1
|
Viana T, Melo RMVD, Azevedo DFC, Figueiredo CS, Santana G, Damasceno LM, Latado L, Tambuque L, Barreto R, Passos LCS. Allopurinol versus Trimetazidine for the Treatment of Angina: A Randomized Clinical Trial. Arq Bras Cardiol 2024; 121:e20230659. [PMID: 39194039 DOI: 10.36660/abc.20230659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 04/17/2024] [Indexed: 08/29/2024] Open
Abstract
BACKGROUND Recently, it was demonstrated that allopurinol, a xanthine oxidase inhibitor, has cardiovascular and anti-ischaemic properties and may be a metabolic antianginal agent option.Objective: The objective of this study was to evaluate the antianginal effect of allopurinol as a third drug for patients with stable coronary artery disease (CAD). METHODS This was a randomized clinical trial between 2018 and 2020 including patients with CAD who maintained angina despite initial optimization with beta-blockers and calcium channel blockers. The individuals were randomized 1:1 to 300 mg of allopurinol twice daily or 35 mg of trimetazidine twice daily. The main outcome was the difference in the angina frequency domain of the Seattle Angina Questionnaire (SAQ-AF). A probability (p) value < 0.05 was considered statistically significant. RESULTS A hundred and eight patients were included in the randomization phase, with 54 (50%) in the allopurinol group and 54 (50%) in the trimetazidine group. Six (5.6%) individuals, 3 from each group, were lost to follow-up for the primary outcome. In the allopurinol and trimetazidine groups, the median SAQ-AF scores were 50 (30.0 to 70.0) and 50 (21.3 to 78.3), respectively. In both groups, the SAQ-AF score improved, but the median of the difference compared to baseline was lower in the allopurinol group (10 [0 to 30] versus 20 [10 to 40]; p < 0.001), as was the mean of the difference in the total SAQ score (12.8 ± 17.8 versus 21.2 ± 15.9; p = 0.014). CONCLUSION Both allopurinol and trimetazidine improved the control of angina symptoms; however, trimetazidine presented a greater gain compared to baseline. Brazilian Registry of Clinical Trials - Registration Number RBR-5kh98y.
Collapse
Affiliation(s)
- Tainá Viana
- Universidade Federal da Bahia, Salvador, BA - Brasil
| | | | | | | | | | | | | | | | | | | |
Collapse
|
2
|
Wen S, Arakawa H, Tamai I. Uric acid in health and disease: From physiological functions to pathogenic mechanisms. Pharmacol Ther 2024; 256:108615. [PMID: 38382882 DOI: 10.1016/j.pharmthera.2024.108615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/02/2024] [Accepted: 02/17/2024] [Indexed: 02/23/2024]
Abstract
Owing to renal reabsorption and the loss of uricase activity, uric acid (UA) is strictly maintained at a higher physiological level in humans than in other mammals, which provides a survival advantage during evolution but increases susceptibility to certain diseases such as gout. Although monosodium urate (MSU) crystal precipitation has been detected in different tissues of patients as a trigger for disease, the pathological role of soluble UA remains controversial due to the lack of causality in the clinical setting. Abnormal elevation or reduction of UA levels has been linked to some of pathological status, also known as U-shaped association, implying that the physiological levels of UA regulated by multiple enzymes and transporters are crucial for the maintenance of health. In addition, the protective potential of UA has also been proposed in aging and some diseases. Therefore, the role of UA as a double-edged sword in humans is determined by its physiological or non-physiological levels. In this review, we summarize biosynthesis, membrane transport, and physiological functions of UA. Then, we discuss the pathological involvement of hyperuricemia and hypouricemia as well as the underlying mechanisms by which UA at abnormal levels regulates the onset and progression of diseases. Finally, pharmacological strategies for urate-lowering therapy (ULT) are introduced, and current challenges in UA study and future perspectives are also described.
Collapse
Affiliation(s)
- Shijie Wen
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Hiroshi Arakawa
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Ikumi Tamai
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan.
| |
Collapse
|
3
|
Mackenzie IS, Hawkey CJ, Ford I, Greenlaw N, Pigazzani F, Rogers A, Struthers AD, Begg AG, Wei L, Avery AJ, Taggar JS, Walker A, Duce SL, Barr RJ, Dumbleton JS, Rooke ED, Townend JN, Ritchie LD, MacDonald TM. Allopurinol and cardiovascular outcomes in patients with ischaemic heart disease: the ALL-HEART RCT and economic evaluation. Health Technol Assess 2024; 28:1-55. [PMID: 38551218 PMCID: PMC11017142 DOI: 10.3310/attm4092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/02/2024] Open
Abstract
Background Allopurinol is a xanthine oxidase inhibitor that lowers serum uric acid and is used to prevent acute gout flares in patients with gout. Observational and small interventional studies have suggested beneficial cardiovascular effects of allopurinol. Objective To determine whether allopurinol improves major cardiovascular outcomes in patients with ischaemic heart disease. Design Prospective, randomised, open-label, blinded endpoint multicentre clinical trial. Setting Four hundred and twenty-four UK primary care practices. Participants Aged 60 years and over with ischaemic heart disease but no gout. Interventions Participants were randomised (1 : 1) using a central web-based randomisation system to receive allopurinol up to 600 mg daily that was added to usual care or to continue usual care. Main outcome measures The primary outcome was the composite of non-fatal myocardial infarction, non-fatal stroke or cardiovascular death. Secondary outcomes were non-fatal myocardial infarction, non-fatal stroke, cardiovascular death, all-cause mortality, hospitalisation for heart failure, hospitalisation for acute coronary syndrome, coronary revascularisation, hospitalisation for acute coronary syndrome or coronary revascularisation, all cardiovascular hospitalisations, quality of life and cost-effectiveness. The hazard ratio (allopurinol vs. usual care) in a Cox proportional hazards model was assessed for superiority in a modified intention-to-treat analysis. Results From 7 February 2014 to 2 October 2017, 5937 participants were enrolled and randomised to the allopurinol arm (n = 2979) or the usual care arm (n = 2958). A total of 5721 randomised participants (2853 allopurinol; 2868 usual care) were included in the modified intention-to-treat analysis population (mean age 72.0 years; 75.5% male). There was no difference between the allopurinol and usual care arms in the primary endpoint, 314 (11.0%) participants in the allopurinol arm (2.47 events per 100 patient-years) and 325 (11.3%) in the usual care arm (2.37 events per 100 patient-years), hazard ratio 1.04 (95% confidence interval 0.89 to 1.21); p = 0.65. Two hundred and eighty-eight (10.1%) participants in the allopurinol arm and 303 (10.6%) participants in the usual care arm died, hazard ratio 1.02 (95% confidence interval 0.87 to 1.20); p = 0.77. The pre-specified health economic analysis plan was to perform a 'within trial' cost-utility analysis if there was no statistically significant difference in the primary endpoint, so NHS costs and quality-adjusted life-years were estimated over a 5-year period. The difference in costs between treatment arms was +£115 higher for allopurinol (95% confidence interval £17 to £210) with no difference in quality-adjusted life-years (95% confidence interval -0.061 to +0.060). We conclude that there is no evidence that allopurinol used in line with the study protocol is cost-effective. Limitations The results may not be generalisable to younger populations, other ethnic groups or patients with more acute ischaemic heart disease. One thousand six hundred and thirty-seven participants (57.4%) in the allopurinol arm withdrew from randomised treatment, but an on-treatment analysis gave similar results to the main analysis. Conclusions The ALL-HEART study showed that treatment with allopurinol 600 mg daily did not improve cardiovascular outcomes compared to usual care in patients with ischaemic heart disease. We conclude that allopurinol should not be recommended for the secondary prevention of cardiovascular events in patients with ischaemic heart disease but no gout. Future work The effects of allopurinol on cardiovascular outcomes in patients with ischaemic heart disease and co-existing hyperuricaemia or clinical gout could be explored in future studies. Trial registration This trial is registered as EU Clinical Trials Register (EudraCT 2013-003559-39) and ISRCTN (ISRCTN 32017426). Funding This award was funded by the National Institute for Health and Care Research (NIHR) Health Technology Assessment programme (NIHR award ref: 11/36/41) and is published in full in Health Technology Assessment; Vol. 28, No. 18. See the NIHR Funding and Awards website for further award information.
Collapse
Affiliation(s)
- Isla S Mackenzie
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| | | | - Ian Ford
- The Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK
| | - Nicola Greenlaw
- The Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK
| | - Filippo Pigazzani
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| | - Amy Rogers
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| | - Allan D Struthers
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| | - Alan G Begg
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| | - Li Wei
- School of Pharmacy, University College London, London, UK
| | - Anthony J Avery
- Centre for Academic Primary Care, School of Medicine, University of Nottingham, Nottingham, UK
| | - Jaspal S Taggar
- Centre for Academic Primary Care, School of Medicine, University of Nottingham, Nottingham, UK
| | | | - Suzanne L Duce
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| | - Rebecca J Barr
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| | | | - Evelien D Rooke
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| | - Jonathan N Townend
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | | | - Thomas M MacDonald
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| |
Collapse
|
4
|
Kuwabara M, Fukuuchi T, Aoki Y, Mizuta E, Ouchi M, Kurajoh M, Maruhashi T, Tanaka A, Morikawa N, Nishimiya K, Akashi N, Tanaka Y, Otani N, Morita M, Miyata H, Takada T, Tsutani H, Ogino K, Ichida K, Hisatome I, Abe K. Exploring the Multifaceted Nexus of Uric Acid and Health: A Review of Recent Studies on Diverse Diseases. Biomolecules 2023; 13:1519. [PMID: 37892201 PMCID: PMC10604821 DOI: 10.3390/biom13101519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/21/2023] [Accepted: 10/06/2023] [Indexed: 10/29/2023] Open
Abstract
The prevalence of patients with hyperuricemia or gout is increasing worldwide. Hyperuricemia and gout are primarily attributed to genetic factors, along with lifestyle factors like consuming a purine-rich diet, alcohol and/or fructose intake, and physical activity. While numerous studies have reported various comorbidities linked to hyperuricemia or gout, the range of these associations is extensive. This review article focuses on the relationship between uric acid and thirteen specific domains: transporters, genetic factors, diet, lifestyle, gout, diabetes mellitus, metabolic syndrome, atherosclerosis, hypertension, kidney diseases, cardiovascular diseases, neurological diseases, and malignancies. The present article provides a comprehensive review of recent developments in these areas, compiled by experts from the Young Committee of the Japanese Society of Gout and Uric and Nucleic Acids. The consolidated summary serves to enhance the global comprehension of uric acid-related matters.
Collapse
Affiliation(s)
- Masanari Kuwabara
- Department of Cardiology, Toranomon Hospital, 2-2-2-Toranomon, Minato, Tokyo 105-8470, Japan
| | - Tomoko Fukuuchi
- Laboratory of Biomedical and Analytical Sciences, Faculty of Pharma-Science, Teikyo University, Itabashi, Tokyo 173-8605, Japan;
| | - Yuhei Aoki
- Department of Cardiorenal and Cerebrovascular Medicine, Faculty of Medicine, Kagawa University, Takamatsu 761-0793, Kagawa, Japan;
| | - Einosuke Mizuta
- Department of Cardiology, Sanin Rosai Hospital, Yonago 683-8605, Tottori, Japan;
| | - Motoshi Ouchi
- Department of Health Promotion in Nursing and Midwifery, Innovative Nursing for Life Course, Graduate School of Nursing, Chiba University, Chiba 260-8672, Chiba, Japan;
- Department of Pharmacology and Toxicology, School of Medicine, Dokkyo Medical University, Mibu 321-0293, Tochigi, Japan
| | - Masafumi Kurajoh
- Department of Metabolism, Endocrinology and Molecular Medicine, Graduate School of Medicine, Osaka Metropolitan University, Osaka 5454-8585, Osaka, Japan;
| | - Tatsuya Maruhashi
- Department of Regenerative Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Hiroshima, Japan;
| | - Atsushi Tanaka
- Department of Cardiovascular Medicine, Saga University, Saga 849-8501, Saga, Japan;
| | - Nagisa Morikawa
- Division of Cardio-Vascular Medicine, Department of Internal Medicine, Kurume University School of Medicine, Kurume 830-0011, Fukuoka, Japan;
- Department of Community Medicine, Kurume University School of Medicine, Kurume 830-0011, Fukuoka, Japan
| | - Kensuke Nishimiya
- Department of Cardiovascular Medicine, Tohoku University Hospital, Sendai 980-8574, Miyagi, Japan;
| | - Naoyuki Akashi
- Division of Cardiovascular Medicine, Jichi Medical University Saitama Medical Center, Saitama 330-8503, Saitama, Japan;
| | - Yoshihiro Tanaka
- Division of Epidemiology, Graduate School of Public Health, Shizuoka Graduate University of Public Health, Shizuoka 420-0881, Shizuoka, Japan;
| | - Naoyuki Otani
- Cardiovascular Center, Dokkyo Medical University Nikko Medical Center, Nikko 321-1298, Tochigi, Japan;
| | - Mihoko Morita
- Department of Hematology and Oncology, University of Fukui Hospital, Eiheiji 910-1193, Fukui, Japan;
| | - Hiroshi Miyata
- Department of Pharmacy, The University of Tokyo Hospital, Bunkyo, Tokyo 113-8655, Japan; (H.M.); (T.T.)
| | - Tappei Takada
- Department of Pharmacy, The University of Tokyo Hospital, Bunkyo, Tokyo 113-8655, Japan; (H.M.); (T.T.)
| | - Hiroshi Tsutani
- National Hospital Organization Awara Hospital, Awara 910-4272, Fukui, Japan;
| | - Kazuhide Ogino
- Department of Cardiology, Japanese Red Cross Tottori Hospital, Tottori 680-8517, Tottori, Japan;
| | - Kimiyoshi Ichida
- Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan;
| | - Ichiro Hisatome
- National Hospital Organization Yonago Medical Center, Yonago 683-0006, Tottori, Japan;
| | - Kohtaro Abe
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Fukuoka, Japan;
| |
Collapse
|
5
|
Sánchez-Lozada LG, Madero M, Mazzali M, Feig DI, Nakagawa T, Lanaspa MA, Kanbay M, Kuwabara M, Rodriguez-Iturbe B, Johnson RJ. Sugar, salt, immunity and the cause of primary hypertension. Clin Kidney J 2023; 16:1239-1248. [PMID: 37529651 PMCID: PMC10387395 DOI: 10.1093/ckj/sfad058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Indexed: 08/03/2023] Open
Abstract
Despite its discovery more than 150 years ago, the cause of primary hypertension remains unknown. Most studies suggest that hypertension involves genetic, congenital or acquired risk factors that result in a relative inability of the kidney to excrete salt (sodium chloride) in the kidneys. Here we review recent studies that suggest there may be two phases, with an initial phase driven by renal vasoconstriction that causes low-grade ischemia to the kidney, followed by the infiltration of immune cells that leads to a local autoimmune reaction that maintains the renal vasoconstriction. Evidence suggests that multiple mechanisms could trigger the initial renal vasoconstriction, but one way may involve fructose that is provided in the diet (such as from table sugar or high fructose corn syrup) or produced endogenously. The fructose metabolism increases intracellular uric acid, which recruits NADPH oxidase to the mitochondria while inhibiting AMP-activated protein kinase. A drop in intracellular ATP level occurs, triggering a survival response. Leptin levels rise, triggering activation of the sympathetic central nervous system, while vasopressin levels rise, causing vasoconstriction in its own right and stimulating aldosterone production via the vasopressin 1b receptor. Low-grade renal injury and autoimmune-mediated inflammation occur. High-salt diets can amplify this process by raising osmolality and triggering more fructose production. Thus, primary hypertension may result from the overactivation of a survival response triggered by fructose metabolism. Restricting salt and sugar and hydrating with ample water may be helpful in the prevention of primary hypertension.
Collapse
Affiliation(s)
- Laura G Sánchez-Lozada
- Department of Cardio-Renal Physiopathology, Instituto Nacional de Cardiología “Ignacio Chavez”, Mexico City, Mexico
| | - Magdalena Madero
- Division of Nephrology, Department of Medicine, Instituto Nacional de Cardiología “Ignacio Chavez”, Mexico City, Mexico
| | - Marilda Mazzali
- Division of Nephrology, University of Campinas, São Paulo, Brazil
| | - Daniel I Feig
- Division of Pediatric Nephrology, University of Alabama, Birmingham, AL, USA
| | | | - Miguel A Lanaspa
- Department of Medicine, University of Colorado Anschutz Medical Center, Aurora, CO, USA
| | - Mehmet Kanbay
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | | | - Bernardo Rodriguez-Iturbe
- Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición “Salvador Zubirán”, Mexico City
| | - Richard J Johnson
- Department of Medicine, University of Colorado Anschutz Medical Center, Aurora, CO, USA
| |
Collapse
|
6
|
Kuwabara M, Kodama T, Ae R, Kanbay M, Andres-Hernando A, Borghi C, Hisatome I, Lanaspa MA. Update in uric acid, hypertension, and cardiovascular diseases. Hypertens Res 2023; 46:1714-1726. [PMID: 37072573 DOI: 10.1038/s41440-023-01273-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 02/18/2023] [Accepted: 03/12/2023] [Indexed: 04/20/2023]
Abstract
A direct relationship between serum uric acid levels and hypertension, cardiovascular, renal and metabolic diseases has been reported in many basic and epidemiological studies. Among these, high blood pression is one of the most common features associated with hyperuricemia. In this regard, several small-scale interventional studies have demonstrated a significant reduction in blood pressure in hypertensive or prehypertensive patients on uric acid-lowering drugs. These observation or intervention studies have led to affirm that there is a causal relationship between uric acid and hypertension. While the clinical association between uric acid and high blood pressure is notable, no clear conclusion has yet been reached as to whether lowering uric acid is beneficial to prevent cardiovascular and renal metabolic diseases. Recently, several prospective randomized controlled intervention trials using allopurinol and other uric acid-lowering drugs have been reported, and the results from these trials were almost negative, suggesting that the correlation between hyperuricemia and cardiovascular disease has no causality. However, it is important to note that in some of these recent studies there were high dropout rates and an important fraction of participants were not hyperuricemic. Therefore, we should carry caution in interpreting the results of these studies. This review article presents the results of recent clinical trials using uric acid-lowering drugs, focusing on hypertension and cardiovascular and renal metabolic diseases, and discusses the future of uric acid therapy.
Collapse
Affiliation(s)
| | | | - Ryusuke Ae
- Division of Public Health, Center for Community Medicine, Jichi Medical University, Tochigi, Japan
| | - Mehmet Kanbay
- Division of Nephrology, Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Ana Andres-Hernando
- Division of Endocrinology, Metabolism and Diabetes, School of Medicine, University of Colorado Denver, Aurora, CO, USA
| | - Claudio Borghi
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Ichiro Hisatome
- Department of Cardiology, Yonago Medical Center, Yonago, Torrori, Japan
| | - Miguel A Lanaspa
- Division of Endocrinology, Metabolism and Diabetes, School of Medicine, University of Colorado Denver, Aurora, CO, USA
| |
Collapse
|
7
|
Anders HJ, Li Q, Steiger S. Asymptomatic hyperuricaemia in chronic kidney disease: mechanisms and clinical implications. Clin Kidney J 2023; 16:928-938. [PMID: 37261000 PMCID: PMC10229286 DOI: 10.1093/ckj/sfad006] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Indexed: 10/19/2023] Open
Abstract
Asymptomatic hyperuricaemia (HU) is considered a pathogenic factor in multiple disease contexts, but a causative role is only proven for the crystalline form of uric acid in gouty arthritis and urate nephropathy. Epidemiological studies document a robust association of HU with hypertension, cardiovascular disease (CVD) and CKD progression, but CKD-related impaired uric acid (UA) clearance and the use of diuretics that further impair UA clearance likely accounts for these associations. Interpreting the available trial evidence is further complicated by referring to xanthine oxidase inhibitors as urate-lowering treatment, although these drugs inhibit other substrates, so attributing their effects only to HU is problematic. In this review we provide new mechanistic insights into the biological effects of soluble and crystalline UA and discuss clinical evidence on the role of asymptomatic HU in CKD, CVD and sterile inflammation. We identify research areas with gaps in experimental and clinical evidence, specifically on infectious complications that represent the second common cause of death in CKD patients, referred to as secondary immunodeficiency related to kidney disease. In addition, we address potential therapeutic approaches on how and when to treat asymptomatic HU in patients with kidney disease and where further interventional studies are required.
Collapse
Affiliation(s)
- Hans-Joachim Anders
- Division of Nephrology, Department of Medicine IV, Hospital of the Ludwig-Maximilians University, Munich, Germany
| | - Qiubo Li
- Division of Nephrology, Department of Medicine IV, Hospital of the Ludwig-Maximilians University, Munich, Germany
| | - Stefanie Steiger
- Division of Nephrology, Department of Medicine IV, Hospital of the Ludwig-Maximilians University, Munich, Germany
| |
Collapse
|
8
|
Dawson J, Robertson M, Dickie DA, Bath P, Forbes K, Quinn T, Broomfield NM, Dani K, Doney A, Houston G, Lees KR, Muir KW, Struthers A, Walters M, Barber M, Bhalla A, Cameron A, Dyker A, Guyler P, Hassan A, Kearney MT, Keegan B, Lakshmanan S, Macleod MJ, Randall M, Shaw L, Subramanian G, Werring D, McConnachie A. Xanthine oxidase inhibition and white matter hyperintensity progression following ischaemic stroke and transient ischaemic attack (XILO-FIST): a multicentre, double-blinded, randomised, placebo-controlled trial. EClinicalMedicine 2023; 57:101863. [PMID: 36864979 PMCID: PMC9972492 DOI: 10.1016/j.eclinm.2023.101863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 02/18/2023] Open
Abstract
BACKGROUND People who experience an ischaemic stroke are at risk of recurrent vascular events, progression of cerebrovascular disease, and cognitive decline. We assessed whether allopurinol, a xanthine oxidase inhibitor, reduced white matter hyperintensity (WMH) progression and blood pressure (BP) following ischaemic stroke or transient ischaemic attack (TIA). METHODS In this multicentre, prospective, randomised, double-blinded, placebo-controlled trial conducted in 22 stroke units in the United Kingdom, we randomly assigned participants within 30-days of ischaemic stroke or TIA to receive oral allopurinol 300 mg twice daily or placebo for 104 weeks. All participants had brain MRI performed at baseline and week 104 and ambulatory blood pressure monitoring at baseline, week 4 and week 104. The primary outcome was the WMH Rotterdam Progression Score (RPS) at week 104. Analyses were by intention to treat. Participants who received at least one dose of allopurinol or placebo were included in the safety analysis. This trial is registered with ClinicalTrials.gov, NCT02122718. FINDINGS Between 25th May 2015 and the 29th November 2018, 464 participants were enrolled (232 per group). A total of 372 (189 with placebo and 183 with allopurinol) attended for week 104 MRI and were included in analysis of the primary outcome. The RPS at week 104 was 1.3 (SD 1.8) with allopurinol and 1.5 (SD 1.9) with placebo (between group difference -0.17, 95% CI -0.52 to 0.17, p = 0.33). Serious adverse events were reported in 73 (32%) participants with allopurinol and in 64 (28%) with placebo. There was one potentially treatment related death in the allopurinol group. INTERPRETATION Allopurinol use did not reduce WMH progression in people with recent ischaemic stroke or TIA and is unlikely to reduce the risk of stroke in unselected people. FUNDING The British Heart Foundation and the UK Stroke Association.
Collapse
Affiliation(s)
- Jesse Dawson
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary & Life Sciences, University of Glasgow, Queen Elizabeth University Hospital, Glasgow, G51 4TF, UK
- Corresponding author.
| | - Michele Robertson
- Robertson Centre for Biostatistics, School of Health and Wellbeing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - David Alexander Dickie
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary & Life Sciences, University of Glasgow, Queen Elizabeth University Hospital, Glasgow, G51 4TF, UK
- DD Analytics Cubed Ltd, 73 Union Street, Greenock, Scotland, PA16 8BG, UK
| | - Phillip Bath
- Stroke Trials Unit, Mental Health & Clinical Neuroscience, University of Nottingham, Nottingham, NG7 2UH, UK
| | - Kirsten Forbes
- Department of Neuroradiology, Institute of Neurological Sciences, Queen Elizabeth University Hospital, 1345 Govan Road, Glasgow, G51 4TF, UK
| | - Terence Quinn
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK
| | - Niall M. Broomfield
- Department of Clinical Psychology and Psychological Therapies, Norwich Medical School, University of East Anglia, NR4 7TJ, UK
| | - Krishna Dani
- Department of Neurology, Institute of Neurological Sciences Glasgow, Queen Elizabeth University Hospital, 1345 Govan Road, Glasgow, G51 4TF, UK
| | - Alex Doney
- Medicine Monitoring Unit (MEMO), School of Medicine, University of Dundee. Ninewells Hospital, Dundee, DD1 9SY, UK
| | - Graeme Houston
- Division of Imaging and Science Technology, School of Medicine, Ninewells Hospital, Dundee, DD1 9SY, UK
| | - Kennedy R. Lees
- School of Medicine, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Keith W. Muir
- School of Psychology and Neuroscience, College of Medical, Veterinary & Life Sciences, University of Glasgow, Queen Elizabeth University Hospital, Glasgow, G51 4TF, UK
| | - Allan Struthers
- Division of Molecular and Clinical Medicine, University of Dundee, UK
| | - Matthew Walters
- School of Medicine, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Mark Barber
- University Department of Stroke Care, University Hospital Monklands, Airdrie, ML6 OJS, UK
| | - Ajay Bhalla
- Department of Stroke, Ageing and Health, Guy's and St Thomas NHS Foundation Trust, St Thomas' Hospital, Lambeth Palace Rd, London, SE1 7EH, UK
| | - Alan Cameron
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary & Life Sciences, University of Glasgow, Queen Elizabeth University Hospital, Glasgow, G51 4TF, UK
| | - Alexander Dyker
- Wolfson Unit of Clinical Pharmacology, Royal Victoria Infirmary, Newcastle Upon Tyne, UK
| | - Paul Guyler
- Department of Stroke Medicine, Mid and South Essex University Hospitals Group, Southend University Hospital, Prittlewell Chase, Westcliff-on-Sea, Essex, SS0 0RY, UK
| | - Ahamad Hassan
- Department of Neurology, Leeds General Infirmary, Leeds, UK
| | - Mark T. Kearney
- Leeds Institute of Cardiovascular and Metabolic Medicine, The University of Leeds, Leeds, UK
| | - Breffni Keegan
- Department of Medicine, South West Acute Hospital, Enniskillen, BT74 6DN, UK
| | - Sekaran Lakshmanan
- Department of Stroke Medicine The Luton and Dunstable University Hospital, Bedfordshire, NHSFT, Lewsey Road, Luton, LU4 0DZ, UK
| | | | - Marc Randall
- Department of Neurology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Louise Shaw
- Department of Stroke Medicine, Royal United Hospital, Combe Park, Bath, BA1 3NG, UK
| | - Ganesh Subramanian
- Department of Stroke Medicine, Nottingham University Hospitals, Nottingham, NG5 1PB, UK
| | - David Werring
- Stroke Research Centre, UCL Queen Square Institute of Neurology, London, UK
- Comprehensive Stroke Service, National Hospital for Neurology and Neurosurgery, Queen Square, University College Hospitals NHS Foundation Trust, London, UK
| | - Alex McConnachie
- Robertson Centre for Biostatistics, School of Health and Wellbeing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| |
Collapse
|
9
|
The Effects of Topiroxostat, a Selective Xanthine Oxidoreductase Inhibitor, on Arterial Stiffness in Hyperuricemic Patients with Liver Dysfunction: A Sub-Analysis of the BEYOND-UA Study. Biomedicines 2023; 11:biomedicines11030674. [PMID: 36979653 PMCID: PMC10045538 DOI: 10.3390/biomedicines11030674] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 02/10/2023] [Accepted: 02/21/2023] [Indexed: 02/25/2023] Open
Abstract
Background: The effects of uric acid (UA)-lowering therapy with xanthine oxidoreductase (XOR) inhibitors on the development of cardiovascular diseases remain controversial. Based on recent findings that plasma XOR activity increased in liver disease conditions, we conducted a sub-analysis of the BEYOND-UA study to examine the differential effects of topiroxostat on arterial stiffness based on liver function in hyperuricemic individuals with hypertension. Methods: Sixty-three subjects treated with topiroxostat were grouped according to baseline alanine aminotransferase (ALT) levels (above or below cut-off values of 22, 30, or 40 U/L). The primary endpoint was changes in the cardio-ankle vascular index (CAVI) from baseline to 24 weeks. Results: Significant reductions in CAVI during topiroxostat therapy occurred in subjects with baseline ALT ≥30 U/L or ≥40 U/L, and significant between-group differences were detected. Brachial-ankle pulse wave velocity significantly decreased in the ALT-high groups at all cut-off values. Reductions in morning home blood pressure and serum UA were similar regardless of the baseline ALT level. For eleven subjects with available data, ALT-high groups showed high plasma XOR activity, which was significantly suppressed by topiroxostat. Conclusions: Topiroxostat improved arterial stiffness parameters in hyperuricemic patients with liver dysfunction, which might be related to its inhibitory effect on plasma XOR.
Collapse
|
10
|
Liu PY, Huang CM, Chen HH, Wang HS, Lin GM. Serum Uric Acid and Clinical Cardiovascular Diseases in Men and Women: A Perspective for the Drug Target and the Effect of Sex. Endocr Metab Immune Disord Drug Targets 2023; 23:1368-1370. [PMID: 37151167 DOI: 10.2174/1871530323666230505114734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/28/2023] [Accepted: 03/13/2023] [Indexed: 05/09/2023]
Affiliation(s)
- Pang-Yen Liu
- Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chen-Ming Huang
- Department of Cardiovascular Surgery, Mennonite Christian Hospital, Hualien City, Taiwan
| | - Han-Hsing Chen
- Department of Cardiovascular Medicine, Mennonite Christian Hospital, Hualien City, Taiwan
| | - Hui-Shang Wang
- Department of Internal Medicine, Division of Cardiology, Hualien Tzu Chi Hospital, Hualien City, Taiwan
| | - Gen-Min Lin
- Department of Internal Medicine, Hualien Armed Forces General Hospital, Hualien City, Taiwan
| |
Collapse
|
11
|
Mackenzie IS, Hawkey CJ, Ford I, Greenlaw N, Pigazzani F, Rogers A, Struthers AD, Begg AG, Wei L, Avery AJ, Taggar JS, Walker A, Duce SL, Barr RJ, Dumbleton JS, Rooke ED, Townend JN, Ritchie LD, MacDonald TM. Allopurinol versus usual care in UK patients with ischaemic heart disease (ALL-HEART): a multicentre, prospective, randomised, open-label, blinded-endpoint trial. Lancet 2022; 400:1195-1205. [PMID: 36216006 DOI: 10.1016/s0140-6736(22)01657-9] [Citation(s) in RCA: 61] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 08/23/2022] [Accepted: 08/23/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND Allopurinol is a urate-lowering therapy used to treat patients with gout. Previous studies have shown that allopurinol has positive effects on several cardiovascular parameters. The ALL-HEART study aimed to determine whether allopurinol therapy improves major cardiovascular outcomes in patients with ischaemic heart disease. METHODS ALL-HEART was a multicentre, prospective, randomised, open-label, blinded-endpoint trial done in 18 regional centres in England and Scotland, with patients recruited from 424 primary care practices. Eligible patients were aged 60 years or older, with ischaemic heart disease but no history of gout. Participants were randomly assigned (1:1), using a central web-based randomisation system accessed via a web-based application or an interactive voice response system, to receive oral allopurinol up-titrated to a dose of 600 mg daily (300 mg daily in participants with moderate renal impairment at baseline) or to continue usual care. The primary outcome was the composite cardiovascular endpoint of non-fatal myocardial infarction, non-fatal stroke, or cardiovascular death. The hazard ratio (allopurinol vs usual care) in a Cox proportional hazards model was assessed for superiority in a modified intention-to-treat analysis (excluding randomly assigned patients later found to have met one of the exclusion criteria). The safety analysis population included all patients in the modified intention-to-treat usual care group and those who took at least one dose of randomised medication in the allopurinol group. This study is registered with the EU Clinical Trials Register, EudraCT 2013-003559-39, and ISRCTN, ISRCTN32017426. FINDINGS Between Feb 7, 2014, and Oct 2, 2017, 5937 participants were enrolled and then randomly assigned to receive allopurinol or usual care. After exclusion of 216 patients after randomisation, 5721 participants (mean age 72·0 years [SD 6·8], 4321 [75·5%] males, and 5676 [99·2%] white) were included in the modified intention-to-treat population, with 2853 in the allopurinol group and 2868 in the usual care group. Mean follow-up time in the study was 4·8 years (1·5). There was no evidence of a difference between the randomised treatment groups in the rates of the primary endpoint. 314 (11·0%) participants in the allopurinol group (2·47 events per 100 patient-years) and 325 (11·3%) in the usual care group (2·37 events per 100 patient-years) had a primary endpoint (hazard ratio [HR] 1·04 [95% CI 0·89-1·21], p=0·65). 288 (10·1%) participants in the allopurinol group and 303 (10·6%) participants in the usual care group died from any cause (HR 1·02 [95% CI 0·87-1·20], p=0·77). INTERPRETATION In this large, randomised clinical trial in patients aged 60 years or older with ischaemic heart disease but no history of gout, there was no difference in the primary outcome of non-fatal myocardial infarction, non-fatal stroke, or cardiovascular death between participants randomised to allopurinol therapy and those randomised to usual care. FUNDING UK National Institute for Health and Care Research.
Collapse
Affiliation(s)
- Isla S Mackenzie
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK.
| | | | - Ian Ford
- The Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK
| | - Nicola Greenlaw
- The Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK
| | - Filippo Pigazzani
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| | - Amy Rogers
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| | - Allan D Struthers
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| | - Alan G Begg
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| | - Li Wei
- School of Pharmacy, University College London, London, UK
| | - Anthony J Avery
- Centre for Academic Primary Care, School of Medicine, University of Nottingham, Nottingham, UK
| | - Jaspal S Taggar
- Centre for Academic Primary Care, School of Medicine, University of Nottingham, Nottingham, UK
| | | | - Suzanne L Duce
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| | - Rebecca J Barr
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| | | | - Evelien D Rooke
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| | - Jonathan N Townend
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | | | - Thomas M MacDonald
- MEMO Research, Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| |
Collapse
|
12
|
Johnson RJ, Sánchez-Lozada LG, Nakagawa T, Rodriguez-Iturbe B, Tolan D, Gaucher EA, Andrews P, Lanaspa MA. Do thrifty genes exist? Revisiting uricase. Obesity (Silver Spring) 2022; 30:1917-1926. [PMID: 36150210 PMCID: PMC9512363 DOI: 10.1002/oby.23540] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/26/2022] [Accepted: 06/10/2022] [Indexed: 11/07/2022]
Abstract
Sixty years ago, the geneticist James Neel proposed that the epidemics of obesity and diabetes today may have evolutionary roots. Specifically, he suggested that our ancestors may have accumulated mutations during periods of famine that provided a survival advantage at that time. However, the presence of this "thrifty genotype" in today's world, where food is plentiful, would predispose us to obesity and diabetes. The "thrifty gene" hypothesis, attractive to some, has been challenged over the years. The authors have previously postulated that the loss of the uricase gene, resulting in a rise in serum and intracellular uric acid levels, satisfies the criteria of a thrifty genotype mutation. This paper reviews and brings up-to-date the evidence supporting the hypothesis and discusses the current arguments that challenge this hypothesis. Although further studies are needed to test the hypothesis, the evidence supporting a loss of uricase as a thrifty gene is substantial and supports a role for evolutionary biology in the pathogenesis of the current obesity and diabetes epidemics.
Collapse
Affiliation(s)
- Richard J Johnson
- Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO
| | | | | | - Bernardo Rodriguez-Iturbe
- Instituto Nacional de Ciencias Médicas y Nutrición “Salvador Zubirán”, Mexico City, Mexico and INC Ignacio Chavez, Mexico City, Mexico
| | - Dean Tolan
- Biology Department, Boston University, Boston MA
| | - Eric A. Gaucher
- Department of Biology, Georgia State University, Atlanta, GA
| | - Peter Andrews
- Department of Earth Sciences, Natural History Museum, London, UK
| | - Miguel A Lanaspa
- Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO
- Division of Nephrology, Oregon Health Sciences University
| |
Collapse
|
13
|
Saito Y, Tanaka A, Koide Y, Yoshida H, Uchida D, Matsunaga K, Yokota N, Ueyama C, Kobayashi Y, Node K. Impact of febuxostat on visit-to-visit blood pressure variability: insights from the randomised PRIZE Study. RMD Open 2022; 8:rmdopen-2022-002505. [PMID: 36109083 PMCID: PMC9478834 DOI: 10.1136/rmdopen-2022-002505] [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: 06/09/2022] [Accepted: 09/05/2022] [Indexed: 11/05/2022] Open
Abstract
Objectives Although uric acid lowering therapies, including xanthine oxidase (XO) inhibition, may reduce the absolute level of blood pressure (BP), the effect of XO inhibition on BP variability is largely unknown. The aim of the present analysis was to evaluate the impact of febuxostat, an XO inhibitor, on BP variability in a randomised trial setting. Methods This was a subanalysis of the PRIZE Study, a randomised trial to evaluate the potential effect of febuxostat on carotid intima–media thickness progression. Patients with hyperuricemia and carotid plaques were randomly assigned to the febuxostat or control group. During a 24-month period, office BP and pulse rate (PR) were measured ≥3 times. BP and PR variabilities were assessed with SD and coefficient of variation (CV). The effect of febuxostat on BP and PR variabilities was adjusted with age, sex and baseline BP or PR, expressed with 95% CIs. Results A total of 472 patients were included into the present subanalysis. During the 24-month follow-up period, the febuxostat group had a significantly lower adjusted mean systolic BP (128.4 (126.8–130.0) vs 130.7 (129.1–132.2) mm Hg, p=0.04) and CV of systolic BP (7.4 (6.7–8.0) vs 8.2 (7.6–8.8), p=0.04) than the control group. Adjusted SD of PR was also lower in the febuxostat group than their counterpart (5.95 (4.93–6.97) vs 7.33 (6.32–8.33), p=0.04). Conclusion XO inhibition with febuxostat was associated with reduced visit-to-visit BP variability as well as reduced PR variability in patients with hyperuricemia and carotid plaques. Trial registration numbers University Hospital Medical Information Network Clinical Trial Registry (UMIN000012911 and UMIN000041322).
Collapse
Affiliation(s)
- Yuichi Saito
- Chiba University Graduate School of Medicine, Chiba, Japan
| | | | - Yuji Koide
- Nagasaki University Hospital, Nagasaki, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Gruszka K, Drożdż T, Wojciechowska W, Jankowski P, Terlecki M, Bijak M, Hering D, Bilo G, Drożdż D, Rajzer M. Effects of uric acid-lowering therapy in patients with essential arterial hypertension. Blood Press Monit 2022; 27:152-160. [PMID: 35120026 DOI: 10.1097/mbp.0000000000000578] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Asymptomatic hyperuricemia (AHU) is elevated serum uric acid (UA) without symptoms. This study aimed to determine the effects of AHU treatment with allopurinol on selected hypertension-mediated organ damage (HMOD) indices in patients with uncomplicated essential arterial hypertension (AH). METHODS Patients aged 30-70 years with AHU and AH grade 1-2 with adequate blood pressure (BP) control, without previous urate-lowering therapy (ULT), were divided into two groups: (a) ULT (receiving allopurinol) and (b) control (age- and sex-matched patients without ULT). Both received a UA-lowering diet. BP (office, 24 h and central), echocardiographic parameters, carotid intima-media thickness (IMT) and lab tests [high-sensitivity C-reactive protein (hs-CRP)] were measured at baseline and at 6 months follow-up. RESULTS Of 100 participants, 87 (44 ULT, 43 controls) completed the study. At 6 months follow-up, there was a greater reduction in serum UA concentration in the ULT group than in the control group. Patients receiving allopurinol had significant reductions in office systolic and diastolic BP, central systolic BP, pulse pressure, IMT (0.773 ± 0.121 vs. 0.752 ± 0.13 mm, P = 0.044) and hs-CRP (3.36 ± 2.73 vs. 2.74 ± 1.91 mg/L, P = 0.028) compared to controls. Multivariate regression analysis revealed the independent relationship between reduction in IMT and UA lowering (P < 0.026). CONCLUSION In patients with AH and AHU, treatment with allopurinol leads to improvement in BP control and reduction in HMOD intensity, in particular IMT. The decrease in hs-CRP concentration associated with ULT may have a beneficial effect on a patient's long-term prognosis.
Collapse
Affiliation(s)
- Krystian Gruszka
- Jagiellonian University Medical College, 1st Department of Cardiology, Interventional Electrocardiology and Arterial Hypertension, Krakow
| | - Tomasz Drożdż
- Jagiellonian University Medical College, 1st Department of Cardiology, Interventional Electrocardiology and Arterial Hypertension, Krakow
| | - Wiktoria Wojciechowska
- Jagiellonian University Medical College, 1st Department of Cardiology, Interventional Electrocardiology and Arterial Hypertension, Krakow
| | - Piotr Jankowski
- Jagiellonian University Medical College, 1st Department of Cardiology, Interventional Electrocardiology and Arterial Hypertension, Krakow
| | - Michał Terlecki
- Jagiellonian University Medical College, 1st Department of Cardiology, Interventional Electrocardiology and Arterial Hypertension, Krakow
| | - Magdalena Bijak
- Jagiellonian University Medical College, 1st Department of Cardiology, Interventional Electrocardiology and Arterial Hypertension, Krakow
| | - Dagmara Hering
- Department of Hypertension and Diabetology, Medical University of Gdansk, Gdansk, Poland
| | - Grzegorz Bilo
- Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, IRCCS
- Department of Medicine and Surgery, University of Milano-Bicocca, Milan, Italy
| | - Dorota Drożdż
- Jagiellonian University Medical College, Department of Pediatric Nephrology and Hypertension, Krakow, Poland
| | - Marek Rajzer
- Jagiellonian University Medical College, 1st Department of Cardiology, Interventional Electrocardiology and Arterial Hypertension, Krakow
| |
Collapse
|
15
|
Causal Inference of Carnitine on Blood Pressure and potential mediation by uric acid: A mendelian randomization analysis. INTERNATIONAL JOURNAL OF CARDIOLOGY. CARDIOVASCULAR RISK AND PREVENTION 2021; 11:200120. [PMID: 34901954 PMCID: PMC8640447 DOI: 10.1016/j.ijcrp.2021.200120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/11/2021] [Accepted: 11/12/2021] [Indexed: 02/07/2023]
Abstract
Background Dietary change alters blood pressure (BP) but the specific causal dietary elements are unclear. Given previous observational data suggesting serum carnitine or uric acid affect BP, we investigated the role of serum carnitine and serum uric acid concentrations on BP, and considered mediation by lipids and insulin resistance using two-sample bi-directional Mendelian randomization (MR) analysis. Methods We performed MR to characterize bi-directional causal relationships of carnitine or uric acid on cardiometabolic traits. We performed two-sample MR using genome-wide association summary data from separate large-scale genomic analyses of carnitine, uric acid, BP, lipids, and glycemic traits. We used inverse variance weighted (IVW) meta-analysis and MR Egger regression to test for causal relations in the absence and presence of pleiotropy, respectively, and performed sensitivity analyses to identify confounders and intermediates. Results In our analysis, carnitine was directly, causally associated with systolic BP (IVW effect = 0.2, causal p-value = 0.03) but not diastolic BP (IVW causal p = 0.1). Our findings additionally support direct and indirect relationships of carnitine on TG and on uric acid. No causal associations of carnitine were found with glycemic traits. Uric acid was not associated with BP, nor TG. Conclusion Two-sample bi-directional MR demonstrated an unconfounded causal effect of carnitine, but not uric acid, on systolic but not diastolic BP, suggesting a role of carnitine in arterial stiffness. Carnitine, but not uric acid, also has direct and indirect effects on TG but are independent of the causal effect of carnitine on systolic BP.
Collapse
|
16
|
Tai CJ, Wu CC, Lee KT, Tseng TG, Wang HC, Chang FR, Yang YH. The Impact of Urate-Lowering Therapy in Post-Myocardial Infarction Patients: Insights from a Population-Based, Propensity Score-Matched Analysis. Clin Pharmacol Ther 2021; 111:655-663. [PMID: 34719019 PMCID: PMC9298734 DOI: 10.1002/cpt.2473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 10/24/2021] [Indexed: 11/08/2022]
Abstract
The role of urate‐lowering therapy (ULT) for the primary prevention of cardiovascular (CV) events has been widely discussed, but its evidence for the secondary prevention of myocardial infarction (MI) is limited. Therefore, we conduct a population‐based, propensity score‐matched cohort study to investigate the CV outcomes among patients with post‐MI with and without ULT. A total of 19,042 newly diagnosed in‐hospital patients with MI were selected using the Taiwan National Health Insurance Database between January 1, 2005, and December 31, 2016. After 1:1 propensity score matching with covariates, patients with MI with (n = 963) and without (n = 963) ULT were selected for further analysis. The primary outcome was the all‐cause mortality and the secondary outcomes were composite CV outcomes, including hospitalization for recurrent MI, stroke, heart failure, and cardiac arrhythmias. ULT users were associated with lower all‐cause mortality (adjusted hazard ratio (adjHR), 0.67; 95% confidence interval (CI), 0.51–0.87) compared to the ULT nonusers. In addition, ULT users had a significantly lower risk of recurrent MI, which needed revascularization by percutaneous coronary intervention or coronary artery bypass grafting (adjHR, 0.67; 95% CI, 0.53–0.86) than the ULT nonusers. The primary and secondary outcomes were not different between patients with post‐MI who received uricosuric agents and xanthine oxidase inhibitors. The anti‐inflammatory effect of ULT plays an essential role in MI management. From a real‐world setting, this study shows that ULT is associated with the lower risk of all‐cause mortality in patients with post‐MI. In addition, the result shows the possible lower incidence of repeat revascularization procedures in the ULT users.
Collapse
Affiliation(s)
- Chi-Jung Tai
- Department of Family Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Family Medicine, Pingtung Hospital, Ministry of Health and Welfare, Pingtung, Taiwan
| | - Chin-Chung Wu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kun-Tai Lee
- Cardiovascular Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tzyy-Guey Tseng
- Department of Family Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hui-Chun Wang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung, Taiwan.,Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung, Taiwan.,Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-Hsin Yang
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.,National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
| |
Collapse
|
17
|
Maloberti A, Biolcati M, Ruzzenenti G, Giani V, Leidi F, Monticelli M, Algeri M, Scarpellini S, Nava S, Soriano F, Oreglia J, Sacco A, Morici N, Oliva F, Piani F, Borghi C, Giannattasio C. The Role of Uric Acid in Acute and Chronic Coronary Syndromes. J Clin Med 2021; 10:jcm10204750. [PMID: 34682873 PMCID: PMC8540994 DOI: 10.3390/jcm10204750] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/12/2021] [Accepted: 10/13/2021] [Indexed: 12/14/2022] Open
Abstract
Uric acid (UA) is the final product of the catabolism of endogenous and exogenous purine nucleotides. While its association with articular gout and kidney disease has been known for a long time, new data have demonstrated that UA is also related to cardiovascular (CV) diseases. UA has been identified as a significant determinant of many different outcomes, such as all-cause and CV mortality, and also of CV events (mainly Acute Coronary Syndromes (ACS) and even strokes). Furthermore, UA has been related to the development of Heart Failure, and to a higher mortality in decompensated patients, as well as to the onset of atrial fibrillation. After a brief introduction on the general role of UA in CV disorders, this review will be focused on UA's relationship with CV outcomes, as well as on the specific features of patients with ACS and Chronic Coronary Syndrome. Finally, two issues which remain open will be discussed: the first is about the identification of a CV UA cut-off value, while the second concerns the possibility that the pharmacological reduction of UA is able to lower the incidence of CV events.
Collapse
Affiliation(s)
- Alessandro Maloberti
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy; (M.B.); (G.R.); (V.G.); (F.L.); (M.M.); (C.G.)
- Cardiology 4, ASST GOM Niguarda Hospital, 20121 Milan, Italy; (M.A.); (S.S.)
- Correspondence: ; Tel.: +39-026-444-2141; Fax: +39-026-444-2566
| | - Marco Biolcati
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy; (M.B.); (G.R.); (V.G.); (F.L.); (M.M.); (C.G.)
- Cardiology 4, ASST GOM Niguarda Hospital, 20121 Milan, Italy; (M.A.); (S.S.)
| | - Giacomo Ruzzenenti
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy; (M.B.); (G.R.); (V.G.); (F.L.); (M.M.); (C.G.)
- Cardiology 4, ASST GOM Niguarda Hospital, 20121 Milan, Italy; (M.A.); (S.S.)
| | - Valentina Giani
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy; (M.B.); (G.R.); (V.G.); (F.L.); (M.M.); (C.G.)
- Cardiology 4, ASST GOM Niguarda Hospital, 20121 Milan, Italy; (M.A.); (S.S.)
| | - Filippo Leidi
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy; (M.B.); (G.R.); (V.G.); (F.L.); (M.M.); (C.G.)
- Cardiology 4, ASST GOM Niguarda Hospital, 20121 Milan, Italy; (M.A.); (S.S.)
| | - Massimiliano Monticelli
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy; (M.B.); (G.R.); (V.G.); (F.L.); (M.M.); (C.G.)
- Cardiology 4, ASST GOM Niguarda Hospital, 20121 Milan, Italy; (M.A.); (S.S.)
| | - Michela Algeri
- Cardiology 4, ASST GOM Niguarda Hospital, 20121 Milan, Italy; (M.A.); (S.S.)
| | - Sara Scarpellini
- Cardiology 4, ASST GOM Niguarda Hospital, 20121 Milan, Italy; (M.A.); (S.S.)
| | - Stefano Nava
- Cardiology 1, ASST GOM Niguarda Hospital, 20121 Milan, Italy; (S.N.); (F.S.); (J.O.); (A.S.); (N.M.); (F.O.)
| | - Francesco Soriano
- Cardiology 1, ASST GOM Niguarda Hospital, 20121 Milan, Italy; (S.N.); (F.S.); (J.O.); (A.S.); (N.M.); (F.O.)
| | - Jacopo Oreglia
- Cardiology 1, ASST GOM Niguarda Hospital, 20121 Milan, Italy; (S.N.); (F.S.); (J.O.); (A.S.); (N.M.); (F.O.)
| | - Alice Sacco
- Cardiology 1, ASST GOM Niguarda Hospital, 20121 Milan, Italy; (S.N.); (F.S.); (J.O.); (A.S.); (N.M.); (F.O.)
| | - Nuccia Morici
- Cardiology 1, ASST GOM Niguarda Hospital, 20121 Milan, Italy; (S.N.); (F.S.); (J.O.); (A.S.); (N.M.); (F.O.)
| | - Fabrizio Oliva
- Cardiology 1, ASST GOM Niguarda Hospital, 20121 Milan, Italy; (S.N.); (F.S.); (J.O.); (A.S.); (N.M.); (F.O.)
| | - Federica Piani
- School of Medicine and Surgery, University of Bologna—IRCCS Policlinico S. Orsola, 40138 Bologna, Italy; (F.P.); (C.B.)
| | - Claudio Borghi
- School of Medicine and Surgery, University of Bologna—IRCCS Policlinico S. Orsola, 40138 Bologna, Italy; (F.P.); (C.B.)
| | - Cristina Giannattasio
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy; (M.B.); (G.R.); (V.G.); (F.L.); (M.M.); (C.G.)
- Cardiology 4, ASST GOM Niguarda Hospital, 20121 Milan, Italy; (M.A.); (S.S.)
| |
Collapse
|
18
|
Kawachi Y, Fujishima Y, Nishizawa H, Nakamura T, Akari S, Murase T, Saito T, Miyazaki Y, Nagao H, Fukuda S, Kita S, Katakami N, Doki Y, Maeda N, Shimomura I. Increased plasma XOR activity induced by NAFLD/NASH and its possible involvement in vascular neointimal proliferation. JCI Insight 2021; 6:e144762. [PMID: 34494551 PMCID: PMC8492303 DOI: 10.1172/jci.insight.144762] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 07/21/2021] [Indexed: 12/20/2022] Open
Abstract
Xanthine oxidoreductase (XOR) is an enzyme that catalyzes hypoxanthine to xanthine and xanthine to uric acid, respectively. However, the underlying mechanisms of increased plasma XOR and its pathological roles in systemic diseases, such as atherosclerosis, are not fully understood. In this study, we found that changes in plasma XOR activity after bariatric surgery closely associated with those in liver enzymes, but not with those in BMI. In a mouse model of nonalcoholic fatty liver disease/steatohepatitis (NAFLD/NASH), plasma XOR activity markedly increased. Besides, purine catabolism was accelerated in the plasma per se of NASH mice and human patients with high XOR activity. In our NASH mice, we observed an increased vascular neointima formation consisting of dedifferentiated vascular smooth muscle cells (SMCs), which was significantly attenuated by topiroxostat, a selective XOR inhibitor. In vitro, human liver S9–derived XOR promoted proliferation of SMCs with phenotypic modulation and induced ROS production by catabolizing hypoxanthine released from human endothelial cells. Collectively, the results from human and mouse models suggest that increased plasma XOR activity, mainly explained by excess hepatic leakage, was involved in the pathogenesis of vascular injury, especially in NAFLD/NASH conditions.
Collapse
Affiliation(s)
- Yusuke Kawachi
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yuya Fujishima
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hitoshi Nishizawa
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | | | - Seigo Akari
- Sanwa Kagaku Kenkyusho Co., Ltd., Inabe, Mie, Japan
| | | | | | | | - Hirofumi Nagao
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Shiro Fukuda
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Shunbun Kita
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan.,Department of Adipose Management, and
| | - Naoto Katakami
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan.,Department of Metabolism and Atherosclerosis, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | | | - Norikazu Maeda
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan.,Department of Metabolism and Atherosclerosis, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Iichiro Shimomura
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| |
Collapse
|
19
|
Mannarino MR, Pirro M, Gigante B, Savonen K, Kurl S, Giral P, Smit A, Veglia F, Tremoli E, Baldassarre D. Association Between Uric Acid, Carotid Intima-Media Thickness, and Cardiovascular Events: Prospective Results From the IMPROVE Study. J Am Heart Assoc 2021; 10:e020419. [PMID: 33998285 PMCID: PMC8483552 DOI: 10.1161/jaha.120.020419] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Background The association between elevated serum uric acid (SUA), cardiovascular disease (CVD) risk, and carotid atherosclerosis has long been explored, and contrasting results have been reported. Therefore, the role of SUA as an independent risk factor for vascular events (VEs) and carotid atherosclerosis deserves further attention. We investigated the relationship between SUA, incident VEs, carotid intima-media thickness (cIMT), and cIMT progression in subjects at moderate-to-high CVD risk. Methods and Results In the IMPROVE (IMT-Progression as Predictors of VEs) study, 3686 participants (median age 64 years; 48% men) with ≥ 3 vascular risk factors, free from VEs at baseline, were grouped according to SUA quartiles (division points: 244-284-328 µmol/L in women, 295-336-385 µmol/L in men). Carotid-IMT and its 15-month progression, along with incident VEs, were recorded. A U-shaped association between SUA and VEs was observed in men, with 2.4-fold (P = 0.004) and 2.5-fold (P = 0.002) increased CVD risk in the first and fourth SUA quartiles as compared with the second. Adjusted hazard ratios (HRs) for cerebro-VEs in men were the highest (first and fourth quartile versus second: HR, 5.3, P = 0.010 and HR, 4.4, P = 0.023, respectively). SUA level was independently associated with cIMT progression in men (β = 0.068, P = 0.014). No significant association between SUA levels, CVD end points, and cIMT progression were found in women. Conclusions Both low and high SUA levels are associated with an increased risk of VEs in men at moderate-to-high CVD risk but not in women. Only elevated SUA levels predict cIMT progression and at a lesser but not significant extent in women.
Collapse
Affiliation(s)
- Massimo R Mannarino
- Unit of Internal Medicine, Angiology and Arteriosclerosis Diseases Department of Medicine and Surgery University of Perugia Perugia Italy
| | - Matteo Pirro
- Unit of Internal Medicine, Angiology and Arteriosclerosis Diseases Department of Medicine and Surgery University of Perugia Perugia Italy
| | - Bruna Gigante
- Unit of Cardiovascular Epidemiology Institute of Environmental Medicine Stockholm Sweden.,Division of Cardiovascular Medicine Department of Clinical Sciences Danderyd HospitalKarolinska Institutet Stockholm Sweden
| | - Kai Savonen
- Foundation for Research in Health Exercise and Nutrition Kuopio & Research Institute of Exercise Medicine Kuopio Finland.,Department of Clinical Physiology and Nuclear Medicine Kuopio University Hospital Kuopio Finland
| | - Sudhir Kurl
- Institute of Public Health and Clinical Nutrition University of Eastern Finland Kuopio Finland
| | - Philippe Giral
- Unités de Prévention Cardiovasculaire Service Endocrinologie-Metabolisme Assistance Publique - Hopitaux de ParisGroupe Hôpitalier Pitie-Salpetriere Paris France
| | - Andries Smit
- Department of Medicine University Medical Center Groningen Groningen the Netherlands.,Department of Medicine Isala Clinics Zwolle Zwolle the Netherlands
| | - Fabrizio Veglia
- Centro Cardiologico MonzinoIstituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Milan Italy
| | - Elena Tremoli
- Centro Cardiologico MonzinoIstituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Milan Italy
| | - Damiano Baldassarre
- Centro Cardiologico MonzinoIstituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Milan Italy.,Department of Medical Biotechnology and Translational Medicine Università degli Studi di Milano Milan Italy
| | | |
Collapse
|
20
|
You H, Chen K, Han P, Yue C, Zhao X. U-Shaped Relationship Between Cardiovascular Mortality and Serum Uric Acid May Be Attributed to Stroke- and Heart-Specific Mortality, Respectively, Among Hypertensive Patients: A Nationally Representative Cohort Study. Med Sci Monit 2021; 27:e928937. [PMID: 33534782 PMCID: PMC7869412 DOI: 10.12659/msm.928937] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Serum uric acid (UA) is involved in the development of hypertension. However, its impact on mortality in hypertension remains unclear. We aimed to assess the association of cardiovascular and all-cause mortality with UA in a hypertensive population. MATERIAL AND METHODS This study included 15 583 hypertensive patients from the NHANES study during 1999-2014. Weighted Cox regression analyses and cubic spline fitting were used to assess the relationship between UA and mortality risk. RESULTS Over a median follow-up of 7.4 years (116 351 person-years), a total of 3291 deaths occurred. Mortality was examined according to 5 predefined UA levels: £3.5, 3.5-5, 5-6, 6-7.5, and >7.5 mg/dL. In multivariable analysis with 5-6 mg/dL as a reference, the hazard ratios (95% confidence interval) of total mortality across the 5 groups were 1.40 (1.05-1.88), 1.08 (0.95-1.21), 1.00 (reference), 1.14 (1.02-1.29), and 1.74 (1.50-2.02), respectively. According to a restricted cubic spline, we noted a U-shaped relationship between UA and total mortality. The U-shaped relationship between UA and cardiovascular mortality remained in both females and males. The increased cardiovascular mortality in the lowest and highest UA groups was attributed to stroke and heart-specific mortality, respectively. However, serum UA was not significantly associated with cancer mortality. CONCLUSIONS Our findings showed a U-shaped relationship between serum UA levels and total and cardiovascular mortality in patients with hypertension. Furthermore, low UA was associated with stroke mortality, while higher UA was associated with heart-related mortality. Further research is needed to identify the potential mechanisms of UA in hypertension.
Collapse
Affiliation(s)
- Hao You
- Department of Cardiac Surgery, Cardiovascular Hospital of Xiamen University, Xiamen, Fujian, China (mainland)
| | - Kegong Chen
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University, The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin, Heilongjiang, China (mainland)
| | - Pengfei Han
- Department of Pharmacy, Hebei Eye Hospital, Xingtai, Hebei, China (mainland)
| | - ChaoFu Yue
- Department of Critical Care Medicine, First People's Hospital of Qujing City, Qujing, Yunnan, China (mainland)
| | - Xia Zhao
- Department of Critical Rehabilitation, Xiamen Taihe Rehabilitation Hospital, Xiamen, Fujian, China (mainland)
| |
Collapse
|
21
|
Uric Acid and Hypertension: Prognostic Role and Guide for Treatment. J Clin Med 2021; 10:jcm10030448. [PMID: 33498870 PMCID: PMC7865830 DOI: 10.3390/jcm10030448] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/19/2021] [Accepted: 01/21/2021] [Indexed: 02/07/2023] Open
Abstract
The relationship between serum uric acid (SUA) and hypertension has been a subject of increasing interest since the 1870 discovery by Frederick Akbar Mahomed. Several epidemiological studies have shown a strong association between high SUA levels and the presence or the development of hypertension. Genetic analyses have found that xanthine oxidoreductase (XOR) genetic polymorphisms are associated with hypertension. However, genetic studies on urate transporters and Mendelian randomization studies failed to demonstrate a causal relationship between SUA and hypertension. Results from clinical trials on the role of urate-lowering therapy in the management of patients with hypertension are not uniform. Our study sought to analyze the prognostic and therapeutic role of SUA in the hypertensive disease, from uric acid (UA) biology to clinical trials on urate-lowering therapies.
Collapse
|
22
|
Saito Y, Tanaka A, Node K, Kobayashi Y. Uric acid and cardiovascular disease: A clinical review. J Cardiol 2020; 78:51-57. [PMID: 33388217 DOI: 10.1016/j.jjcc.2020.12.013] [Citation(s) in RCA: 125] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 12/18/2020] [Indexed: 01/12/2023]
Abstract
Uric acid, the end-product of purine metabolism in humans, is not only a cause of gout, but also may play roles in developing cardiovascular diseases such as hypertension, atrial fibrillation, chronic kidney disease, heart failure, coronary artery disease, and cardiovascular death. Several clinical investigations have reported serum uric acid as a predictive marker for cardiovascular outcomes. Although the causal relationship of hyperuricemia to cardiovascular diseases remains controversial, there has been a growing interest in uric acid because of the increased prevalence of hyperuricemia worldwide. This review article summarizes current evidence concerning the relation between hyperuricemia and cardiovascular diseases.
Collapse
Affiliation(s)
- Yuichi Saito
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8677, Japan.
| | - Atsushi Tanaka
- Department of Cardiovascular Medicine, Saga University, Saga, Japan
| | - Koichi Node
- Department of Cardiovascular Medicine, Saga University, Saga, Japan
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8677, Japan
| |
Collapse
|
23
|
Hyperuricemia in Kidney Disease: A Major Risk Factor for Cardiovascular Events, Vascular Calcification, and Renal Damage. Semin Nephrol 2020; 40:574-585. [PMID: 33678312 DOI: 10.1016/j.semnephrol.2020.12.004] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Kidney disease, especially when it is associated with a reduction in estimated glomerular filtration rate, can be associated with an increase in serum urate (uric acid), suggesting that hyperuricemia in subjects with kidney disease may be a strictly secondary phenomenon. Mendelian randomization studies that evaluate genetic scores regulating serum urate also generally have not found evidence that serum urate is a causal risk factor in chronic kidney disease. Nevertheless, this is countered by a large number of epidemiologic, experimental, and clinical studies that have suggested a potentially important role for uric acid in kidney disease and cardiovascular disease. Here, we review the topic in detail. Overall, the studies strongly suggest that hyperuricemia does have an important pathogenic role that likely is driven by intracellular urate levels. An exception may be the role of extracellular uric acid in atherosclerosis and vascular calcification. One of the more striking findings on reviewing the literature is that the primary benefit of lowering serum urate in subjects with CKD is not by slowing the progression of renal disease, but rather by reducing the incidence of cardiovascular events and mortality. We recommend large-scale clinical trials to determine if there is a benefit in lowering serum urate in hyperuricemic subjects in acute and chronic kidney disease and in the reduction of cardiovascular morbidity and mortality in subjects with end-stage chronic kidney disease.
Collapse
|
24
|
Chen Q, Wang Z, Zhou J, Chen Z, Li Y, Li S, Zhao H, Badve SV, Lv J. Effect of Urate-Lowering Therapy on Cardiovascular and Kidney Outcomes: A Systematic Review and Meta-Analysis. Clin J Am Soc Nephrol 2020; 15:1576-1586. [PMID: 33055192 PMCID: PMC7646244 DOI: 10.2215/cjn.05190420] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 09/03/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND OBJECTIVES Several clinical practice guidelines noted the potential benefits of urate-lowering therapy on cardiovascular disease and CKD progression; however, the effect of this regimen remains uncertain. In this systematic review, we aimed to evaluate the efficacy of urate-lowering therapy on major adverse cardiovascular events, all-cause mortality, kidney failure events, BP, and GFR. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS We systematically searched MEDLINE, Embase, and the Cochrane databases for trials published through July 2020. We included prospective, randomized, controlled trials assessing the effects of urate-lowering therapy for at least 6 months on cardiovascular or kidney outcomes. Relevant information was extracted into a spreadsheet by two authors independently. Treatment effects were summarized using random effects meta-analysis. RESULTS We identified 28 trials including a total of 6458 participants with 506 major adverse cardiovascular events and 266 kidney failure events. Overall urate-lowering therapy did not show benefits on major adverse cardiovascular events (risk ratio, 0.93; 95% confidence interval, 0.74 to 1.18) and all-cause mortality (risk ratio, 1.04; 95% confidence interval, 0.78 to 1.39) or kidney failure (risk ratio, 0.97; 95% confidence interval, 0.61 to 1.54). Nevertheless, urate-lowering therapy attenuated the decline in the slope of GFR (weighted mean difference, 1.18 ml/min per 1.73 m2 per year; 95% confidence interval, 0.44 to 1.91) and lowered the mean BP (systolic BP: weighted mean difference, -3.45 mm Hg; 95% confidence interval, -6.10 to -0.80; diastolic BP: weighted mean difference, -2.02 mm Hg; 95% confidence interval, -3.25 to -0.78). There was no significant difference (risk ratio, 1.01; 95% confidence interval, 0.94 to 1.08) in the risk of adverse events between the participants receiving urate-lowering therapy and the control group. CONCLUSIONS Urate-lowering therapy did not produce benefits on the clinical outcomes, including major adverse cardiovascular events, all-cause mortality, and kidney failure. Thus, there is insufficient evidence to support urate lowering in patients to improve kidney and cardiovascular outcomes.
Collapse
Affiliation(s)
- Qi Chen
- Department of Nephrology, Dongzhimen Hospital, The First Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Zi Wang
- Renal Division, Peking University First Hospital, Institute of Nephrology, Peking University and Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
| | - Jingwei Zhou
- Department of Nephrology, Dongzhimen Hospital, The First Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Zhenjie Chen
- Department of Nephrology, Dongzhimen Hospital, The First Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Yan Li
- Department of Nephrology, Dongzhimen Hospital, The First Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Shichao Li
- Department of Nephrology, Dongzhimen Hospital, The First Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Hukang Zhao
- Department of Nephrology, Dongzhimen Hospital, The First Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Sunil V Badve
- Renal and Metabolic Division, The George Institute for Global Health, University of New South Wales, Sydney, New South Wales, Australia.,Department of Renal Medicine, St. George Hospital, Sydney, New South Wales, Australia
| | - Jicheng Lv
- Renal Division, Peking University First Hospital, Institute of Nephrology, Peking University and Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
| |
Collapse
|
25
|
Abstract
ABSTRACT Cerebral small vessel disease (SVD) is a common global brain disease that causes cognitive impairment, ischemic or hemorrhagic stroke, problems with mobility, and neuropsychiatric symptoms. The brain damage, seen as focal white and deep grey matter lesions on brain magnetic resonance imaging (MRI) or computed tomography (CT), typically accumulates "covertly" and may reach an advanced state before being detected incidentally on brain scanning or causing symptoms. Patients have typically presented to different clinical services or been recruited into research focused on one clinical manifestation, perhaps explaining a lack of awareness, until recently, of the full range and complexity of SVD.In this review, we discuss the varied clinical presentations, established and emerging risk factors, relationship to SVD features on MRI or CT, and the current state of knowledge on the effectiveness of a wide range of pharmacological and lifestyle interventions. The core message is that effective assessment and clinical management of patients with SVD, as well as future advances in diagnosis, care, and treatment, will require a more "joined-up"' approach. This approach should integrate clinical expertise in stroke neurology, cognitive, and physical dysfunctions. It requires more clinical trials in order to improve pharmacological interventions, lifestyle and dietary modifications. A deeper understanding of the pathophysiology of SVD is required to steer the identification of novel interventions. An essential prerequisite to accelerating clinical trials is to improve the consistency, and standardization of clinical, cognitive and neuroimaging endpoints.
Collapse
|
26
|
Abstract
BACKGROUND This is the second update of this systematic review. High blood pressure represents a major public health problem. Worldwide, approximately one-fourth of the adult population has hypertension. Epidemiological and experimental studies suggest a link between hyperuricaemia and hypertension. Hyperuricaemia affects 25% to 40% of those with untreated hypertension; a much lower prevalence has been reported in those with normotension or in the general population. However, whether lowering serum uric acid (UA) might lower blood pressure (BP), is an unanswered question. OBJECTIVES To determine whether UA-lowering agents reduce BP in people with primary hypertension or prehypertension, compared with placebo. SEARCH METHODS The Cochrane Hypertension Information Specialist searched the following databases for randomised controlled trials up to May 2020: the Cochrane Hypertension Specialised Register, CENTRAL 2018, Issue 12, MEDLINE (from 1946), Embase (from 1974), the World Health Organization International Clinical Trials Registry Platform, and ClinicalTrials.gov. We also searched LILACS (1982 to May 2020), and contacted authors of relevant papers regarding further published and unpublished work. The searches had no language or date restrictions. SELECTION CRITERIA To be included in this updated review, the studies had to meet the following criteria: 1) randomised or quasi-randomised, with a group assigned to receive a UA-lowering agent and another group assigned to receive placebo; 2) double-blind, single-blind, or open-label; 3) parallel or cross-over trial design; 4) cross-over trials had to have a washout period of at least two weeks; 5) minimum treatment duration of four weeks; 6) participants had to have a diagnosis of essential hypertension or prehypertension plus hyperuricaemia (serum UA greater than 6 mg/dL in women, 7 mg/dL in men, and 5.5 mg/dL in children or adolescents); 7) outcome measures included change in 24-hour ambulatory systolic or diastolic BP, or both; or clinic-measured systolic or diastolic BP, or both. DATA COLLECTION AND ANALYSIS The two review authors independently collected the data using a data extraction form, and resolved any disagreements via discussion. We assessed risk of bias using the Cochrane 'Risk of bias' tool. We assessed the certainty of the evidence using the GRADE approach. MAIN RESULTS In this review update, we screened 722 records, selected 26 full-text reports for evaluation. We identified no ongoing studies and did not add any new studies. We included three randomised controlled trials (RCTs), enrolling 211 people with hypertension or prehypertension, plus hyperuricaemia. Low-certainty evidence from three RCTs found inconclusive results between those who received UA-lowering drugs and placebo, in 24-hour ambulatory systolic (MD -6.2 mmHg, 95% CI -12.8 to 0.5) or diastolic BP (-3.9 mmHg, 95% CI -9.2 to 1.4). Low-certainty evidence from two RCTs found that UA-lowering drugs reduced clinic-measured systolic BP (-8.43 mmHg, 95% CI -15.24 to -1.62) but results for clinic-measured diastolic BP were inconclusive (-6.45 mmHg, 95% CI -13.60 to 0.70). High-certainty evidence from three RCTs found that serum UA levels were reduced by 3.1 mg/dL (95% CI 2.4 to 3.8) in the participants that received UA-lowering drugs. Low-certainty evidence from three RCTs found inconclusive results regarding the occurrence of adverse events between those who received UA-lowering drugs and placebo (RR 1.86, 95% CI 0.43 to 8.10). AUTHORS' CONCLUSIONS In this updated Cochrane Review, the current RCT data are insufficient to know whether UA-lowering therapy lowers BP. More studies are needed.
Collapse
|
27
|
Willeit P, Tschiderer L, Allara E, Reuber K, Seekircher L, Gao L, Liao X, Lonn E, Gerstein HC, Yusuf S, Brouwers FP, Asselbergs FW, van Gilst W, Anderssen SA, Grobbee DE, Kastelein JJP, Visseren FLJ, Ntaios G, Hatzitolios AI, Savopoulos C, Nieuwkerk PT, Stroes E, Walters M, Higgins P, Dawson J, Gresele P, Guglielmini G, Migliacci R, Ezhov M, Safarova M, Balakhonova T, Sato E, Amaha M, Nakamura T, Kapellas K, Jamieson LM, Skilton M, Blumenthal JA, Hinderliter A, Sherwood A, Smith PJ, van Agtmael MA, Reiss P, van Vonderen MGA, Kiechl S, Klingenschmid G, Sitzer M, Stehouwer CDA, Uthoff H, Zou ZY, Cunha AR, Neves MF, Witham MD, Park HW, Lee MS, Bae JH, Bernal E, Wachtell K, Kjeldsen SE, Olsen MH, Preiss D, Sattar N, Beishuizen E, Huisman MV, Espeland MA, Schmidt C, Agewall S, Ok E, Aşçi G, de Groot E, Grooteman MPC, Blankestijn PJ, Bots ML, Sweeting MJ, Thompson SG, Lorenz MW. Carotid Intima-Media Thickness Progression as Surrogate Marker for Cardiovascular Risk: Meta-Analysis of 119 Clinical Trials Involving 100 667 Patients. Circulation 2020; 142:621-642. [PMID: 32546049 PMCID: PMC7115957 DOI: 10.1161/circulationaha.120.046361] [Citation(s) in RCA: 240] [Impact Index Per Article: 60.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 07/13/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND To quantify the association between effects of interventions on carotid intima-media thickness (cIMT) progression and their effects on cardiovascular disease (CVD) risk. METHODS We systematically collated data from randomized, controlled trials. cIMT was assessed as the mean value at the common-carotid-artery; if unavailable, the maximum value at the common-carotid-artery or other cIMT measures were used. The primary outcome was a combined CVD end point defined as myocardial infarction, stroke, revascularization procedures, or fatal CVD. We estimated intervention effects on cIMT progression and incident CVD for each trial, before relating the 2 using a Bayesian meta-regression approach. RESULTS We analyzed data of 119 randomized, controlled trials involving 100 667 patients (mean age 62 years, 42% female). Over an average follow-up of 3.7 years, 12 038 patients developed the combined CVD end point. Across all interventions, each 10 μm/y reduction of cIMT progression resulted in a relative risk for CVD of 0.91 (95% Credible Interval, 0.87-0.94), with an additional relative risk for CVD of 0.92 (0.87-0.97) being achieved independent of cIMT progression. Taken together, we estimated that interventions reducing cIMT progression by 10, 20, 30, or 40 μm/y would yield relative risks of 0.84 (0.75-0.93), 0.76 (0.67-0.85), 0.69 (0.59-0.79), or 0.63 (0.52-0.74), respectively. Results were similar when grouping trials by type of intervention, time of conduct, time to ultrasound follow-up, availability of individual-participant data, primary versus secondary prevention trials, type of cIMT measurement, and proportion of female patients. CONCLUSIONS The extent of intervention effects on cIMT progression predicted the degree of CVD risk reduction. This provides a missing link supporting the usefulness of cIMT progression as a surrogate marker for CVD risk in clinical trials.
Collapse
Affiliation(s)
- Peter Willeit
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Lena Tschiderer
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Elias Allara
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
- National Institute for Health Research Blood and Transplant Research Unit in Donor Health and Genomics, University of Cambridge, Cambridge, UK
| | - Kathrin Reuber
- Department of Neurology, Goethe University, Frankfurt am Main, Germany
| | - Lisa Seekircher
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Lu Gao
- MRC Biostatistics Unit, University of Cambridge, Cambridge, UK
| | - Ximing Liao
- Department of Neurology, Goethe University, Frankfurt am Main, Germany
| | - Eva Lonn
- Department of Medicine and Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
- Hamilton General Hospital, Hamilton, Ontario, Canada
| | - Hertzel C. Gerstein
- Department of Medicine and Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
- Hamilton General Hospital, Hamilton, Ontario, Canada
| | - Salim Yusuf
- Department of Medicine and Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
- Hamilton General Hospital, Hamilton, Ontario, Canada
| | - Frank P. Brouwers
- Department of Cardiology, Haga Teaching Hospital, the Hague, the Netherlands
| | - Folkert W. Asselbergs
- Department of Cardiology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Wiek van Gilst
- Department of Experimental Cardiology, University Medical Center Groningen, Groningen, the Netherlands
| | - Sigmund A. Anderssen
- Department of Sports Medicine, Norwegian School of Sports Sciences, Oslo, Norway
| | - Diederick E. Grobbee
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands
| | - John J. P. Kastelein
- Department of Vascular Medicine, Academic Medical Centre, University of Amsterdam, Amsterdam, the Netherlands
| | - Frank L. J. Visseren
- Department of Vascular Medicine, University Medical Center Utrecht, Utrecht, the Netherlands
| | - George Ntaios
- Department of Medicine, University of Thessaly, Larissa, Greece
| | - Apostolos I. Hatzitolios
- 1st Propedeutic Department of Internal Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Christos Savopoulos
- 1st Propedeutic Department of Internal Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Pythia T. Nieuwkerk
- Department of Medical Psychology, Amsterdam UMC- Location AMC, Amsterdam, the Netherlands
| | - Erik Stroes
- Department of Vascular Medicine, Academic Medical Centre, University of Amsterdam, Amsterdam, the Netherlands
| | - Matthew Walters
- School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - Peter Higgins
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Jesse Dawson
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Paolo Gresele
- Division of Internal and Cardiovascular Medicine, Department of Medicine, University of Perugia, Perugia, Italy
| | - Giuseppe Guglielmini
- Division of Internal and Cardiovascular Medicine, Department of Medicine, University of Perugia, Perugia, Italy
| | - Rino Migliacci
- Division of Internal Medicine, Cortona Hospital, Cortona, Italy
| | - Marat Ezhov
- Laboratory of Lipid Disorders, National Medical Research Center of Cardiology, Moscow, Russia
| | - Maya Safarova
- Atherosclerosis Department, National Medical Research Center of Cardiology, Moscow, Russia
| | - Tatyana Balakhonova
- Ultrasound Vascular Laboratory, National Medical Research Center of Cardiology, Moscow, Russia
| | - Eiichi Sato
- Division of Nephrology, Shinmatsudo Central General Hospital, Chiba, Japan
| | - Mayuko Amaha
- Division of Nephrology, Shinmatsudo Central General Hospital, Chiba, Japan
| | - Tsukasa Nakamura
- Division of Nephrology, Shinmatsudo Central General Hospital, Chiba, Japan
| | - Kostas Kapellas
- Australian Research Centre for Population Oral Health, University of Adelaide, Adelaide, SA, Australia
| | - Lisa M. Jamieson
- Australian Research Centre for Population Oral Health, University of Adelaide, Adelaide, SA, Australia
| | - Michael Skilton
- Boden Institute of Obesity, Nutrition, Exercise and Eating Disorders, University of Sydney, Sydney, NSW, Australia
| | - James A. Blumenthal
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
| | - Alan Hinderliter
- Department of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Andrew Sherwood
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
| | - Patrick J. Smith
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
| | - Michiel A. van Agtmael
- Department of Internal Medicine, Amsterdam UMC, Vrije Universiteit, Amsterdam, the Netherlands
| | - Peter Reiss
- Department of Global Health, Amsterdam UMC- Location AMC, Amsterdam, the Netherlands
- Amsterdam Institute for Global Health and Development, University of Amsterdam, Amsterdam, the Netherlands
| | | | - Stefan Kiechl
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
- VASCage GmbH, Research Centre on Vascular Ageing and Stroke, Innsbruck, Austria
| | | | - Matthias Sitzer
- Department of Neurology, Goethe University, Frankfurt am Main, Germany
- Department of Neurology, Klinikum Herford, Herford, Germany
| | - Coen D. A. Stehouwer
- Department of Internal Medicine and Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Maastricht, the Netherlands
| | - Heiko Uthoff
- Department of Angiology, University Hospital Basel, Basel, Switzerland
| | - Zhi-Yong Zou
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
| | - Ana R. Cunha
- Department of Clinical Medicine, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mario F. Neves
- Department of Clinical Medicine, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Miles D. Witham
- AGE Research Group, NIHR Newcastle Biomedical Research Centre, Newcastle University and Newcastle-upon-Tyne Hospitals Trust, Newcastle, UK
| | - Hyun-Woong Park
- Department of Internal Medicine, Gyeongsang National University Hospital, Daejeon, South Korea
| | - Moo-Sik Lee
- Department of Internal Medicine, Gyeongsang National University Hospital, Daejeon, South Korea
- Department of Preventive Medicine, Konyang University, Jinju, South Korea
| | - Jang-Ho Bae
- Heart Center, Konyang University Hospital, Daejeon, South Korea
- Department of Cardiology, Konyang University College of Medicine, Daejeon, South Korea
| | - Enrique Bernal
- Infectious Diseases Unit, Reina Sofia Hospital, Murcia, Spain
| | | | | | - Michael H. Olsen
- Department of Internal Medicine, Holbaek Hospital, University of Southern Denmark, Odense, Denmark
| | - David Preiss
- MRC Population Health Research Unit, Clinical Trial Service Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Naveed Sattar
- BHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, UK
| | - Edith Beishuizen
- Department of Internal Medicine, HMC+ (Bronovo), the Hague, the Netherlands
| | - Menno V. Huisman
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - Mark A. Espeland
- Department of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Caroline Schmidt
- Wallenberg Laboratory for Cardiovascular Research, University of Gothenburg, Gothenburg, Sweden
| | - Stefan Agewall
- Oslo University Hospital Ullevål and Institute of Clinical Sciences, University of Oslo, Oslo, Norway
| | - Ercan Ok
- Nephrology Department, Ege University School of Medicine, Bornova-Izmir, Turkey
| | - Gülay Aşçi
- Nephrology Department, Ege University School of Medicine, Bornova-Izmir, Turkey
| | - Eric de Groot
- Imagelabonline & Cardiovascular, Eindhoven and Lunteren, the Netherlands
| | | | - Peter J. Blankestijn
- Department of Nephrology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Michiel L. Bots
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Michael J. Sweeting
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Simon G. Thompson
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | | |
Collapse
|
28
|
Rosas G, Gaffo A, Rahn EJ, Saag KG. Cardiovascular safety risks associated with gout treatments. Expert Opin Drug Saf 2020; 19:1143-1154. [PMID: 32731769 DOI: 10.1080/14740338.2020.1804551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
INTRODUCTION Uric acid is the final byproduct of purine metabolism. The loss of the enzyme that hydrolyzes uric acid to allantoin was lost, leading to a decrease in uric acid excretion and its further accumulation. The buildup of uric acid leads to damage in different organ systems, including the cardiovascular system. With the increasing burden of cardiovascular disease worldwide, a growing body of evidence has addressed the relationship between urate, cardiovascular outcomes, and gout medication cardiovascular safety. Areas covered: We discuss the most common gout therapies used for the reduction of serum urate and management of gout flares in different observational and clinical trials and their effects on different aspects of cardiovascular disease. We selected the most representative clinical studies that evaluated cardiovascular outcomes with each gout therapy as well as recommendation given by the most representative guidelines from Rheumatology societies for the management of gout. EXPERT OPINION The treatment of gout reduces joint damage and it can also lessen CV morbidity. Allopurinol shows CV safety profile when compared to other ULTs. Evidence supporting CV safety with the use of colchicine and IL-1 agents is promising and research needs to be conducted to further assess this outcome.
Collapse
Affiliation(s)
- Giovanna Rosas
- Department of Medicine, University of Alabama at Birmingham , Birmingham, AL, USA
| | - Angelo Gaffo
- Department of Medicine, University of Alabama at Birmingham , Birmingham, AL, USA
| | - Elizabeth J Rahn
- Department of Medicine, University of Alabama at Birmingham , Birmingham, AL, USA
| | - Kenneth G Saag
- Department of Medicine, University of Alabama at Birmingham , Birmingham, AL, USA
| |
Collapse
|
29
|
Sanchez-Lozada LG, Rodriguez-Iturbe B, Kelley EE, Nakagawa T, Madero M, Feig DI, Borghi C, Piani F, Cara-Fuentes G, Bjornstad P, Lanaspa MA, Johnson RJ. Uric Acid and Hypertension: An Update With Recommendations. Am J Hypertens 2020; 33:583-594. [PMID: 32179896 PMCID: PMC7368167 DOI: 10.1093/ajh/hpaa044] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 03/11/2020] [Indexed: 12/24/2022] Open
Abstract
The association between increased serum urate and hypertension has been a subject of intense controversy. Extracellular uric acid drives uric acid deposition in gout, kidney stones, and possibly vascular calcification. Mendelian randomization studies, however, indicate that serum urate is likely not the causal factor in hypertension although it does increase the risk for sudden cardiac death and diabetic vascular disease. Nevertheless, experimental evidence strongly suggests that an increase in intracellular urate is a key factor in the pathogenesis of primary hypertension. Pilot clinical trials show beneficial effect of lowering serum urate in hyperuricemic individuals who are young, hypertensive, and have preserved kidney function. Some evidence suggest that activation of the renin-angiotensin system (RAS) occurs in hyperuricemia and blocking the RAS may mimic the effects of xanthine oxidase inhibitors. A reduction in intracellular urate may be achieved by lowering serum urate concentration or by suppressing intracellular urate production with dietary measures that include reducing sugar, fructose, and salt intake. We suggest that these elements in the western diet may play a major role in the pathogenesis of primary hypertension. Studies are necessary to better define the interrelation between uric acid concentrations inside and outside the cell. In addition, large-scale clinical trials are needed to determine if extracellular and intracellular urate reduction can provide benefit hypertension and cardiometabolic disease.
Collapse
Affiliation(s)
- Laura G Sanchez-Lozada
- Department of Cardio-Renal Physiopathology, Instituto Nacional de Cardiología “Ignacio Chávez”, Mexico City, Mexico
| | - Bernardo Rodriguez-Iturbe
- Department of Cardio-Renal Physiopathology, Instituto Nacional de Cardiología “Ignacio Chávez”, Mexico City, Mexico
- Department of Nephrology, Instituto Nacional de Ciencias Médicas Y Nutrición “Salvador Zubirán”, Mexico City, Mexico
| | - Eric E Kelley
- Department of Physiology and Pharmacology, West Virginia University, Morgantown, WV, USA
| | | | - Magdalena Madero
- Department of Cardio-Renal Physiopathology, Instituto Nacional de Cardiología “Ignacio Chávez”, Mexico City, Mexico
| | - Dan I Feig
- Division of Pediatric Nephrology, University of Alabama, Birmingham, Alabama, USA
| | - Claudio Borghi
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Federica Piani
- Department of Cardio-Renal Physiopathology, Instituto Nacional de Cardiología “Ignacio Chávez”, Mexico City, Mexico
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Gabriel Cara-Fuentes
- Department of Pediatrics, Division of Pediatric Nephrology, University of Colorado, Aurora, Colorado, USA
| | - Petter Bjornstad
- Division of Pediatric Endocrinology, University of Colorado, Aurora, Colorado, USA
| | - Miguel A Lanaspa
- Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Richard J Johnson
- Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| |
Collapse
|
30
|
Tanaka A, Taguchi I, Teragawa H, Ishizaka N, Kanzaki Y, Tomiyama H, Sata M, Sezai A, Eguchi K, Kato T, Toyoda S, Ishibashi R, Kario K, Ishizu T, Ueda S, Maemura K, Higashi Y, Yamada H, Ohishi M, Yokote K, Murohara T, Oyama JI, Node K. Febuxostat does not delay progression of carotid atherosclerosis in patients with asymptomatic hyperuricemia: A randomized, controlled trial. PLoS Med 2020; 17:e1003095. [PMID: 32320401 PMCID: PMC7176100 DOI: 10.1371/journal.pmed.1003095] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 03/30/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND An elevated level of serum uric acid (SUA) is associated with an increased risk of cardiovascular disease. Pharmacological intervention with urate-lowering agents, such as the conventional purine analogue xanthine oxidase (XO) inhibitor, allopurinol, has been used widely for a long period of time in clinical practice to reduce SUA levels. Febuxostat, a novel non-purine selective inhibitor of XO, has higher potency for inhibition of XO activity and greater urate-lowering efficacy than conventional allopurinol. However, clinical evidence regarding the effects of febuxostat on atherosclerosis is lacking. The purpose of the study was to test whether treatment with febuxostat delays carotid intima-media thickness (IMT) progression in patients with asymptomatic hyperuricemia. METHODS AND FINDINGS The study was a multicenter, prospective, randomized, open-label, blinded-endpoint clinical trial undertaken at 48 sites throughout Japan between May 2014 and August 2018. Adults with both asymptomatic hyperuricemia (SUA >7.0 mg/dL) and maximum IMT of the common carotid artery (CCA) ≥1.1 mm at screening were allocated equally using a central web system to receive either dose-titrated febuxostat (10-60 mg daily) or as a control-arm, non-pharmacological lifestyle modification for hyperuricemia, such as a healthy diet and exercise therapy. Of the 514 enrolled participants, 31 were excluded from the analysis, with the remaining 483 people (mean age 69.1 years [standard deviation 10.4 years], female 19.7%) included in the primary analysis (febuxostat group, 239; control group, 244), based on a modified intention-to-treat principal. The carotid IMT images were recorded by a single sonographer at each site and read in a treatment-blinded manner by a single analyzer at a central core laboratory. The primary endpoint was the percentage change from baseline to 24 months in mean IMT of the CCA, determined by analysis of covariance using the allocation adjustment factors (age, gender, history of type 2 diabetes, baseline SUA, and baseline maximum IMT of the CCA) as the covariates. Key secondary endpoints included changes in other carotid ultrasonographic parameters and SUA and the incidence of clinical events. The mean values (± standard deviation) of CCA-IMT were 0.825 mm ± 0.173 mm in the febuxostat group and 0.832 mm ± 0.175 mm in the control group (mean between-group difference [febuxostat - control], -0.007 mm [95% confidence interval (CI) -0.039 mm to 0.024 mm; P = 0.65]) at baseline; 0.832 mm ± 0.182 mm in the febuxostat group and 0.848 mm ± 0.176 mm in the control group (mean between-group difference, -0.016 mm [95% CI -0.051 mm to 0.019 mm; P = 0.37]) at 24 months. Compared with the control group, febuxostat had no significant effect on the primary endpoint (mean percentage change 1.2% [95% CI -0.6% to 3.0%] in the febuxostat group (n = 207) versus 1.4% [95% CI -0.5% to 3.3%] in the control group (n = 193); mean between-group difference, -0.2% [95% CI -2.3% to 1.9%; P = 0.83]). Febuxostat also had no effect on the other carotid ultrasonographic parameters. The mean baseline values of SUA were comparable between the two groups (febuxostat, 7.76 mg/dL ± 0.98 mg/dL versus control, 7.73 mg/dL ± 1.04 mg/dL; mean between-group difference, 0.03 mg/dL [95% CI -0.15 mg/dL to 0.21 mg/dL; P = 0.75]). The mean value of SUA at 24 months was significantly lower in the febuxostat group than in the control group (febuxostat, 4.66 mg/dL ± 1.27 mg/dL versus control, 7.28 mg/dL ± 1.27 mg/dL; mean between-group difference, -2.62 mg/dL [95% CI -2.86 mg/dL to -2.38 mg/dL; P < 0.001]). Episodes of gout arthritis occurred only in the control group (4 patients [1.6%]). There were three deaths in the febuxostat group and seven in the control group during follow-up. A limitation of the study was the study design, as it was not a placebo-controlled trial, had a relatively small sample size and a short intervention period, and only enrolled Japanese patients with asymptomatic hyperuricemia. CONCLUSIONS In Japanese patients with asymptomatic hyperuricemia, 24 months of febuxostat treatment did not delay carotid atherosclerosis progression, compared with non-pharmacological care. These findings do not support the use of febuxostat for delaying carotid atherosclerosis in this population. TRIAL REGISTRATION University Hospital Medical Information Network Clinical Trial Registry UMIN000012911.
Collapse
Affiliation(s)
- Atsushi Tanaka
- Department of Cardiovascular Medicine, Saga University, Saga, Japan
- * E-mail: (AT); (KN)
| | - Isao Taguchi
- Department of Cardiology, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Hiroki Teragawa
- Department of Cardiovascular Medicine, JR Hiroshima Hospital, Hiroshima, Japan
| | | | - Yumiko Kanzaki
- Department of Cardiology, Osaka Medical College, Takatsuki, Japan
| | | | - Masataka Sata
- Department of Cardiovascular Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Akira Sezai
- The Department of Cardiovascular Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Kazuo Eguchi
- Department of Internal Medicine, Hanyu General Hospital, Hanyu, Japan
| | - Toru Kato
- Department of Clinical Research, National Hospital Organization, Tochigi Medical Center, Utsunomiya, Japan
| | - Shigeru Toyoda
- Department of Cardiovascular Medicine, Dokkyo Medical University, Mibu, Japan
| | - Ryoichi Ishibashi
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Kimitsu Chuo Hospital, Kisarazu, Japan
| | - Kazuomi Kario
- Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University School of Medicine, Shimotsuke, Japan
| | - Tomoko Ishizu
- Department of Clinical Laboratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Shinichiro Ueda
- Department of Clinical Pharmacology and Therapeutics, University of the Ryukyus, Nishihara, Japan
| | - Koji Maemura
- Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yukihito Higashi
- Department of Cardiovascular Regeneration and Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Hirotsugu Yamada
- Department of Cardiovascular Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Mitsuru Ohishi
- Department of Cardiovascular Medical and Hypertension, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Kotaro Yokote
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Toyoaki Murohara
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Jun-ichi Oyama
- Department of Cardiovascular Medicine, Saga University, Saga, Japan
| | - Koichi Node
- Department of Cardiovascular Medicine, Saga University, Saga, Japan
- * E-mail: (AT); (KN)
| | | |
Collapse
|
31
|
Mori N, Saito Y, Saito K, Matsuoka T, Tateishi K, Kadohira T, Kitahara H, Fujimoto Y, Kobayashi Y. Relation of Plasma Xanthine Oxidoreductase Activity to Coronary Lipid Core Plaques Assessed by Near-Infrared Spectroscopy Intravascular Ultrasound in Patients With Stable Coronary Artery Disease. Am J Cardiol 2020; 125:1006-1012. [PMID: 31955828 DOI: 10.1016/j.amjcard.2019.12.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/19/2019] [Accepted: 12/23/2019] [Indexed: 01/06/2023]
Abstract
Previous studies reported that elevated serum uric acid level was associated with greater coronary lipid plaque. Xanthine oxidoreductase (XOR) is a rate-limiting enzyme in purine metabolism and is believed to play important roles in coronary atherosclerosis. However, the relation between XOR and coronary lipid plaque is unclear. Patients with stable coronary artery disease who underwent elective percutaneous coronary intervention under near-infrared spectroscopy intravascular ultrasound (NIRS-IVUS) guidance were prospectively included. They were divided into 3 groups according to plasma XOR activities based on a previous report: low, normal, and high. Quantitative coronary angiography and gray-scale IVUS were analyzed. The primary end point was coronary lipid plaques in a nontarget vessel assessed by NIRS-IVUS with lipid core burden index (LCBI) and maximum LCBI in 4 mm (maxLCBI4mm). Out of 68 patients, 26, 31, and 11 patients were classified as low, normal, and high XOR activity groups. Quantitative coronary angiography demonstrated that the high XOR activity group had longer lesion length, smaller minimum lumen diameter, and higher percentage of diameter stenosis in a nontarget vessel among the 3 groups. Gray-scale IVUS analysis also showed smaller lumen area in the high XOR activity group than the others. LCBI (102.1 ± 56.5 vs 65.6 ± 48.5 vs 55.6 ± 37.8, p = 0.04) and maxLCBI4mm (474.4 ± 171.6 vs 347.4 ± 181.6, 294.0 ± 155.9, p = 0.04) in a nontarget vessel were significantly higher in the high XOR group than in the normal and low groups. In conclusion, elevated XOR activity was associated with coronary lipid-rich plaque in a nontarget vessel in patients with stable coronary artery disease.
Collapse
|
32
|
Maloberti A, Giannattasio C, Bombelli M, Desideri G, Cicero AFG, Muiesan ML, Rosei EA, Salvetti M, Ungar A, Rivasi G, Pontremoli R, Viazzi F, Facchetti R, Ferri C, Bernardino B, Galletti F, D'Elia L, Palatini P, Casiglia E, Tikhonoff V, Barbagallo CM, Verdecchia P, Masi S, Mallamaci F, Cirillo M, Rattazzi M, Pauletto P, Cirillo P, Gesualdo L, Mazza A, Volpe M, Tocci G, Iaccarino G, Nazzaro P, Lippa L, Parati G, Dell'Oro R, Quarti-Trevano F, Grassi G, Virdis A, Borghi C. Hyperuricemia and Risk of Cardiovascular Outcomes: The Experience of the URRAH (Uric Acid Right for Heart Health) Project. High Blood Press Cardiovasc Prev 2020; 27:121-128. [PMID: 32157643 DOI: 10.1007/s40292-020-00368-z] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 03/04/2020] [Indexed: 12/17/2022] Open
Abstract
The latest European Guidelines of Arterial Hypertension have officially introduced uric acid evaluation among the cardiovascular risk factors that should be evaluated in order to stratify patient's risk. In fact, it has been extensively evaluated and demonstrated to be an independent predictor not only of all-cause and cardiovascular mortality, but also of myocardial infraction, stroke and heart failure. Despite the large number of studies on this topic, an important open question that still need to be answered is the identification of a cardiovascular uric acid cut-off value. The actual hyperuricemia cut-off (> 6 mg/dL in women and 7 mg/dL in men) is principally based on the saturation point of uric acid but previous evidence suggests that the negative impact of cardiovascular system could occur also at lower levels. In this context, the Working Group on uric acid and CV risk of the Italian Society of Hypertension has designed the Uric acid Right for heArt Health project. The primary objective of this project is to define the level of uricemia above which the independent risk of CV disease may increase in a significantly manner. In this review we will summarize the first results obtained and describe the further planned analysis.
Collapse
Affiliation(s)
- Alessandro Maloberti
- Cardiology IV, "A.De Gasperis" Department, Ospedale Niguarda Ca' Granda, Piazza Ospedale Maggiore 3, 20159, Milan, Italy. .,Health Science Department, Milano-Bicocca University, Milan, Italy.
| | - C Giannattasio
- Cardiology IV, "A.De Gasperis" Department, Ospedale Niguarda Ca' Granda, Piazza Ospedale Maggiore 3, 20159, Milan, Italy.,Health Science Department, Milano-Bicocca University, Milan, Italy
| | - M Bombelli
- Health Science Department, Milano-Bicocca University, Milan, Italy.,Clinica Medica, San Gerardo Hospital, Monza, Italy
| | - G Desideri
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - A F G Cicero
- Department of Medical and Surgical Science, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - M L Muiesan
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - E A Rosei
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - M Salvetti
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - A Ungar
- Department of Geriatric and Intensive Care Medicine, Careggi Hospital and University of Florence, Florence, Italy
| | - G Rivasi
- Department of Geriatric and Intensive Care Medicine, Careggi Hospital and University of Florence, Florence, Italy
| | - R Pontremoli
- Department of Internal Medicine, University of Genoa and Policlinico SanMartino, Genoa, Italy
| | - F Viazzi
- Department of Internal Medicine, University of Genoa and Policlinico SanMartino, Genoa, Italy
| | - R Facchetti
- Health Science Department, Milano-Bicocca University, Milan, Italy
| | - C Ferri
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - B Bernardino
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - F Galletti
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples Medical School, Naples, Italy
| | - L D'Elia
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples Medical School, Naples, Italy
| | - P Palatini
- Studium Patavinum, Department of Medicine, University of Padua, Padua, Italy
| | - E Casiglia
- Studium Patavinum, Department of Medicine, University of Padua, Padua, Italy
| | - V Tikhonoff
- Department of Medicine, University of Padua, Padua, Italy
| | - C M Barbagallo
- Biomedical Department of Internal Medicine and Specialistics, University of Palermo, Palermo, Italy
| | - P Verdecchia
- Hospital S. Maria della Misericordia, Perugia, Italy
| | - S Masi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - F Mallamaci
- Reggio Cal Unit, CNR-IFC, Clinical Epidemiology of Renal Diseases and Hypertension, Reggio Calabria, Italy
| | - M Cirillo
- Department of Public Health, "Federico II" University of Naples, Naples, Italy
| | - M Rattazzi
- Department of Medicine, University of Padua, Padua, Italy.,Medicina Interna I, Ca' Foncello University Hospital, Treviso, Italy
| | - P Pauletto
- Medicina Interna I, Ca' Foncello University Hospital, Treviso, Italy
| | - P Cirillo
- Nephrology, Dialysis and Transplantation Unit, Department of Emergency and Organ Transplantation, "Aldo Moro" University of Bari, Bari, Italy
| | - L Gesualdo
- Nephrology, Dialysis and Transplantation Unit, Department of Emergency and Organ Transplantation, "Aldo Moro" University of Bari, Bari, Italy
| | - A Mazza
- Department of Internal Medicine, Santa Maria della Misericordia General Hospital, AULSS 5 Polesana, Rovigo, Italy
| | - M Volpe
- Division of Cardiology, Department of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, University of Rome Sapienza, Sant'Andrea Hospital, Rome, Italy.,IRCCS Neuromed, Pozzilli, Italy
| | - G Tocci
- Division of Cardiology, Department of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, University of Rome Sapienza, Sant'Andrea Hospital, Rome, Italy.,IRCCS Neuromed, Pozzilli, Italy
| | - G Iaccarino
- Department of Advanced Biomedical Sciences, "Federico II" University of Naples, Naples, Italy
| | - P Nazzaro
- Department of Medical Basic Sciences, Neurosciences and Sense Organs, University of Bari Medical School, Bari, Italy
| | - L Lippa
- Italian Society of General Medicine (SIMG), Avezzano, L'Aquila, Italy
| | - G Parati
- Health Science Department, Milano-Bicocca University, Milan, Italy.,Department of Cardiovascular, Neural and Metabolic Sciences, San Luca Hospital, Istituto Auxologico Italiano, IRCCS, Milan, Italy
| | - R Dell'Oro
- Health Science Department, Milano-Bicocca University, Milan, Italy.,Clinica Medica, San Gerardo Hospital, Monza, Italy
| | - F Quarti-Trevano
- Health Science Department, Milano-Bicocca University, Milan, Italy.,Clinica Medica, San Gerardo Hospital, Monza, Italy
| | - G Grassi
- Health Science Department, Milano-Bicocca University, Milan, Italy.,Clinica Medica, San Gerardo Hospital, Monza, Italy
| | - A Virdis
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - C Borghi
- Department of Medical and Surgical Science, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | | |
Collapse
|
33
|
Chen S, Yang H, Chen Y, Wang J, Xu L, Miao M, Xu C. Association between serum uric acid levels and dyslipidemia in Chinese adults: A cross-sectional study and further meta-analysis. Medicine (Baltimore) 2020; 99:e19088. [PMID: 32176036 PMCID: PMC7440131 DOI: 10.1097/md.0000000000019088] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
This study aimed to investigate the association of serum uric acid (SUA) levels with dyslipidemia and its components and to further explore the age- and gender-specific association of SUA levels with dyslipidemia in Chinese adults.A cross-sectional study was performed among 8642 adults who underwent health examinations. A meta-analysis covering 17 studies was conducted to confirm the results.The prevalence of hyperuricemia and dyslipidemia was 9.25% and 20.44%, respectively. Participants with hyperuricemia had higher prevalence of dyslipidemia than those without hyperuricemia (34.42% vs 19.01%, P < .005). Compared with participants with SUA in the first quintile, the odds ratio (OR) (95% confidence interval) of dyslipidemia in the second, third, fourth, and fifth quintiles of SUA were 1.095 (0.901-1.332), 1.582 (1.315-1.904), 2.095 (1.752-2.505), and 3.212 (2.702-3.818), respectively. Subgroup analysis showed that SUA quintiles were significantly correlated with the likelihood of dyslipidemia in females aged > 50 years and in males, but not in females aged ≤50 years. The meta-analysis also showed that hyperuricemia increased the likelihood of dyslipidemia and the pooled OR for the highest uric acid level vs the lowest uric acid level was 1.84 (1.49-2.28).SUA levels are significantly associated with dyslipidemia, and this association is impacted by age and gender.
Collapse
Affiliation(s)
- Shenghui Chen
- Department of Gastroenterology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou
| | - Hua Yang
- Department of Gastroenterology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou
| | - Yishu Chen
- Department of Gastroenterology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou
| | - Jinghua Wang
- Department of Gastroenterology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou
| | - Lei Xu
- Department of Gastroenterology, Zhejiang University Ningbo Hospital
| | - Min Miao
- Department of Internal Medicine, Zhenhai Lianhua Hospital, Ningbo, China
| | - Chengfu Xu
- Department of Gastroenterology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou
| |
Collapse
|
34
|
Nakagawa T, Lanaspa MA, Johnson RJ. The effects of fruit consumption in patients with hyperuricaemia or gout. Rheumatology (Oxford) 2020; 58:1133-1141. [PMID: 31004140 DOI: 10.1093/rheumatology/kez128] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 03/06/2019] [Indexed: 01/05/2023] Open
Abstract
The consumption of fructose has gained increased attention as a potential cause of hyperuricaemia since fructose metabolism produces urate as a byproduct. In addition to sucrose and high fructose corn syrup, fresh fruits also contain fructose, suggesting that patients with hyperuricaemia or gout might also avoid fresh fruit. However, the effect of fruits is complex. Some studies reported that fruit intake was associated with gout flares while other studies showed that fruits rather lowered the risk for gout. Thus, fruits should not be simply viewed as a source of fructose. The complexity of fruits is accounted for by several nutrients existing in fruits. Vitamin C, epicatechin, flavonols, potassium and fibre are all nutrients in fruits, and these factors could modify fructose and urate effects. In this review, we discuss clinical studies evaluating the effect of fruit and fruit juice intake on hyperuricaemia and gout, and propose potential mechanisms for how fruit may influence urate levels.
Collapse
Affiliation(s)
- Takahiko Nakagawa
- Department of Nephrology, Rakuwakai Otowa Hospital, Kyoto, Japan.,Department of Stem Cell Biology and Regenerative Medicine, Shiga University of Medical Science, Shiga, Japan
| | - Miguel A Lanaspa
- Division of Renal Diseases and Hypertension, University of Colorado Denver, Aurora, CO, USA
| | - Richard J Johnson
- Division of Renal Diseases and Hypertension, University of Colorado Denver, Aurora, CO, USA
| |
Collapse
|
35
|
Stewart DJ, Langlois V, Noone D. Hyperuricemia and Hypertension: Links and Risks. Integr Blood Press Control 2019; 12:43-62. [PMID: 31920373 PMCID: PMC6935283 DOI: 10.2147/ibpc.s184685] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 11/27/2019] [Indexed: 12/19/2022] Open
Abstract
Hyperuricemia has long been recognized to be associated with increased cardiovascular risk, including risk of developing hypertension. Epidemiological findings suggest that the link with hypertension is stronger in children and adolescents. Uric acid acts as a strong antioxidant compound in the extracellular environment but has pro-inflammatory effects within the intracellular setting. A chronic phase of microvascular injury is known to occur after prolonged periods of hyperuricemia. This is proposed to contribute to afferent arteriolopathy and elevation of blood pressure that may become unresponsive to uric acid-lowering therapies over time. Studies have struggled to infer direct causality of hyperuricemia due to a vast number of confounders including body mass index. The aim of this review is to present the available data and highlight the need for large scale prospective randomized controlled trials in this area. At present, there is limited evidence to support a role for uric acid-lowering therapies in helping mitigate the risk of hypertension.
Collapse
Affiliation(s)
- Douglas J Stewart
- Division of Nephrology, The Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - Valerie Langlois
- Division of Nephrology, The Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada.,Department of Paediatrics, University of Toronto, Toronto, Ontario M5G 1X8, Canada
| | - Damien Noone
- Division of Nephrology, The Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada.,Department of Paediatrics, University of Toronto, Toronto, Ontario M5G 1X8, Canada
| |
Collapse
|
36
|
Okuya Y, Saito Y, Takahashi T, Kishi K. Impact of Elevated Serum Uric Acid Level on Target Lesion Revascularization After Percutaneous Coronary Intervention for Chronic Total Occlusion. Am J Cardiol 2019; 124:1827-1832. [PMID: 31653354 DOI: 10.1016/j.amjcard.2019.09.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/05/2019] [Accepted: 09/05/2019] [Indexed: 10/25/2022]
Abstract
Elevated serum uric acid (SUA) level is reportedly associated with subsequent cardiovascular events including revascularization in patients with coronary artery disease. However, the impact of SUA level on revascularization in patients with chronic total occlusion (CTO), one of the highest risk subsets in coronary artery disease, is unclear. The aim of this study was to evaluate the impact of SUA level on target lesion revascularization (TLR) in contemporary percutaneous coronary intervention (PCI) for CTO. A total of 165 patients who underwent successful PCI with new-generation drug-eluting stent for CTO under intravascular ultrasound guidance were included. Patients were classified into 3 groups according to the tertiles of SUA level at baseline. Coronary angiography was qualitatively and quantitatively assessed, and gray-scale intravascular ultrasound was also analyzed. The primary end point was TLR. The tertiles of SUA level were as follows: low tertile, ≤5.2 mg/dl; intermediate tertile, 5.3 to 6.4 mg/dl; and high tertile, ≥6.5 mg/dl. During a median follow-up of 34 months, TLR was observed in 5 patients (8.8%) in the low tertile, in 5 (9.4%) in the intermediate tertile, and in 14 (25.5%) in the high tertile (p = 0.02). Kaplan-Meier analysis demonstrated a significantly higher incidence of TLR in patients with high tertile than the low and intermediate groups. Multivariable analysis showed SUA ≥6.5 mg/dl, diabetes mellitus, and longer CTO length as independent predictors of TLR. In conclusion, in patients who underwent PCI with drug-eluting stent, elevated SUA level was associated with TLR after successful recanalization of CTO.
Collapse
|
37
|
Bjelakovic B, Stefanutti C, Bonic D, Vukovic V, Kavaric N, Saranac L, Kocic G, Klisic A, Jevtović Stojmenov T, Lukic S, Jovic M, Bjelakovic M. Serum uric acid and left ventricular geometry pattern in obese children. ATHEROSCLEROSIS SUPP 2019; 40:88-93. [DOI: 10.1016/j.atherosclerosissup.2019.08.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
38
|
Johnson RJ, Choi HK, Yeo AE, Lipsky PE. Pegloticase Treatment Significantly Decreases Blood Pressure in Patients With Chronic Gout. Hypertension 2019; 74:95-101. [PMID: 31079535 DOI: 10.1161/hypertensionaha.119.12727] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Serum urate is correlated with blood pressure (BP), and lowering urate may decrease BP, but a consistent effect has not been observed. Here, we evaluated whether pegloticase, a recombinant uricase conjugated to polyethylene glycol, which can lead to persistently low serum urate levels (<1 mg/dL), can modulate BP in subjects with chronic refractory gout. This post hoc analysis used results from two 6-month randomized clinical trials in which subjects were treated with 8 mg pegloticase every 2 or 4 weeks (q2w or q4w) or placebo. Responders in this study were defined as those individuals in whom a persistently low urate level (<6 mg/dL and usually <1 mg/dL) was maintained. Serial sitting BP was measured in 173 subjects, and estimated glomerular filtration rate was determined at baseline and after 3 and 6 months. Significant reductions in mean arterial pressure (MAP) from baseline to 6 months were noted in q2w responders ( P=0.0028), whereas reductions in MAP in other groups were not significant. Significant decreases in both systolic and diastolic BP paralleled the change in MAP. Of the 62% of q2w responders exhibiting persistent decreases in MAP, there were no significant differences in baseline age, sex, race, weight, body mass index, history of hypertension, hyperlipidemia, history of coronary artery disease, gout duration, MAP, serum urate, estimated glomerular filtration rate or urinary uric acid/creatinine ratio compared with those who did not lower MAP. No significant changes in estimated glomerular filtration rate occurred in any of the groups during the study. Responders to biweekly pegloticase who maintained a persistently lower serum urate level throughout the trial experienced significant reductions in both systolic and diastolic BP that were independent of changes in renal function. Clinical Trial Registration- URL: http://www.clinicaltrials.gov . Unique identifier: NCT00325195.
Collapse
Affiliation(s)
- Richard J Johnson
- From the Division of Renal Diseases and Hypertension University of Colorado, Aurora (R.J.J.)
| | - Hyon K Choi
- Department of Medicine, Massachusetts General Hospital, Boston (H.K.C.)
| | | | | |
Collapse
|
39
|
Lu J, Sun M, Wu X, Yuan X, Liu Z, Qu X, Ji X, Merriman TR, Li C. Urate-lowering therapy alleviates atherosclerosis inflammatory response factors and neointimal lesions in a mouse model of induced carotid atherosclerosis. FEBS J 2019; 286:1346-1359. [PMID: 30690853 PMCID: PMC6849826 DOI: 10.1111/febs.14768] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 11/10/2018] [Accepted: 01/23/2019] [Indexed: 12/18/2022]
Abstract
Hyperuricemia (HU) is a cause of gout. Clinical studies show a link between HU and cardiovascular disease. However, the role of soluble serum urate (SU) on atherosclerosis development remains elusive. We aimed to use a new HU mouse model [Uricase/Uox knockout (KO)] to further investigate the relationship between HU and atherosclerosis. A mouse model by perivascular collar placement of induced carotid atherosclerosis was established in male Uox-KO mice. The Uox-KO mice had elevated SU levels and enhanced levels of atherosclerosis inflammatory response proteins. In contrast, Uox-KO mice with carotid atherosclerosis showed severe neointimal changes in histology staining consistent with increases in intimal area and increases in proliferating cell nuclear antigen (PCNA)- and F4/80-positive cells. Allopurinol reduced neointimal areas induced by the perivascular collar in hyperuricemic mice, accompanied by decreased expression of PCNA- and F4/80-positive cells. Urate-lowering treatment alleviated atherosclerosis inflammatory response factors and reactive oxygen species (ROS) intensities in both collar placement Uox-KO mice and urate-stimulated human umbilical vein endothelial cells (HUVECs). In vitro results using HUVECs showed ROS was induced by urate and ROS induction was abrogated using antioxidants. These data demonstrate that urate per se does not trigger atherosclerosis intima lesions in male mice. Urate worsens carotid neointimal lesions induced by the perivascular collar and urate-lowering therapy partially abrogates the effects. The current study warrants clinical studies on the possible benefits of urate-lowering therapy in atherosclerosis patients with HU.
Collapse
Affiliation(s)
- Jie Lu
- Institute of Metabolic Diseases, Qingdao University, China.,Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, The Affiliated Hospital of Qingdao University, China.,Department of Endocrinology and Metabolic Diseases, The Affiliated Hospital of Qingdao University, China
| | - Mingshu Sun
- Institute of Metabolic Diseases, Qingdao University, China.,Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, The Affiliated Hospital of Qingdao University, China.,Department of Rheumatology and Clinical Immunology, The Affiliated Hospital of Qingdao University, China
| | - Xinjiang Wu
- Institute of Metabolic Diseases, Qingdao University, China
| | - Xuan Yuan
- Institute of Metabolic Diseases, Qingdao University, China
| | - Zhen Liu
- Institute of Metabolic Diseases, Qingdao University, China.,Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, The Affiliated Hospital of Qingdao University, China
| | - Xiaojie Qu
- Institute of Metabolic Diseases, Qingdao University, China.,Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, The Affiliated Hospital of Qingdao University, China.,Department of Endocrinology and Metabolic Diseases, The Affiliated Hospital of Qingdao University, China
| | - Xiaopeng Ji
- Institute of Metabolic Diseases, Qingdao University, China.,Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, The Affiliated Hospital of Qingdao University, China
| | - Tony R Merriman
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
| | - Changgui Li
- Institute of Metabolic Diseases, Qingdao University, China.,Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, The Affiliated Hospital of Qingdao University, China.,Department of Endocrinology and Metabolic Diseases, The Affiliated Hospital of Qingdao University, China
| |
Collapse
|
40
|
Arbel Y, Abuzeid W, Rosenson RS, Weisman A, Farkouh ME. Old Drugs for New Indications in Cardiovascular Medicine. Cardiovasc Drugs Ther 2019; 32:223-232. [PMID: 29633048 DOI: 10.1007/s10557-018-6785-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Inflammation participates in the initiation and progression of atherosclerotic cardiovascular disease, and it is a critical inciting factor leading to acute ischemic events. Evidence has shown that certain anti-inflammatory medications used to treat non-atherosclerotic inflammatory diseases reduce cardiovascular events. This article reviews evidence that commonly used anti-inflammatory therapies (colchicine, allopurinol, methotrexate), reduce cardiovascular events. We discuss potential mechanisms of action, efficacy, and safety of these therapies and propose a clinical trials design to investigate their efficacy.
Collapse
Affiliation(s)
- Yaron Arbel
- Department of Cardiology, Tel Aviv Medical Center, Tel Aviv, affiliated to the Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Wael Abuzeid
- Schulich Heart Centre, Division of Cardiology, Sunnybrook Health Sciences Centre, Ontario, Canada, affiliated with the University of Toronto, Toronto, Ontario, Canada
| | - Robert S Rosenson
- Mount Sinai Icahn School of Medicine, Mount Sinai Hospital, New York, USA
| | - Alanna Weisman
- Division of Endocrinology & Metabolism, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Michael E Farkouh
- Peter Munk Centre, Heart & Stroke Richard Lewar Centre of Excellence, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
41
|
Lai SW, Lin CL, Liao KF. Case-control study examining the association between allopurinol use and ischemic cerebrovascular disease. J Investig Med 2018; 67:48-51. [PMID: 30042112 DOI: 10.1136/jim-2018-000774] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2019] [Indexed: 12/25/2022]
Abstract
Few studies focus on the relationship between allopurinol and ischemic cerebrovascular disease. The goal of the study was to investigate the association of long-term therapy of allopurinol with the first-time attack of ischemic cerebrovascular disease in Taiwan. We performed a case-control study using the database of the Taiwan National Health Insurance Program. The case group included 14,937 subjects aged 20-84 years with the first-time attack of ischemic cerebrovascular disease from 2000 to 2013. The control group included 14,937 sex-matched and age-matched subjects aged 20-84 years without any type of cerebrovascular disease. Ever use of allopurinol was defined as subjects who had at least a prescription for allopurinol before the index date. The OR and the 95% CI for ischemic cerebrovascular disease associated with allopurinol use were measured by the multivariable logistic regression model. The adjusted OR of ischemic cerebrovascular disease was 0.992 (95% CI 0.989 to 0.996) for subjects with increasing cumulative duration of allopurinol use for every 1 month, compared with never use. In a further analysis, the adjusted OR of ischemic cerebrovascular disease was 0.74 (95% CI 0.57 to 0.96) for cumulative duration of allopurinol use >3 years, compared with never use. Our findings suggest that lone-term therapy of allopurinol >3 years is associated with decreased risk of the first-time attack of ischemic cerebrovascular disease, compared with no allopurinol therapy.
Collapse
Affiliation(s)
- Shih-Wei Lai
- College of Medicine, China Medical University, Taichung, Taiwan.,Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Cheng-Li Lin
- College of Medicine, China Medical University, Taichung, Taiwan.,Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
| | - Kuan-Fu Liao
- College of Medicine, Tzu Chi University, Hualien, Taiwan.,Division of Hepatogastroenterology, Department of Internal Medicine, Taichung Tzu Chi General Hospital, Taichung, Taiwan
| |
Collapse
|
42
|
Abstract
PURPOSE OF REVIEW Central blood pressure is a novel predictor of cardiovascular risk that can be measured in the clinical setting using currently available technology. This paper will review current available methods of central blood pressure monitoring as well as its impact in cardiac and renal disease. RECENT FINDINGS Both aortic and carotid systolic blood pressure are independently associated with cardiovascular mortality and serious cardiac events. Furthermore, studies show that systolic aortic blood pressure has been shown to be superior predictor of cardiovascular as compared to brachial blood pressure. Inhibitors of the renin angiotensin axis may have a beneficial effect on central blood pressure; however, long term studies evaluating the impact of lowering central blood pressure on clinical outcomes are lacking. Central blood pressure is a good predictor of cardiovascular risk. As more studies emerge demonstrating the value of central blood pressure as a therapeutic target, it is possible that targeting central blood pressure may become an important part of the armamentarium to lower cardiovascular risk.
Collapse
|
43
|
Dawson J, Broomfield N, Dani K, Dickie DA, Doney A, Forbes K, Houston G, Kean S, Lees K, McConnachie A, Muir KW, Quinn T, Struthers A, Walters M. Xanthine oxidase inhibition for the improvement of long-term outcomes following ischaemic stroke and transient ischaemic attack (XILO-FIST) - Protocol for a randomised double blind placebo-controlled clinical trial. Eur Stroke J 2018; 3:281-290. [PMID: 30246149 PMCID: PMC6120121 DOI: 10.1177/2396987318771426] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 03/26/2018] [Indexed: 11/16/2022] Open
Abstract
Background Allopurinol, a xanthine oxidase inhibitor, reduced progression of carotid-intima media thickness and lowered blood pressure in a small clinical trial in people with ischaemic stroke. Xanthine oxidase inhibition for improvement of long-term outcomes following ischaemic stroke and transient ischaemic attack (XILO-FIST) aims to assess the effect of allopurinol treatment on white matter hyperintensity progression and blood pressure after stroke. This paper describes the XILO-FIST protocol. Methods XILO-FIST is a multicentre randomised double-blind, placebo-controlled, parallel group clinical trial funded by the British Heart Foundation and the Stroke Association. The trial has been adopted by the Scottish Stroke Research Network and the UK Clinical Research Network. The trial is registered in clinicaltrials.gov (registration number NCT02122718). XILO-FIST will randomise 464 participants, aged greater than 50 years, with ischaemic stroke within the past month, on a 1:1 basis, to two years treatment with allopurinol 300 mg twice daily or placebo. Participants will undergo brain magnetic resonance imaging, cognitive assessment, ambulatory blood pressure monitoring and blood sampling at baseline and after two years treatment. The primary outcome will be white matter hyperintensity progression, measured using the Rotterdam progression scale. Secondary outcomes will include change in white matter hyperintensity volume, mean day-time systolic blood pressure and measures of cognitive function. Up to 100 will undergo additional cardiac magnetic resonance imaging in a sub-study of left ventricular mass. Discussion If white matter hyperintensity progression is reduced, allopurinol could be an effective preventative treatment for patients with ischaemic stroke and clinical endpoint studies would be needed. If allopurinol reduces blood pressure after stroke, then it could be used to help patients reach blood pressure targets.
Collapse
Affiliation(s)
- Jesse Dawson
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary & Life Sciences, Queen Elizabeth University Hospital, University of Glasgow, Glasgow, UK
| | - Niall Broomfield
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary & Life Sciences, Queen Elizabeth University Hospital, University of Glasgow, Glasgow, UK.,Stroke Psychology, West Glasgow Ambulatory Care Hospital, Scotland, UK
| | - Krishna Dani
- Department of Neurology, Institute of Neurological Sciences Glasgow, Queen Elizabeth University Hospital, Glasgow, UK
| | - David A Dickie
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary & Life Sciences, Queen Elizabeth University Hospital, University of Glasgow, Glasgow, UK.,DD Analytics Cubed Ltd, Bishopton, UK
| | - Alex Doney
- Medicine Monitoring Unit (MEMO), School of Medicine, University of Dundee. Ninewells Hospital, Dundee, UK
| | - Kirsten Forbes
- Department of Neuroradiology, Institute of Neurological Sciences, Queen Elizabeth University Hospital, Glasgow, UK
| | - Graeme Houston
- Division of Molecular and Clinical Medicine, School of Medicine, Ninewells Hospital, Dundee, UK
| | - Sharon Kean
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK
| | - Kennedy Lees
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary & Life Sciences, Queen Elizabeth University Hospital, University of Glasgow, Glasgow, UK
| | - Alex McConnachie
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK
| | - Keith W Muir
- Institute of Neuroscience and Psychology, College of Medical, Veterinary & Life Sciences, University of Glasgow, Queen Elizabeth University Hospital, Glasgow, UK
| | - Terry Quinn
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary & Life Sciences, Queen Elizabeth University Hospital, University of Glasgow, Glasgow, UK
| | - Allan Struthers
- Division of Molecular and Clinical Medicine, School of Medicine, Ninewells Hospital, Dundee, UK
| | - Matthew Walters
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary & Life Sciences, Queen Elizabeth University Hospital, University of Glasgow, Glasgow, UK
| |
Collapse
|
44
|
Singh JA, Cleveland J. Allopurinol and the risk of incident peripheral arterial disease in the elderly: a US Medicare claims data study. Rheumatology (Oxford) 2018; 57:451-461. [PMID: 29106674 DOI: 10.1093/rheumatology/kex232] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Indexed: 12/14/2022] Open
Abstract
Objective The aim was to examine whether allopurinol use is independently associated with a reduction in the risk of incident peripheral arterial disease (PAD) in the US elderly. Methods We used the 5% random Medicare sample from 2006 to 2012 to examine the association of allopurinol use and duration of use with the risk or hazard of incident PAD in a retrospective cohort study using a new user design. Multivariable Cox regression models adjusted for demographics, co-morbidity, cardiac medications and cardiac conditions. Hazard ratios (HRs) and 95% CIs were calculated. Results We identified 26 985 episodes of incident allopurinol use in 25 282 beneficiaries; 3167 allopurinol use episodes (12%) ended in incident PAD. In multivariable-adjusted analyses, allopurinol use was associated with an HR of 0.88 (95% CI: 0.81, 0.95) for incident PAD, as was female gender, HR 0.84 (95% CI: 0.78, 0.90). In a separate multivariable-adjusted model, compared with no allopurinol use, longer durations of allopurinol use were associated with lower HR of PAD: 181 days to 2 years, 0.88 (95% CI: 0.79, 0.97); and >2 years, 0.75 (95% CI: 0.63, 0.89). Other factors significantly associated with a higher HR of PAD were age 75 to < 85 and ⩾85 years, higher Charlson index score and black race. Sensitivity analyses that adjusted for cardiac conditions and medications confirmed these findings, with minimal to no attenuation of HRs. Conclusion New allopurinol use was independently associated with a lower risk of PAD in the elderly. Longer allopurinol use durations seemed more protective. Mechanisms of the protective effect need to be investigated in future studies.
Collapse
Affiliation(s)
- Jasvinder A Singh
- Medicine Service, VA Medical Center, University of Alabama at Birmingham, Birmingham, AL, USA.,Department of Medicine at School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.,Division of Epidemiology at School of Public Health, University of Alabama at Birmingham, Birmingham, AL, USA
| | - John Cleveland
- Department of Medicine at School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| |
Collapse
|
45
|
Johnson RJ, Bakris GL, Borghi C, Chonchol MB, Feldman D, Lanaspa MA, Merriman TR, Moe OW, Mount DB, Sanchez Lozada LG, Stahl E, Weiner DE, Chertow GM. Hyperuricemia, Acute and Chronic Kidney Disease, Hypertension, and Cardiovascular Disease: Report of a Scientific Workshop Organized by the National Kidney Foundation. Am J Kidney Dis 2018; 71:851-865. [PMID: 29496260 DOI: 10.1053/j.ajkd.2017.12.009] [Citation(s) in RCA: 328] [Impact Index Per Article: 54.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 12/03/2017] [Indexed: 12/21/2022]
Abstract
Urate is a cause of gout, kidney stones, and acute kidney injury from tumor lysis syndrome, but its relationship to kidney disease, cardiovascular disease, and diabetes remains controversial. A scientific workshop organized by the National Kidney Foundation was held in September 2016 to review current evidence. Cell culture studies and animal models suggest that elevated serum urate concentrations can contribute to kidney disease, hypertension, and metabolic syndrome. Epidemiologic evidence also supports elevated serum urate concentrations as a risk factor for the development of kidney disease, hypertension, and diabetes, but differences in methodologies and inpacts on serum urate concentrations by even subtle changes in kidney function render conclusions uncertain. Mendelian randomization studies generally do not support a causal role of serum urate in kidney disease, hypertension, or diabetes, although interpretation is complicated by nonhomogeneous populations, a failure to consider environmental interactions, and a lack of understanding of how the genetic polymorphisms affect biological mechanisms related to urate. Although several small clinical trials suggest benefits of urate-lowering therapies on kidney function, blood pressure, and insulin resistance, others have been negative, with many trials having design limitations and insufficient power. Thus, whether uric acid has a causal role in kidney and cardiovascular diseases requires further study.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Orson W Moe
- University of Texas Southwestern Medical Center, Dallas, TX
| | - David B Mount
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | | | - Eli Stahl
- Mount Sinai School of Medicine, New York City, NY
| | | | | |
Collapse
|
46
|
Tscharre M, Herman R, Rohla M, Hauser C, Farhan S, Freynhofer MK, Huber K, Weiss TW. Uric acid is associated with long-term adverse cardiovascular outcomes in patients with acute coronary syndrome undergoing percutaneous coronary intervention. Atherosclerosis 2018; 270:173-179. [PMID: 29432935 DOI: 10.1016/j.atherosclerosis.2018.02.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 12/21/2017] [Accepted: 02/02/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS Evidence links uric acid (UA) with the promotion of cardiovascular disease. We assessed the prognostic value of UA on long-term major adverse outcomes (MACE) in patients with acute coronary syndrome (ACS), undergoing percutaneous coronary intervention (PCI). METHODS As primary endpoint, we assessed the association of UA (continuous and dichotomized) with MACE, including cardiovascular death, myocardial infarction (MI) and stroke, using Cox regression and propensity matching. As secondary endpoints, the influence of hyperuricemia (defined as UA levels > 6.0 mg/dl in women, and >7.0 mg/dl in men) was analysed separately for cardiovascular death, MI, and stroke. The incremental prognostic value of UA was tested using the net reclassification improvement (NRI), and the integrated discrimination improvement (IDI). RESULTS We included 1215 patients. Hyperuricemia was present in 356 (29.3%) patients. Mean follow-up was 5.5 years. UA (HR 1.091 [1.035-1.150]; p = 0.001) and hyperuricemia (HR 1.750 [1.388-2.207]; p < 0.001) were significantly associated with MACE. Results were consistent between Cox regression and propensity matched analysis. Patients with hyperuricemia had a 1.6-fold increased relative risk for cardiovascular death (p = 0.005) and a 1.5-fold increased risk for MI (p = 0.032). For stroke, hyperuricemia only constituted a confounder (HR 1.104; p = 0.970). The prognostic accuracy of an established risk prediction model was significantly increased by adding UA (continuous NRI p = 0.004; categorical NRI p = 0.029; IDI p = 0.002). CONCLUSIONS Our data suggest an independent association of elevated UA with long-term MACE in ACS patients undergoing PCI. Whether lowering UA might be beneficial remains to be elucidated in large clinical trials.
Collapse
Affiliation(s)
- Maximilian Tscharre
- 3rd Medical Department with Cardiology and Intensive Care Medicine, Wilhelminen Hospital, Vienna, Austria.
| | - Robert Herman
- 3rd Medical Department with Cardiology and Intensive Care Medicine, Wilhelminen Hospital, Vienna, Austria
| | - Miklos Rohla
- 3rd Medical Department with Cardiology and Intensive Care Medicine, Wilhelminen Hospital, Vienna, Austria
| | - Christina Hauser
- 3rd Medical Department with Cardiology and Intensive Care Medicine, Wilhelminen Hospital, Vienna, Austria
| | - Serdar Farhan
- 3rd Medical Department with Cardiology and Intensive Care Medicine, Wilhelminen Hospital, Vienna, Austria
| | - Matthias K Freynhofer
- 3rd Medical Department with Cardiology and Intensive Care Medicine, Wilhelminen Hospital, Vienna, Austria
| | - Kurt Huber
- 3rd Medical Department with Cardiology and Intensive Care Medicine, Wilhelminen Hospital, Vienna, Austria; Sigmund Freud University, Medical Faculty, Vienna, Austria
| | - Thomas W Weiss
- 3rd Medical Department with Cardiology and Intensive Care Medicine, Wilhelminen Hospital, Vienna, Austria; Sigmund Freud University, Medical Faculty, Vienna, Austria
| |
Collapse
|
47
|
Kuwabara M, Hisatome I, Niwa K, Hara S, Roncal-Jimenez CA, Bjornstad P, Nakagawa T, Andres-Hernando A, Sato Y, Jensen T, Garcia G, Rodriguez-Iturbe B, Ohno M, Lanaspa MA, Johnson RJ. Uric Acid Is a Strong Risk Marker for Developing Hypertension From Prehypertension: A 5-Year Japanese Cohort Study. Hypertension 2017; 71:78-86. [PMID: 29203632 DOI: 10.1161/hypertensionaha.117.10370] [Citation(s) in RCA: 137] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 10/04/2017] [Accepted: 10/15/2017] [Indexed: 02/07/2023]
Abstract
Prehypertension frequently progresses to hypertension, a condition associated with high morbidity and mortality from cardiovascular diseases and stroke. However, the risk factors for developing hypertension from prehypertension remain poorly understood. We conducted a retrospective cohort study using the data from 3584 prehypertensive Japanese adults (52.1±11.0 years, 2081 men) found to be prehypertensive in 2004 and reexamined in 2009. We calculated the cumulative incidences of hypertension over 5 years, examined risk factors, and calculated odds ratios (ORs) for developing hypertension after adjustments for age, sex, body mass index, smoking and drinking habits, baseline systolic and diastolic blood pressure, pulse rate, diabetes mellitus, dyslipidemia, chronic kidney disease, and serum uric acid levels. The additional analysis evaluated whether serum uric acid (hyperuricemia) constituted an independent risk factor for developing hypertension. The cumulative incidence of hypertension from prehypertension over 5 years was 25.3%. There were no significant differences between women and men (24.4% versus 26.0%; P=0.28). The cumulative incidence of hypertension in subjects with hyperuricemia (n=726) was significantly higher than those without hyperuricemia (n=2858; 30.7% versus 24.0%; P<0.001). After multivariable adjustments, the risk factors for developing hypertension from prehypertension were age (OR, 1.023; P<0.001), female sex (OR, 1.595; P<0.001), higher body mass index (OR, 1.051; P<0.001), higher baseline systolic (OR, 1.072; P<0.001) and diastolic blood pressure (OR, 1.085; P<0.001), and higher serum uric acid (OR, 1.149; P<0.001). Increased serum uric acid is a strong risk marker for developing hypertension from prehypertension. Further studies are needed to determine whether treatment of hyperuricemia in prehypertensive subjects could impede the onset of hypertension.
Collapse
Affiliation(s)
- Masanari Kuwabara
- From the Division of Renal Diseases and Hypertension, School of Medicine, University of Colorado Denver, Aurora (M.K., C.A.R.-J., P.B., A.A.-H., Y.S., T.J., G.G., M.A.L., R.J.J.); Department of Cardiology (M.K., M.O.) and Health Management Center (S.H.), Toranomon Hospital, Tokyo, Japan; Cardiovascular Center, St. Luke's International Hospital, Tokyo, Japan (M.K., K.N.); Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Sciences, Yonago, Japan (I.H.); Children's Hospital Colorado and Barbara Davis Center for Childhood Diabetes, Aurora (P.B.); Department of Future Basic Medicine, Nara Medical University, Japan (T.N.); and Department of Nephrology, Hospital Universitario and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo (B.R.-I.).
| | - Ichiro Hisatome
- From the Division of Renal Diseases and Hypertension, School of Medicine, University of Colorado Denver, Aurora (M.K., C.A.R.-J., P.B., A.A.-H., Y.S., T.J., G.G., M.A.L., R.J.J.); Department of Cardiology (M.K., M.O.) and Health Management Center (S.H.), Toranomon Hospital, Tokyo, Japan; Cardiovascular Center, St. Luke's International Hospital, Tokyo, Japan (M.K., K.N.); Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Sciences, Yonago, Japan (I.H.); Children's Hospital Colorado and Barbara Davis Center for Childhood Diabetes, Aurora (P.B.); Department of Future Basic Medicine, Nara Medical University, Japan (T.N.); and Department of Nephrology, Hospital Universitario and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo (B.R.-I.)
| | - Koichiro Niwa
- From the Division of Renal Diseases and Hypertension, School of Medicine, University of Colorado Denver, Aurora (M.K., C.A.R.-J., P.B., A.A.-H., Y.S., T.J., G.G., M.A.L., R.J.J.); Department of Cardiology (M.K., M.O.) and Health Management Center (S.H.), Toranomon Hospital, Tokyo, Japan; Cardiovascular Center, St. Luke's International Hospital, Tokyo, Japan (M.K., K.N.); Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Sciences, Yonago, Japan (I.H.); Children's Hospital Colorado and Barbara Davis Center for Childhood Diabetes, Aurora (P.B.); Department of Future Basic Medicine, Nara Medical University, Japan (T.N.); and Department of Nephrology, Hospital Universitario and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo (B.R.-I.)
| | - Shigeko Hara
- From the Division of Renal Diseases and Hypertension, School of Medicine, University of Colorado Denver, Aurora (M.K., C.A.R.-J., P.B., A.A.-H., Y.S., T.J., G.G., M.A.L., R.J.J.); Department of Cardiology (M.K., M.O.) and Health Management Center (S.H.), Toranomon Hospital, Tokyo, Japan; Cardiovascular Center, St. Luke's International Hospital, Tokyo, Japan (M.K., K.N.); Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Sciences, Yonago, Japan (I.H.); Children's Hospital Colorado and Barbara Davis Center for Childhood Diabetes, Aurora (P.B.); Department of Future Basic Medicine, Nara Medical University, Japan (T.N.); and Department of Nephrology, Hospital Universitario and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo (B.R.-I.)
| | - Carlos A Roncal-Jimenez
- From the Division of Renal Diseases and Hypertension, School of Medicine, University of Colorado Denver, Aurora (M.K., C.A.R.-J., P.B., A.A.-H., Y.S., T.J., G.G., M.A.L., R.J.J.); Department of Cardiology (M.K., M.O.) and Health Management Center (S.H.), Toranomon Hospital, Tokyo, Japan; Cardiovascular Center, St. Luke's International Hospital, Tokyo, Japan (M.K., K.N.); Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Sciences, Yonago, Japan (I.H.); Children's Hospital Colorado and Barbara Davis Center for Childhood Diabetes, Aurora (P.B.); Department of Future Basic Medicine, Nara Medical University, Japan (T.N.); and Department of Nephrology, Hospital Universitario and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo (B.R.-I.)
| | - Petter Bjornstad
- From the Division of Renal Diseases and Hypertension, School of Medicine, University of Colorado Denver, Aurora (M.K., C.A.R.-J., P.B., A.A.-H., Y.S., T.J., G.G., M.A.L., R.J.J.); Department of Cardiology (M.K., M.O.) and Health Management Center (S.H.), Toranomon Hospital, Tokyo, Japan; Cardiovascular Center, St. Luke's International Hospital, Tokyo, Japan (M.K., K.N.); Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Sciences, Yonago, Japan (I.H.); Children's Hospital Colorado and Barbara Davis Center for Childhood Diabetes, Aurora (P.B.); Department of Future Basic Medicine, Nara Medical University, Japan (T.N.); and Department of Nephrology, Hospital Universitario and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo (B.R.-I.)
| | - Takahiko Nakagawa
- From the Division of Renal Diseases and Hypertension, School of Medicine, University of Colorado Denver, Aurora (M.K., C.A.R.-J., P.B., A.A.-H., Y.S., T.J., G.G., M.A.L., R.J.J.); Department of Cardiology (M.K., M.O.) and Health Management Center (S.H.), Toranomon Hospital, Tokyo, Japan; Cardiovascular Center, St. Luke's International Hospital, Tokyo, Japan (M.K., K.N.); Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Sciences, Yonago, Japan (I.H.); Children's Hospital Colorado and Barbara Davis Center for Childhood Diabetes, Aurora (P.B.); Department of Future Basic Medicine, Nara Medical University, Japan (T.N.); and Department of Nephrology, Hospital Universitario and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo (B.R.-I.)
| | - Ana Andres-Hernando
- From the Division of Renal Diseases and Hypertension, School of Medicine, University of Colorado Denver, Aurora (M.K., C.A.R.-J., P.B., A.A.-H., Y.S., T.J., G.G., M.A.L., R.J.J.); Department of Cardiology (M.K., M.O.) and Health Management Center (S.H.), Toranomon Hospital, Tokyo, Japan; Cardiovascular Center, St. Luke's International Hospital, Tokyo, Japan (M.K., K.N.); Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Sciences, Yonago, Japan (I.H.); Children's Hospital Colorado and Barbara Davis Center for Childhood Diabetes, Aurora (P.B.); Department of Future Basic Medicine, Nara Medical University, Japan (T.N.); and Department of Nephrology, Hospital Universitario and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo (B.R.-I.)
| | - Yuka Sato
- From the Division of Renal Diseases and Hypertension, School of Medicine, University of Colorado Denver, Aurora (M.K., C.A.R.-J., P.B., A.A.-H., Y.S., T.J., G.G., M.A.L., R.J.J.); Department of Cardiology (M.K., M.O.) and Health Management Center (S.H.), Toranomon Hospital, Tokyo, Japan; Cardiovascular Center, St. Luke's International Hospital, Tokyo, Japan (M.K., K.N.); Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Sciences, Yonago, Japan (I.H.); Children's Hospital Colorado and Barbara Davis Center for Childhood Diabetes, Aurora (P.B.); Department of Future Basic Medicine, Nara Medical University, Japan (T.N.); and Department of Nephrology, Hospital Universitario and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo (B.R.-I.)
| | - Thomas Jensen
- From the Division of Renal Diseases and Hypertension, School of Medicine, University of Colorado Denver, Aurora (M.K., C.A.R.-J., P.B., A.A.-H., Y.S., T.J., G.G., M.A.L., R.J.J.); Department of Cardiology (M.K., M.O.) and Health Management Center (S.H.), Toranomon Hospital, Tokyo, Japan; Cardiovascular Center, St. Luke's International Hospital, Tokyo, Japan (M.K., K.N.); Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Sciences, Yonago, Japan (I.H.); Children's Hospital Colorado and Barbara Davis Center for Childhood Diabetes, Aurora (P.B.); Department of Future Basic Medicine, Nara Medical University, Japan (T.N.); and Department of Nephrology, Hospital Universitario and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo (B.R.-I.)
| | - Gabriela Garcia
- From the Division of Renal Diseases and Hypertension, School of Medicine, University of Colorado Denver, Aurora (M.K., C.A.R.-J., P.B., A.A.-H., Y.S., T.J., G.G., M.A.L., R.J.J.); Department of Cardiology (M.K., M.O.) and Health Management Center (S.H.), Toranomon Hospital, Tokyo, Japan; Cardiovascular Center, St. Luke's International Hospital, Tokyo, Japan (M.K., K.N.); Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Sciences, Yonago, Japan (I.H.); Children's Hospital Colorado and Barbara Davis Center for Childhood Diabetes, Aurora (P.B.); Department of Future Basic Medicine, Nara Medical University, Japan (T.N.); and Department of Nephrology, Hospital Universitario and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo (B.R.-I.)
| | - Bernardo Rodriguez-Iturbe
- From the Division of Renal Diseases and Hypertension, School of Medicine, University of Colorado Denver, Aurora (M.K., C.A.R.-J., P.B., A.A.-H., Y.S., T.J., G.G., M.A.L., R.J.J.); Department of Cardiology (M.K., M.O.) and Health Management Center (S.H.), Toranomon Hospital, Tokyo, Japan; Cardiovascular Center, St. Luke's International Hospital, Tokyo, Japan (M.K., K.N.); Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Sciences, Yonago, Japan (I.H.); Children's Hospital Colorado and Barbara Davis Center for Childhood Diabetes, Aurora (P.B.); Department of Future Basic Medicine, Nara Medical University, Japan (T.N.); and Department of Nephrology, Hospital Universitario and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo (B.R.-I.)
| | - Minoru Ohno
- From the Division of Renal Diseases and Hypertension, School of Medicine, University of Colorado Denver, Aurora (M.K., C.A.R.-J., P.B., A.A.-H., Y.S., T.J., G.G., M.A.L., R.J.J.); Department of Cardiology (M.K., M.O.) and Health Management Center (S.H.), Toranomon Hospital, Tokyo, Japan; Cardiovascular Center, St. Luke's International Hospital, Tokyo, Japan (M.K., K.N.); Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Sciences, Yonago, Japan (I.H.); Children's Hospital Colorado and Barbara Davis Center for Childhood Diabetes, Aurora (P.B.); Department of Future Basic Medicine, Nara Medical University, Japan (T.N.); and Department of Nephrology, Hospital Universitario and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo (B.R.-I.)
| | - Miguel A Lanaspa
- From the Division of Renal Diseases and Hypertension, School of Medicine, University of Colorado Denver, Aurora (M.K., C.A.R.-J., P.B., A.A.-H., Y.S., T.J., G.G., M.A.L., R.J.J.); Department of Cardiology (M.K., M.O.) and Health Management Center (S.H.), Toranomon Hospital, Tokyo, Japan; Cardiovascular Center, St. Luke's International Hospital, Tokyo, Japan (M.K., K.N.); Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Sciences, Yonago, Japan (I.H.); Children's Hospital Colorado and Barbara Davis Center for Childhood Diabetes, Aurora (P.B.); Department of Future Basic Medicine, Nara Medical University, Japan (T.N.); and Department of Nephrology, Hospital Universitario and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo (B.R.-I.)
| | - Richard J Johnson
- From the Division of Renal Diseases and Hypertension, School of Medicine, University of Colorado Denver, Aurora (M.K., C.A.R.-J., P.B., A.A.-H., Y.S., T.J., G.G., M.A.L., R.J.J.); Department of Cardiology (M.K., M.O.) and Health Management Center (S.H.), Toranomon Hospital, Tokyo, Japan; Cardiovascular Center, St. Luke's International Hospital, Tokyo, Japan (M.K., K.N.); Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Sciences, Yonago, Japan (I.H.); Children's Hospital Colorado and Barbara Davis Center for Childhood Diabetes, Aurora (P.B.); Department of Future Basic Medicine, Nara Medical University, Japan (T.N.); and Department of Nephrology, Hospital Universitario and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo (B.R.-I.)
| |
Collapse
|
48
|
Todd AS, Walker RJ, MacGinley RJ, Kelly J, Merriman TR, Major TJ, Johnson RJ. Dietary Sodium Modifies Serum Uric Acid Concentrations in Humans. Am J Hypertens 2017; 30:1196-1202. [PMID: 28985270 DOI: 10.1093/ajh/hpx123] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 07/06/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Subjects with hypertension are frequently obese or insulin resistant, both conditions in which hyperuricemia is common. Obese and insulin-resistant subjects are also known to have blood pressure that is more sensitive to changes in dietary sodium intake. Whether hyperuricemia is a resulting consequence, moderating or contributing factor to the development of hypertension has not been fully evaluated and very few studies have reported interactions between sodium intake and serum uric acid. METHODS We performed further analysis of our randomized controlled clinical trials (Australian New Zealand Clinical Trials Registry #12609000161224 and #12609000292279) designed to assess the effects of modifying sodium intake on concentrations of serum markers, including uric acid. Uric acid and other variables (including blood pressure, renin, and aldosterone) were measured at baseline and 4 weeks following the commencement of low (60 mmol/day), moderate (150 mmol/day), and high (200-250 mmol/day) dietary sodium intake. RESULTS The median aldosterone-to-renin ratio was 1.90 [pg/ml]/[pg/ml] (range 0.10-11.04). Serum uric acid fell significantly in both the moderate and high interventions compared to the low sodium intervention. This pattern of response occurred when all subjects were analyzed, and when normotensive or hypertensive subjects were analyzed alone. CONCLUSIONS Although previously reported in hypertensive subjects, these data provide evidence in normotensive subjects of an interaction between dietary sodium intake and serum uric acid. As this interaction is present in the absence of hypertension, it is possible it could play a role in hypertension development, and will need to be considered in future trials of dietary sodium intake. CLINICAL TRIALS REGISTRATION The trials were registered with the Australian and New Zealand Clinical Trials Registry as ACTRN12609000161224 and ACTRN1260.
Collapse
Affiliation(s)
- Alwyn S Todd
- Mater Research Institute, The University of Queensland, Brisbane, Queensland, Australia
- Menzies Research Institute, Griffith University, Gold Coast, Queensland, Australia
- Department of Medicine, University of Otago, Dunedin, New Zealand
| | - Robert J Walker
- Department of Medicine, University of Otago, Dunedin, New Zealand
| | - Robert J MacGinley
- Department of Medicine, University of Otago, Dunedin, New Zealand
- Eastern Health Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Jaimon Kelly
- Department of Dietetics, School of Allied Health Sciences, Griffith University, Gold Coast, Queensland, Australia
- Faculty of Health Science and Medicine, Bond University, Gold Coast, Queensland, Australia
| | - Tony R Merriman
- Department of Biochemistry University of Otago, Dunedin, New Zealand
| | - Tanya J Major
- Department of Biochemistry University of Otago, Dunedin, New Zealand
| | - Richard J Johnson
- Division of Renal Diseases and Hypertension, University of Colorado, Aurora, Colorado, USA
| |
Collapse
|
49
|
McMullan CJ, Borgi L, Fisher N, Curhan G, Forman J. Effect of Uric Acid Lowering on Renin-Angiotensin-System Activation and Ambulatory BP: A Randomized Controlled Trial. Clin J Am Soc Nephrol 2017; 12:807-816. [PMID: 28320765 PMCID: PMC5477221 DOI: 10.2215/cjn.10771016] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 02/06/2017] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND OBJECTIVES Higher serum uric acid levels, even within the reference range, are strongly associated with increased activity of the renin-angiotensin system (RAS) and risk of incident hypertension. However, the effect of lowering serum uric acid on RAS activity in humans is unknown, although the data that lowering serum uric acid can reduce BP are conflicting. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS In a double-blind placebo-controlled trial conducted from 2011 to 2015, we randomly assigned 149 overweight or obese adults with serum uric acid ≥5.0 mg/dl to uric acid lowering with either probenecid or allopurinol, or to placebo. The primary endpoints were kidney-specific and systemic RAS activity. Secondary endpoints included mean 24-hour systolic BP, mean awake and asleep BP, and nocturnal dipping. RESULTS Allopurinol and probenecid markedly lowered serum uric acid after 4 and 8 weeks compared with placebo (mean serum uric acid in allopurinol, probenecid, and placebo at 8 weeks was 2.9, 3.5, and 5.6 mg/dl, respectively). The change in kidney-specific RAS activity, measured as change in the median (interquartile range) renal plasma flow response to captopril (in ml/min per 1.73 m2) from baseline to 8 weeks, was -4 (-25 to 32) in the probenecid group (P=0.83), -4 (-16 to 9) in the allopurinol group (P=0.32), and 1 (-21 to 17) in the placebo group (P=0.96), with no significant treatment effect (P=0.77). Similarly, plasma renin activity and plasma angiotensin II levels did not significantly change with treatment. The change in mean (±SD) 24-hour systolic BPs from baseline to 8 weeks was -1.6±10.1 with probenecid (P=0.43), -0.4±6.1 with allopurinol (P=0.76), and 0.5±6.0 with placebo (P=0.65); there was no significant treatment effect (P=0.58). Adverse events occurred in 9%, 12%, and 2% of those given probenecid, allopurinol, or placebo, respectively. CONCLUSIONS In contrast to animal experiments and observational studies, this randomized, placebo-controlled trial found that uric acid lowering had no effect on kidney-specific or systemic RAS activity after 8 weeks or on mean systolic BP. These data do not support the hypothesis that higher levels of uric acid are a reversible risk factor for increased BP.
Collapse
Affiliation(s)
| | - Lea Borgi
- Renal Division
- Channing Division of Network Medicine, and
| | - Naomi Fisher
- Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Gary Curhan
- Renal Division
- Channing Division of Network Medicine, and
| | - John Forman
- Renal Division
- Channing Division of Network Medicine, and
| |
Collapse
|
50
|
Abstract
BACKGROUND High blood pressure represents a major public health problem. Worldwide, approximately one-fourth of the adult population has hypertension. Epidemiological and experimental studies suggest a link between hyperuricemia and hypertension. Hyperuricemia affects 25% to 40 % of individuals with untreated hypertension; a much lower prevalence has been reported in normotensives or in the general population. However, whether lowering serum uric acid (UA) might lower blood pressure (BP) is an unanswered question. OBJECTIVES To determine whether UA-lowering agents reduce BP in patients with primary hypertension or prehypertension compared with placebo. SEARCH METHODS The Cochrane Hypertension Information Specialist searched the following databases for randomized controlled trials up to February 2016: the Cochrane Hypertension Specialised Register, the Cochrane Central Register of Controlled Trials (CENTRAL) (2016, Issue 2), MEDLINE (from 1946), Embase (from 1974), the World Health Organization International Clinical Trials Registry Platform, and ClinicalTrials.gov. We also searched LILACS up to March 2016 and contacted authors of relevant papers regarding further published and unpublished work. SELECTION CRITERIA To be included in this review, the studies had to meet the following criteria: 1) randomized or quasi-randomized, with a group assigned to receive a UA-lowering agent and another group assigned to receive placebo; 2) double-blind, single-blind or open-label; 3) parallel or cross-over trial; 4) cross-over trials had to have a washout period of at least two weeks; 5) minimum treatment duration of four weeks; 6) participants had to have a diagnosis of essential hypertension or prehypertension, and hyperuricemia (serum UA greater than 6 mg/dL in women, 7 mg/dL in men and 5.5 mg/dL in children/adolescents); 7) outcome measures assessed included change in clinic systolic, diastolic or 24-hour ambulatory BP. DATA COLLECTION AND ANALYSIS The two review authors independently collected the data using a data extraction form, and resolved any disagreements via discussion. We assessed risk of bias using the Cochrane Collaboration' Risk of bias' tool. MAIN RESULTS In this review update, we examined the abstracts of 349 identified papers and selected 21 for evaluation. We also identified three ongoing studies, the results of which are not yet available. Three other randomized controlled trials (RCTs) (two new), enrolling individuals with hypertension or prehypertension, and hyperuricemia, met the inclusion criteria for the review and were included in the meta-analysis. Low quality of evidence from three RCTs indicate no reduction in systolic (MD -6.2 mmHg, 95% CI -12.8 to 0.5) or diastolic (-3.9 mmHg, 95% CI -9.2 to 1.4) 24-hour ambulatory BP with UA-lowering drugs compared with placebo. Low quality of evidence from two RCTs reveal a reduction of systolic clinic BP (-8.43 mmHg, 95% CI -15.24 to -1.62) but not diastolic clinic BP (-6.45 mmHg, 95% CI -13.60 to 0.70). High quality of evidence from three RCTs indicates that serum UA levels were reduced by 3.1 mg/dL (95% CI 2.4 to 3.8) in the participants that received UA-lowering drugs. Very low quality of evidence from three RCTs suggests that withdrawals due to adverse effects were not increased with UA-lowering therapy (RR 1.86, 95% CI 0.43 to 8.10). AUTHORS' CONCLUSIONS In this updated systematic review, the RCT data available at present are insufficient to know whether UA-lowering therapy also lowers BP. More studies are needed.
Collapse
Affiliation(s)
- Pedro Henrique França Gois
- University of São PauloLaboratory of Medical Investigation ‐ LIM12 Nephrology DepartmentAv. Dr. Arnaldo, 455. Cerqueira CésarSão PauloBrazil01246‐903
| | | |
Collapse
|