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Quesada A, Quesada-Ocete J, Quesada-Ocete B, González-Ritonnale A, Marcaida-Benito G, Moral-Ronda VD, Jiménez-Bello J, Sahuquillo-Frias L, Rubini-Costa R, Lavie CJ, Morin DP, Guía-Galipienso FDL, Rubini-Puig R, Sanchis-Gomar F. Long-term hyperuricemia impact on atrial fibrillation outcomes. Curr Probl Cardiol 2024; 49:102608. [PMID: 38697331 DOI: 10.1016/j.cpcardiol.2024.102608] [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: 04/22/2024] [Accepted: 04/28/2024] [Indexed: 05/04/2024]
Abstract
BACKGROUND No studies have been conducted to analyze the impact of serum uric acid (UA) levels on the outcome of atrial fibrillation (AF) patients. We aimed to evaluate the effect of hyperuricemia (HU) on the prognosis of AF. METHODS AND RESULTS Consecutive patients who consulted our emergency room for an episode of AF, already known or newly diagnosed, between January 1, 2010, and December 31, 2015 (n=2017) were enrolled. After applying exclusion criteria, 1772 patients were included. Serum UA levels in the 6 months before or after the date of the episode were recorded and classified into quartiles: Q1 (n=443) serum UA levels <4.6 mg/dL; Q2 (n=430) 4.6-5.6 mg/dL; Q3 (n=435) 5.7-6.9 mg/dL; and Q4 (n=464) ≥7 mg/dL. Two groups were differentiated: patients without HU (Q1-Q3) and those with HU (Q4). The mean follow-up was 3.7 ± 1.4 years. The primary endpoint was all-cause mortality during follow-up. Mortality during follow-up in the bivariate analysis was higher (p < 0.001) in patients with HU (52.1 %) compared to those without it (35.3 %), confirming multivariate Cox analysis of HU as an independent risk factor for death [hazard ratio 1.89 (1.59-2.25)]. Kaplan-Meier survival analysis showed a shorter survival time in patients with HU (log-rank test, p<0.001). Cox analysis confirmed significant differences in the risk of heart failure (30 % vs. 22 %) in patients with HU. CONCLUSIONS HU is independently associated with an increased risk for all-cause mortality and hospitalization for heart failure in patients with AF.
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Affiliation(s)
- Aurelio Quesada
- Arrhythmia Unit, Cardiology Service, General University Hospital Consortium of Valencia, Valencia, Spain; School of Medicine, Catholic University of Valencia San Vicente Mártir, Valencia, Spain; Department of Internal Medicine, Hospital Universitario y Politécnico La Fe, Valencia, Spain.
| | - Javier Quesada-Ocete
- Arrhythmia Unit, Cardiology Service, General University Hospital Consortium of Valencia, Valencia, Spain; School of Medicine, Catholic University of Valencia San Vicente Mártir, Valencia, Spain
| | - Blanca Quesada-Ocete
- Department of Cardiology II/Electrophysiology, Center of Cardiology, University Medical Center, Johannes Gutenberg-University Mainz, Germany
| | - Adrian González-Ritonnale
- Arrhythmia Unit, Cardiology Service, General University Hospital Consortium of Valencia, Valencia, Spain
| | - Goizane Marcaida-Benito
- Laboratory Medicine Service, General University Hospital Consortium of Valencia, Valencia, Spain
| | - Víctor Del Moral-Ronda
- Department of Cardiology. Hospital Universitario de Tarragona Joan XXVIII. Tarragona, Spain
| | - Javier Jiménez-Bello
- Arrhythmia Unit, Cardiology Service, General University Hospital Consortium of Valencia, Valencia, Spain
| | - Laura Sahuquillo-Frias
- Laboratory Medicine Service, General University Hospital Consortium of Valencia, Valencia, Spain
| | | | - Carl J Lavie
- John Ochsner Heart and Vascular Institute, Ochsner Clinical School - The University of Queensland School of Medicine, New Orleans, LA, USA
| | - Daniel P Morin
- John Ochsner Heart and Vascular Institute, Ochsner Clinical School - The University of Queensland School of Medicine, New Orleans, LA, USA
| | - Fernando de la Guía-Galipienso
- School of Medicine, Catholic University of Valencia San Vicente Mártir, Valencia, Spain; Glorieta Policlinic, Denia, Alicante, Spain; Cardiology Service, Hospital HCB Benidorm, Alicante, Spain
| | - Ricardo Rubini-Puig
- Emergency Room Department, General University Hospital Consortium of Valencia, Valencia, Spain
| | - Fabian Sanchis-Gomar
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, California, USA.
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2
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Liu J, Lin C, Wu M, Wang Y, Chen S, Yang T, Xie C, Kong Y, Wu W, Wang J, Ma X, Teng C. Co-delivery of indomethacin and uricase as a new strategy for inflammatory diseases associated with high uric acid. Drug Deliv Transl Res 2024; 14:1820-1838. [PMID: 38127247 DOI: 10.1007/s13346-023-01487-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/27/2023] [Indexed: 12/23/2023]
Abstract
Uric acid is the final metabolite in humans. High level of uric acid chronically induces urate deposition, aggravates kidney damage, and concomitantly causes an increase in inflammatory factors. Alleviating acute inflammation and decreasing uric acid levels are the key points in the treatment of inflammatory diseases associated with high uric acid. However, a drug delivery system that combines anti-inflammatory and uric acid reduction functions at the same time remains a challenge to be settled. Here, we designed a nanocrystal-based co-delivery platform, IND Nplex, characterized by loading of indomethacin (IND) and uricase. Compared with free IND or uricase, IND Nplex possessed a better anti-inflammatory effect by restraining the release of inflammation-related factors in vitro. In addition, pharmacokinetic and biodistribution studies revealed that IND Nplex significantly prolonged the retention time in vivo and was more concentrated in the kidney. In acute gouty arthritis model rats, IND Nplex markedly relieved ankle joint swelling and mitigated synovial inflammation. In acute kidney injury model rats, IND Nplex indicated better biocompatibility and significant amelioration of renal fibrosis. Moreover, IND Nplex showed the effect of anti-inflammatory and improved renal function via determination of inflammatory factors and biochemical markers in the serum and kidney. In conclusion, these results indicate that IND Nplex exerts anti-inflammatory activity and uric acid-lowering effect and could become a promising candidate for the treatment of uric acid-related diseases.
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Affiliation(s)
- Jie Liu
- Department of Pharmacy, Jiujiang Hospital of Traditional Chinese Medicine, Jiujiang, Jiangxi, 332000, China
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Chenshi Lin
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Man Wu
- Department of Pharmacy, Jiujiang Hospital of Traditional Chinese Medicine, Jiujiang, Jiangxi, 332000, China
| | - Yingjie Wang
- Center for Translational Imaging, Northeastern University, 360 Huntington Ave., Boston, MA, 02115, USA
| | - Shenyu Chen
- Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Taiwang Yang
- Department of Pharmacy, Jiujiang Hospital of Traditional Chinese Medicine, Jiujiang, Jiangxi, 332000, China
| | - Chenlu Xie
- Department of Pharmacy, Jiujiang Hospital of Traditional Chinese Medicine, Jiujiang, Jiangxi, 332000, China
| | - Yue Kong
- Department of Pharmacy, Jiujiang Hospital of Traditional Chinese Medicine, Jiujiang, Jiangxi, 332000, China
| | - Wenliang Wu
- Department of Pharmacy, Jiujiang Hospital of Traditional Chinese Medicine, Jiujiang, Jiangxi, 332000, China
| | - Jiaping Wang
- Department of Pharmacy, Jiujiang Hospital of Traditional Chinese Medicine, Jiujiang, Jiangxi, 332000, China
| | - Xiaonan Ma
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China.
- Public Experimental Platform, China Pharmaceutical University, Nanjing, 210009, China.
| | - Chao Teng
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China.
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Biomakers in Chronic Chagas Cardiomyopathy. Microorganisms 2022; 10:microorganisms10081602. [PMID: 36014020 PMCID: PMC9412448 DOI: 10.3390/microorganisms10081602] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 06/22/2022] [Accepted: 07/29/2022] [Indexed: 11/17/2022] Open
Abstract
The primary objective was to observe the relationship between serum levels of BNP, Ca-125, C-reactive protein and uric acid as prognostic and functional markers in patients with chronic Chagas cardiomyopathy (CCC). Circulating levels of cytokines: IL-1β, TNFα, IL-10, IL6, IL-8 and IL-12 were determined and investigated regarding their association with hemodynamic parameters, clinical signs of heart failure and outcome. Chagas is still a neglected disease that affects numerous individuals, many of them in their most productive years. CCC with left ventricular dysfunction is the most severe presentation of Chagas Disease. BNP is a well-recognized prognostic and clinical biomarker, not only in chronic heart failure patients but also in patients with CCC. Previous studies have shown Ca-125, C-reactive protein, and uric acid to be potentially good prognostic markers in heart failure (HF). Fifty patients with left ventricular fraction less (LVEF) than 55% were selected and followed for a mean period of 18 ± 8.3 months. Patient’s mean age was 43.42 ± 10.3 years (32 male), their BNP was 293 (160–530) pg/mL, Ca-125 8.5 (5.5–16.75) U/mL, uric acid 6.2 ± 2 mg/dL, and C- reactive protein 4.5 (4.5–7.3) mg/L. Patients who had LVEF less than 35% had higher BNP (p = 0.0023), Ca-125 (p = 0.027) and uric acid (p = 0.01) serum levels. Patients who died also showed higher BNP (p = 0.01), uric acid (p = 0.05) and a trend towards higher Ca-125 serum levels (p = 0.056). All markers: BNP, Ca-125, uric acid and C-reactive had good predictability of death in Cox-regression univariate analysis, however, not on the final multivariate model. Of the inflammatory cytokines, IL-8 and IL-12 showed a relation to LVEF of less than 35%. IL-12 was related to adverse cardiovascular events and non-survival. IL-1β was a good predictor of mortality in the final Cox regression model. Determination of Ca-125, uric acid levels and C-reactive protein may add useful clinical and prognostic information and may help clinical decision making for patients with CCC.
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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.
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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.)
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Hansildaar R, Vedder D, Baniaamam M, Tausche AK, Gerritsen M, Nurmohamed MT. Cardiovascular risk in inflammatory arthritis: rheumatoid arthritis and gout. THE LANCET. RHEUMATOLOGY 2021; 3:e58-e70. [PMID: 32904897 PMCID: PMC7462628 DOI: 10.1016/s2665-9913(20)30221-6] [Citation(s) in RCA: 106] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The increased risk of cardiovascular morbidity and mortality in rheumatoid arthritis and gout has been increasingly acknowledged in past decades, with accumulating evidence that gout, just as with rheumatoid arthritis, is an independent cardiovascular risk factor. Although both diseases have a completely different pathogenesis, the underlying pathophysiological mechanisms in systemic inflammation overlap to some extent. Following the recognition that systemic inflammation has an important causative role in cardiovascular disease, anti-inflammatory therapy in both conditions and urate-lowering therapies in gout are expected to lower the cardiovascular burden of patients. Unfortunately, much of the existing data showing that urate-lowering therapy has consistent beneficial effects on cardiovascular outcomes in patients with gout are of low quality and contradictory. We will discuss the latest evidence in this respect. Cardiovascular disease risk management for patients with rheumatoid arthritis and gout is essential. Clinical guidelines and implementation of cardiovascular risk management in daily clinical practice, as well as unmet needs and areas for further investigation, will be discussed.
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Affiliation(s)
- Romy Hansildaar
- Amsterdam Rheumatology and Immunology Center, Amsterdam University Medical Center, Vrije Universiteit Amsterdam and Reade, Amsterdam, Netherlands.,Amsterdam Cardiovascular Sciences, Amsterdam, Netherlands
| | - Daisy Vedder
- Amsterdam Rheumatology and Immunology Center, Amsterdam University Medical Center, Vrije Universiteit Amsterdam and Reade, Amsterdam, Netherlands.,Amsterdam Cardiovascular Sciences, Amsterdam, Netherlands
| | - Milad Baniaamam
- Amsterdam Rheumatology and Immunology Center, Amsterdam University Medical Center, Vrije Universiteit Amsterdam and Reade, Amsterdam, Netherlands.,Amsterdam Cardiovascular Sciences, Amsterdam, Netherlands
| | - Anne-Kathrin Tausche
- Department of Rheumatology, University Clinic Carl Gustav Carus at TU Dresden, Dresden, Germany
| | - Martijn Gerritsen
- Amsterdam Rheumatology and Immunology Center, Amsterdam University Medical Center, Vrije Universiteit Amsterdam and Reade, Amsterdam, Netherlands
| | - Michael T Nurmohamed
- Amsterdam Rheumatology and Immunology Center, Amsterdam University Medical Center, Vrije Universiteit Amsterdam and Reade, Amsterdam, Netherlands.,Amsterdam Cardiovascular Sciences, Amsterdam, Netherlands
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Barazani SH, Chi WW, Pyzik R, Chang H, Jacobi A, O’Donnell T, Fayad ZA, Ali Y, Mani V. Quantification of uric acid in vasculature of patients with gout using dual-energy computed tomography. World J Radiol 2020; 12:184-194. [PMID: 32913564 PMCID: PMC7457162 DOI: 10.4329/wjr.v12.i8.184] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 06/16/2020] [Accepted: 07/19/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Gout, caused by hyperuricemia and subsequent deposition of aggregated monosodium urate crystals (MSU) in the joints or extra-articular regions, is the most common inflammatory arthritis. There is increasing evidence that gout is an independent risk factor for hypertension, cardiovascular disease progression and mortality.
AIM To evaluate if dual energy computed tomography (DECT) could identify MSU within vessel walls of gout patients, and if MSU deposits within the vasculature differed between patients with gout and controls. This study may help elucidate why individuals with gout have increased risk for cardiovascular disease.
METHODS 31 gout patients and 18 controls underwent DECT scans of the chest and abdomen. A material decomposition algorithm was used to distinguish regions of MSU (coded green), and calcifications (coded purple) from soft tissue (uncoded). Volume of green regions was calculated using a semi-automated volume assessment program. Between-group differences were analyzed using Mann-Whitney U exact test and nonparametric rank regression.
RESULTS Gout patients had significantly higher volume of MSU within the aorta compared to controls [Median (Min-Max) of 43.9 (0-1113.5) vs 2.9 (0-219.4), P = 0.01]. Number of deposits was higher in gout patients compared to controls [Median (Min-Max) of 20 (0-739) vs 1.5 (0-104), P = 0.008]. However, the difference was insignificant after adjustment for age, gender, history of cardiovascular disease and diabetes. Increased age was positively associated with total urate volume (rs = 0.64; 95% confidence interval: 0.43-0.78).
CONCLUSION This pilot study showed that DECT can quantify vascular urate deposits with variation across groups, with gout patients possibly having higher deposition. This relationship disappeared when adjusted for age, and there was a positive relationship between age and MSU deposition. While this study does not prove that green coded regions are truly MSU deposition, it corroborates recent studies that show the presence of vascular deposition.
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Affiliation(s)
- Sharon Hannah Barazani
- Department of Radiology, Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Wei-Wei Chi
- Division of Rheumatology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Renata Pyzik
- Department of Radiology, Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Helena Chang
- Center for Biostatistics, Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Adam Jacobi
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | | | - Zahi A Fayad
- Department of Radiology, Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Yousaf Ali
- Division of Rheumatology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Venkatesh Mani
- Department of Radiology, Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
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The impact of adoption of a new urate-lowering agent on trends in utilization and cost in practice. PLoS One 2019; 14:e0221504. [PMID: 31449565 PMCID: PMC6709886 DOI: 10.1371/journal.pone.0221504] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 06/13/2019] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVES Changes in treatment choice of therapy and size of treated population that can lead to under- or overestimate of payer's budget are less likely to be reassured after reimbursement adoption of a new drug. The aim of this study was to evaluate the effects of febuxostat introduction and the modifications in its insurance coverage on the utilization and expenditure of urate-lowering therapy (ULT). METHODS Electronic medical records for adults patients prescribed any ULT during 2010-2015 was derived from the largest medical organization in Taiwan. Aggregated estimates of ULT use and costs were assessed per 3-month and per patient per month (PPPM). Factors associated with total ULT expenditure were assessed using a time series design with factored Autoregressive Integrated Moving Average (ARIMA) models. RESULTS ULT prevalent users increased 34.1% from 2010 to 2015 and a 123% increase in total ULT expenditure. Numbers on allopurinol and sulfinpyrazone both declined 31%, and on benzbromarone and febuxostat gradually increased to 38.21% and 22.89% of all users in 2015. Insurance payments PPPM ($4.44 to $9.22) and total monthly ULT cost ($32,946 to $ 85,732) growth more than doubled in 6 years, trend changes generated mostly by individuals switching to febuxostat. CONCLUSIONS ULT use moved to favor benzbromarone and febuxostat; greater expensive uptake for febuxostat led to a rapid rise in ULT cost. Marginal values of increasing access to febuxostat for asymptomatic hyperuricemia should be focus on future studies to facilitate drug prices negotiation and ensure appropriate ULT use.
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Cardiovascular Risk in Type 2 Diabetic Patients With Asymptomatic Hyperuricemia and Gout. ACTA MEDICA BULGARICA 2019. [DOI: 10.2478/amb-2019-0012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Abstract
Aim: To study the differences in cardiovascular risk between type 2 diabetic and non-diabetic patients with asymptomatic hyperuricemia and gout using the Framingham Risk Score (FRS) and complex multimodal ultrasonography.
Patients and methods: A total of 201 patients participated, divided into two groups: 1/ patients with asymptomatic hyperuricemia (n = 52), and 2/ patients with gout (n = 149). FRS was determined as well as ultrasound parameters, independent predictors of cardiovascular risk: left atrial size (LA), intima-media thickness (IMT) and common carotid artery resistive index (CCARI).
Results: The patients in the two groups were age-matched and conventional cardiovascular risk factors were equally distributed. In the asymptomatic hyperuricemia group, 12 patients (23.1%) had diabetes. In this group, there was no difference in FRS between diabetic and non-diabetic individuals. However, diabetic patients had larger LA, thicker intima-media and higher CCARI. In the gout group 18 subjects (12%) had diabetes, but the FRS, LA, IMT and CCARI values were similar among diabetic and non-diabetic patients. Furthermore, when gout subjects were subdivided according to the presence of tophi, we found that the subgroup having gouty tophi and diabetes had larger LA (p = 0.014) compared to those with gouty tophi without diabetes.
Conclusion: In diabetic patients with asymptomatic hyperuricemia and gouty tophi, a more complex approach for estimation of cardiovascular risk is needed. Our work suggests that diabetes and tophi might potentiate their action on the cardiovascular system.
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Pharmacological inhibition of autophagy by 3-MA attenuates hyperuricemic nephropathy. Clin Sci (Lond) 2018; 132:2299-2322. [PMID: 30293967 PMCID: PMC6376616 DOI: 10.1042/cs20180563] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 09/30/2018] [Accepted: 10/05/2018] [Indexed: 12/17/2022]
Abstract
Autophagy has been identified as a cellular process of bulk degradation of cytoplasmic components and its persistent activation is critically involved in the renal damage induced by ureteral obstruction. However, the role and underlying mechanisms of autophagy in hyperuricemic nephropathy (HN) remain unknown. In the present study, we observed that inhibition of autophagy by 3-methyladenine (3-MA) abolished uric acid-induced differentiation of renal fibroblasts to myofibroblasts and activation of transforming growth factor-β1 (TGF-β1), epidermal growth factor receptor (EGFR), and Wnt signaling pathways in cultured renal interstitial fibroblasts. Treatment with 3-MA also abrogated the development of HN in vivo as evidenced by improving renal function, preserving renal tissue architecture, reducing the number of autophagic vacuoles, and decreasing microalbuminuria. Moreover, 3-MA was effective in attenuating renal deposition of extracellular matrix (ECM) proteins and expression of α-smooth muscle actin (α-SMA) and reducing renal epithelial cells arrested at the G2/M phase of cell cycle. Injury to the kidney resulted in increased expression of TGF-β1 and TGFβ receptor I, phosphorylation of Smad3 and TGF-β-activated kinase 1 (TAK1), and activation of multiple cell signaling pathways associated with renal fibrogenesis, including Wnt, Notch, EGFR, and nuclear factor-κB (NF-κB). 3-MA treatment remarkably inhibited all these responses. In addition, 3-MA effectively suppressed infiltration of macrophages and lymphocytes as well as release of multiple profibrogenic cytokines/chemokines in the injured kidney. Collectively, these findings indicate that hyperuricemia-induced autophagy is critically involved in the activation of renal fibroblasts and development of renal fibrosis and suggest that inhibition of autophagy may represent a potential therapeutic strategy for HN.
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