally by nitrate-mediated arterial dilatation was not significantly improved by using fix-effects model (SMD -0.19, 95% CI: -1.75 to 1.38, p = 0.81). CONCLUSION Coenzyme Q10 supplementation is associated with significant improvement in endothelial function. The current study supports a role for CoQ10 supplementation in patients with endothelial dysfunction.
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Affiliation(s)
- Linggen Gao
- Department of Geriatric Cardiology, General Hospital of Chinese People's Liberation Army, Beijing 100853, China
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Endothelial nitric oxide synthase in the vascular wall: Mechanisms regulating its expression and enzymatic function. Artery Res 2011. [DOI: 10.1016/j.artres.2011.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Tousoulis D, Papageorgiou N, Androulakis E, Paroutoglou K, Stefanadis C. Novel therapeutic strategies targeting vascular endothelium in essential hypertension. Expert Opin Investig Drugs 2010; 19:1395-412. [DOI: 10.1517/13543784.2010.522989] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Acute effects of different types of oil consumption on endothelial function, oxidative stress status and vascular inflammation in healthy volunteers. Br J Nutr 2009; 103:43-9. [PMID: 19703325 DOI: 10.1017/s0007114509991346] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Consumption of different types of oil may have different effects on cardiovascular risk. The exact role of maize oil, cod liver oil, soya oil and extra virgin olive oil on endothelial function, oxidative stress and inflammation is unknown. We evaluated the effect of acute consumption of these types of oil on endothelial function, oxidative stress and inflammation in healthy adults. Thirty-seven healthy volunteers were randomised to receive an oral amount of each type of oil or water. Endothelial function was evaluated by gauge-strain plethysmography at baseline and 1, 2 and 3 h after consumption. Oxidative stress status was determined by total lipid peroxides (PEROX), while inflammatory process was estimated by measuring the soluble form of vascular adhesion molecule 1. Serum levels of the two previous markers were measured at baseline and 3 h after oil consumption. Reactive hyperaemia (RH) was significantly decreased after maize oil consumption compared with controls (P < 0.05). However, the consumption of cod liver oil and soya oil induced a significant improvement of RH after 1 h, compared with controls (P < 0.05). There was no significant effect of any type of oil consumption on endothelium-independent dilatation, total lipid PEROX and vascular adhesion molecule 1 serum levels. Consumption of maize oil leads to impaired endothelial function, while soya oil and cod liver oil slightly improve endothelial function. However, all types of oils did not affect inflammatory process and systemic oxidative stress, suggesting that their effect on endothelial function may not be mediated by free radicals bioavailability.
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Siasos G, Tousoulis D, Vlachopoulos C, Antoniades C, Stefanadi E, Ioakeimidis N, Zisimos K, Siasou Z, Papavassiliou AG, Stefanadis C. The impact of oral L-arginine supplementation on acute smoking-induced endothelial injury and arterial performance. Am J Hypertens 2009; 22:586-92. [PMID: 19300425 DOI: 10.1038/ajh.2009.57] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Smoking is associated with endothelial dysfunction and increased inflammatory status. The amino acid L-arginine, improves endothelial function in patients with cardiovascular risk factors. We investigated the effect of L-arginine on vascular function and inflammatory process in healthy smokers at rest and after acute smoking. METHODS We studied the effect of L-arginine and/or placebo in 12 healthy young smokers on three occasions (day 0, day 1, and day 3). The study was carried out on two separate arms, one with L-arginine (3 x 7 g/day) and one with placebo, according to a randomized, placebo-controlled, double-blind, cross-over design. Measurements were carried out before, immediately after, and 20 min after cigarette smoking. Endothelial function was evaluated by flow-mediated dilation (FMD). Carotid-femoral pulse wave velocity (PWV) was measured as an index of aortic stiffness and augmentation index (AIx) and as a measure of arterial wave reflections. Serum soluble intercellular adhesion molecule-1 (sICAM-1) was measured. RESULTS Compared to placebo, L-arginine improved FMD (P < 0.01 at day 1 and P < 0.05 at day 3). L-Arginine reduced PWV and AIx at both days 1 and 3 (P < 0.05 vs. baseline). L-Arginine blunted the acute smoking-induced increase of AIx at both day 1 (P < 0.05) and day 3 (P < 0.01), and prevented the smoking-induced elevation of PWV at day 3 (P < 0.05). Importantly, L-arginine reduced sICAM-1 at days 1 and 3 (P < 0.05 for both vs. baseline). CONCLUSIONS Oral L-arginine improves endothelial function and vascular elastic properties of the arterial tree during the acute phase of smoking, an effect accompanied by reduced sICAM-1 levels in these subjects.
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Amin HJ, Soraisham AS, Sauve RS. Neurodevelopmental outcomes of premature infants treated with l-arginine for prevention of necrotising enterocolitis. J Paediatr Child Health 2009; 45:219-23. [PMID: 19320804 DOI: 10.1111/j.1440-1754.2008.01458.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIM This study aimed to compare the long-term neurodevelopmental outcomes at 36 months adjusted age in preterm infants (birth weight < or = 1250 gm) who received supplementation with L-arginine during the first 28 days of life with controls. METHODS Surviving infants enrolled in a randomised control study of L-arginine supplementation were prospectively followed longitudinally to determine their neurodevelopmental outcomes at 36 months of adjusted age. Neurologic examination and neurodevelopmental assessments were performed by examiners who were unaware of the original treatment assignments. RESULTS A total of 132 children (95% of survivors) were evaluated at 36 months adjusted age. In the group given L-arginine, 5 of 61 (8.1%) had major neurodevelopmental disabilities, defined as the presence of one or more of cerebral palsy, cognitive delay (cognitive index <70), bilateral blindness or bilateral hearing loss requiring hearing aids as compared with 9 of 71 (12.6%) in the placebo group (relative risk, 0.64; 95 % confidence interval, 0.22-1.82; P= 0.40). CONCLUSIONS There is no increase in neurodevelopmental disability in preterm infants who received L-arginine supplementation.
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Affiliation(s)
- Harish J Amin
- Division of Neonatology, Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada.
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