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      Serum uric acid can predict higher C-reactive protein levels in apparently healthy men Translated title: Ácido úrico sérico puede predecir mayores niveles de proteína C-reactiva en hombres adultos sanos

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          Abstract

          Introduction: Epidemiological studies have shown an association between coronary heart disease and emerging cardiovascular risk factors, such as, levels of fibrinogen and high-sensitivity C-reactive protein (hs-CRP). Objectives: To verify the ability of biochemical indicators in discriminating changes in the levels of hs-CRP and fibrinogen, in apparently healthy adult men. Methods: Were evaluated 130 apparently healthy men (20-59 years), having measurement of weight and height. Biochemical measurements (lipid profile, fasting glucose, uric acid, hs-CRP and fibrinogen) were performed. Body mass index, total cholesterol/HDL-c and LDL-c/HDL-c ratios were calculated. It was considered as the cutoff point for hs-CRP values > 0.12 mg/dL and for fibrinogen the 50th percentile of the evaluated sample. Results: The uric acid showed the best correlation (r = 0.325) and the higher area under the ROC curve (0.704 ± 0.054), showing greater ability to discriminate higher levels of hs-CRP (p < 0.01). The total cholesterol/HDL-c ratio (r = 0.222) and the LDL-c/HDL-c ratio (r = 0.235) showed the best correlations and the higher areas under the ROC curves (0.624 ± 0.049 and 0.624 ± 0.049) in identify higher levels of fibrinogen (p < 0.05). Conclusion: The uric acid and the total cholesterol/HDL-c and the LDL-c/HDL-c ratios showed greater ability to identify changes in the levels of hs-CRP and fibrinogen, respectively. It was suggested the use of biochemical markers in the clinical practice, in order to establish preventive action for cardiovascular disease in apparently healthy adult men.

          Translated abstract

          Introducción: Los estudios epidemiológicos han demostrado una asociación entre la enfermedad coronaria y nuevos factores de riesgo cardiovascular, como, los niveles de proteína C-reactiva ultrasensible (PCR-us) y fibrinógeno. Objetivos: Evaluar la capacidad de los indicadores bioquímicos en discriminar cambios en los niveles de PCR-us y fibrinógeno, en hombres adultos sanos. Métodos: Se evaluaron 130 hombres (20-59 años). Se midió peso y talla. Se realizó mediciones bioquímicas (perfil lipidico, glucosa en ayunas, ácido úrico, PCR-us y fibrinógeno). Se calculó el índice de masa corporal, la relación colesterol total/HDL-c y la relación LDL-c/HDL-c. Se consideró como punto de corte para los valores de PCR-us > 0,12 mg/dL y para el fibrinógeno se utilizó el percentil 50 de la muestra evaluada. Resultados: El ácido úrico mostró la mejor correlación (r = 0,325) y el área más alta bajo la curva ROC (0,704 ± 0,054), mostrando una mayor capacidad predictiva para detectar niveles más altos de PCR-us (p < 0,01). La relación colesterol total/HDL-c (r = 0,222) y la relación LDL-c/HDL-c (r = 0,235) mostraron una mejor correlación y el área más alta bajo la curva ROC (0,624 ± 0,049 y 0,624 ± 0,049) en la identificación de niveles más altos de fibrinógeno (p < 0,05). Conclusiones: El ácido úrico y la relación colesterol total/HDL-c y la relación LDL-c/HDL-c mostraron una mayor capacidad predictiva para detectar cambios en los niveles de PCR-us y fibrinógeno, respectivamente. Se sugirió el uso de marcadores bioquímicos en la práctica clínica, a fin de establecer medidas preventivas para la enfermedad cardiovascular en hombres adultos sanos.

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          Obesity preventing and managing the global epidemic

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              Association of fibrinogen, C-reactive protein, albumin, or leukocyte count with coronary heart disease: meta-analyses of prospective studies.

              A large number of epidemiologic studies have reported on associations between various "inflammatory" factors and coronary heart disease (CHD). To assess the associations of blood levels of fibrinogen, C-reactive protein (CRP), and albumin and leukocyte count with the subsequent risk of CHD. Meta-analyses of any long-term prospective studies of CHD published before 1998 on any of these 4 factors. Studies were identified by MEDLINE searches, scanning of relevant reference lists, hand searching of cardiology, epidemiology, and other relevant journals, and discussions with authors of relevant reports. All relevant studies identified were included. The following information was abstracted from published reports (supplemented, in several cases, by the authors): size and type of cohort, mean age, mean duration of follow-up, assay methods, degree of adjustment for confounders, and relationship of CHD risk to the baseline assay results. For fibrinogen, with 4018 CHD cases in 18 studies, comparison of individuals in the top third with those in the bottom third of the baseline measurements yielded a combined risk ratio of 1.8 (95% confidence interval [CI], 1.6-2.0) associated with a difference in long-term usual mean fibrinogen levels of 2.9 pmol/L (0.1 g/dL) between the top and bottom thirds (10.3 vs 7.4 pmol/L [0.35 vs 0.25 g/dL]). For CRP, with 1053 CHD cases in 7 studies, the combined risk ratio of 1.7 (95% CI, 1.4-2.1) was associated with a difference of 1.4 mg/L (2.4 vs 1.0 mg/L). For albumin, with 3770 CHD cases in 8 studies, the combined risk ratio of 1.5 (95% CI, 1.3-1.7) was associated with a difference of 4 g/L (38 vs 42 g/L, ie, an inverse association). For leukocyte count, with 5337 CHD cases in the 7 largest studies, the combined risk ratio of 1.4 (95% CI, 1.3-1.5) was associated with a difference of 2.8 x 10(9)/L (8.4 vs 5.6 x 10(9)/L). Each of these overall results was highly significant (P<.0001). The published results from these prospective studies are remarkably consistent for each factor, indicating moderate but highly statistically significant associations with CHD. Hence, even though mechanisms that might account for these associations are not clear, further study of the relevance of these factors to the causation of CHD is warranted.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                nh
                Nutrición Hospitalaria
                Nutr. Hosp.
                Grupo Arán (Madrid, Madrid, Spain )
                0212-1611
                1699-5198
                April 2014
                : 29
                : 4
                : 935-940
                Affiliations
                [01] Viçosa Minas Gerais orgnameUniversidade Federal de Viçosa orgdiv1Department of Nutrition and Health Brazil
                Article
                S0212-16112014000400030
                10.3305/nh.2014.29.4.7094
                24679039
                95a863b7-b722-4835-898f-12b091c9875d

                This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 International License.

                History
                : 01 November 2013
                : 18 December 2013
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 35, Pages: 6
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                SciELO Spain


                Inflamación,Lipoproteins,Uric Acid,Fibrinogen,C-reactive protein,Inflammation,Lipoproteínas,Ácido úrico,Fibrinógeno,Proteína C-reactiva

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