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Jérémy Flais, Edouard Bardou-Jacquet, Yves Deugnier, Guillaume Coiffier, Aleth Perdriger, Gérard Chalès, Martine Ropert, Olivier Loréal, Pascal Guggenbuhl
OBJECTIVES: Hyperuricemia is becoming increasingly frequent in the population, and is known to be sometimes the cause of gout. The impact of uric acid is still not clearly understood, however. The iron metabolism may interact with the uric acid metabolism. The aim of this study was to examine the relationship between the serum uric acid and serum ferritin levels in a cohort of hemochromatosis patients who were homozygous for the HFE p.Cys282Tyr mutation. METHODS: 738 patients with the HFE gene mutation Cys282Tyr in the homozygous state were included in the study...
September 19, 2016: Joint, Bone, Spine: Revue du Rhumatisme
Pascal Barat, Marie-Claire Meiffred, Julie Brossaud, Dietmar Fuchs, Jean-Benoit Corcuff, Helene Thibault, Lucile Capuron
Alterations in endocrine functions and low-grade systemic inflammation represent fundamental characteristics of obesity. These biological systems have been repeatedly linked to fatigue symptoms. The aim of the study was to assess the relationship between fatigue dimensions and metabolic/inflammatory markers in a sample of non-diabetic obese children. The possibility that inflammation-induced alterations in tryptophan metabolism relates to specific dimensions of fatigue was also investigated in a subsample of patients...
September 8, 2016: Psychoneuroendocrinology
Alena Krajcoviechova, Johanne Tremblay, Peter Wohlfahrt, Jan Bruthans, Muhmmad Ramzan Tahir, Pavel Hamet, Renata Cifkova
BACKGROUND: The impact of metabolic phenotypes on the association of uricemia with urinary albumin/creatinine ratio (uACR) remains unresolved. We evaluated the association between serum uric acid and uACR in persons with 0, and 1-2 metabolic syndrome (MetS) components and determined the modification effects of visceral adiposity index (VAI), mean arterial pressure (MAP), and fasting glucose on this association. METHODS: Using data from a cross-sectional survey of a representative Czech population aged 25-64 years (n = 3612), we analyzed 1,832 persons without decreased glomerular filtration rate <60ml/min/1...
August 26, 2016: American Journal of Hypertension
Nourhene Oueslati, Kamel Charradi, Takwa Bedhiafi, Ferid Limam, Ezzedine Aouani
The present work deal with the effect of alloxan-induced diabetes on kidney oxidative stress and dysfunction of virgin and pregnant rat as well as the protection that may be afforded by high dosage GSSE (4g/kg) treatment. Diabetes affected negatively several kidney function parameters as creatinemia, uremia, uricemia and proteinuria without affecting kidney index. Diabetes also induced an oxidative stress characterized by increased lipid and protein oxidation, a drop in antioxidant enzyme defenses as catalase, superoxide-dismutase, glutathione-peroxidase, an alteration in transition metals as free iron, copper, selenium and associated enzymes and an increase in calpain and acetyl-cholinesterase activities...
July 23, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Sanjay Kalra, Vikram Singh, Dinesh Nagrale
UNLABELLED: Blood glucose-lowering treatment options generally target insulin action or beta-cell function. In diabetes, expression of the sodium-glucose cotransporter-2 (SGLT2) genes is up-regulated and renal threshold increased, resulting in increased glucose reabsorption from glomerular filtrate, reducing urinary glucose excretion and worsening the hyperglycemic condition. The SGLT2 inhibitors (SGLT2i) are a novel class of anti-diabetic drugs that lower blood glucose levels through the suppression of renal glucose reabsorption thereby promoting renal glucose excretion...
September 2016: Advances in Therapy
Giulio Geraci, Giuseppe Mulè, Massimiliano Morreale, Claudia Cusumano, Antonella Castiglia, Francesca Gervasi, Francesco D'Ignoto, Manuela Mogavero, Calogero Geraci, Santina Cottone
The role of systemic vascular involvement in mediating the association between serum uric acid (SUA) and renal function in hypertension has not been explored. Main purpose of our study was to investigate whether morphofunctional vascular changes, assessed as carotid intima-media thickness (cIMT) and aortic pulse wave velocity (aPWV), might mediate the association between SUA and renal damage. We enrolled 523 hypertensive subjects with or without chronic kidney disease and divided population into tertiles of SUA based on sex-specific cutoff values...
July 2016: Journal of the American Society of Hypertension: JASH
Maria Giulia Battelli, Letizia Polito, Massimo Bortolotti, Andrea Bolognesi
Human xanthine oxidoreductase (XOR) catalyzes the last two steps of purine catabolism and is present in two interconvertible forms, which may utilize O2 or NAD(+) as electron acceptors. In addition to uric acid, XOR products may comprise reactive oxygen and nitrogen species that have many biologic effects, including inflammation, endothelial dysfunction, and cytotoxicity, as well as mutagenesis and induction of proliferation. XOR is strictly modulated at the transcriptional and post-translational levels, and its expression and activity are highly variable in cancer...
March 2016: Cancer Medicine
Karel Pavelka
Gout is an inflammatory, metabolically conditioned crystal-induced disease. Prevalence of gout is on the increase. In clinical practice it is frequently wrongly diagnosed and the therapy of acute attacks in particular is not adequate. The first part of the publication discusses diagnostic possibilities of gouty arthritis. First of all the advantage of the analysis of synovial exudate and of direct evidence of crystals in the polarization microscope is emphasized. If the material for crystallographic analysis is not available, it is necessary to use a combination of clinical criteria as specified e...
June 2015: Vnitr̆ní Lékar̆ství
Claudio Borghi, Enrico Agabiti Rosei, Thomas Bardin, Jesse Dawson, Anna Dominiczak, Jan T Kielstein, Athanasios J Manolis, Fernando Perez-Ruiz, Giuseppe Mancia
Substantial evidence suggests that chronic hyperuricemia is an independent risk factor for hypertension, metabolic syndrome, chronic kidney disease (CKD) and cardiovascular diseases. This highlights the need for greater attention to serum uric acid levels when profiling patients, and suggests that the threshold above which uricemia is considered abnormal is 6  mg/dl, in light of the available evidence. Another important question is whether lowering serum uric acid can improve cardiovascular and renal outcomes, and what therapeutic mechanism of action could provide more clinical benefits to patients; the available literature shows a trend toward improvement associated with administration of urate-lowering drugs, in particular for the xanthine oxidase inhibitors...
September 2015: Journal of Hypertension
P Nazzaro, G Schirosi, L De Benedittis, D Mezzapesa, F Federico
OBJECTIVE: Reduced (L) Vit D (D) and high (H) uric acid (U) levels have been associate with increased cardiovascular risk. Aim of the study was to highlight their association with the subclinical vascular damage in untreated recently diagnosed very mild hypertensives with a similar number of metabolic syndrome factors (nATPIII). DESIGN AND METHOD: By medical visit and identification of the metabolic syndrome factors, 238 very mild hypertensives (136 ± 15/84 ± 9 mmHg), 62 controls with normal (N) D and U, 96 with LD, 40 with HU and 40 with both the conditions (LDHU) with similar metabolic assessment, underwent measures of carotid-femoral pulse wave velocity (PWV), ankle-brachial index (ABI), carotid intima-media thickness (IMT), as indices of functional and structural arterial damage, and videocapillaroscopy of the middle and distal phalangeal skin of the 2nd, 3rd and 4th finger of the non-dominant hand during baseline (CAP) and venous congestion (CVC) obtaining capillary recruitment (REC) as indices of functional and structural microcirculatory damage...
June 2015: Journal of Hypertension
Francesco Trepiccione, Alessandra F Perna
During human evolution, the accumulation of loss of function mutations of the uricase gene led progressively to the lack of the ability to metabolize uric acid into further end-products. Consequently, serum uric acid levels progressively increased over time along with the dietary availability of purine-rich foods. At first, the increase in uricemia contributed positively to primate development by increasing the antioxidant power of the organism, favouring an increase in blood pressure and lipid metabolism. However, later, these positive effects have been overcome by more dangerous consequences...
2015: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
T Pramanik, B Khatiwada, P Pradhan
Preeclampsia is a serious pregnancy complication characterized by hypertension, proteinuria with or without pathological edema. According to some studies, serum uric acid lacks sensitivity and specificity as a diagnostic tool whereas another group of the researchers indicated uricemia as a predictor of preeclampsia in pregnant ladies. The present study was designed to assess whether serum uric acid can be used as a biochemical indicator or not in preeclamptic patients. Pre-eclamptic patients admitted in Nepal Medical College Teaching Hospital from June 2012 to June 2013 were included in this study...
September 2014: Nepal Medical College Journal: NMCJ
William J Taylor, Jaap Fransen, Tim L Jansen, Nicola Dalbeth, H Ralph Schumacher, Melanie Brown, Worawit Louthrenoo, Janitzia Vazquez-Mellado, Maxim Eliseev, Geraldine McCarthy, Lisa K Stamp, Fernando Perez-Ruiz, Francisca Sivera, Hang-Korng Ea, Martijn Gerritsen, Carlo Scire, Lorenzo Cavagna, Chingtsai Lin, Yin-Yi Chou, Anne Kathrin Tausche, Ana Beatriz Vargas-Santos, Matthijs Janssen, Jiunn-Horng Chen, Ole Slot, Marco A Cimmino, Till Uhlig, Tuhina Neogi
OBJECTIVE: To determine which clinical, laboratory, and imaging features most accurately distinguished gout from non-gout. METHODS: We performed a cross-sectional study of consecutive rheumatology clinic patients with ≥1 swollen joint or subcutaneous tophus. Gout was defined by synovial fluid or tophus aspirate microscopy by certified examiners in all patients. The sample was randomly divided into a model development (two-thirds) and test sample (one-third). Univariate and multivariate association between clinical features and monosodium urate-defined gout was determined using logistic regression modeling...
September 2015: Arthritis Care & Research
Lourdes Rodríguez, Paola Otero, María I Panadero, Silvia Rodrigo, Juan J Álvarez-Millán, Carlos Bocos
Objective. Fructose intake from added sugars correlates with the epidemic rise in metabolic syndrome and cardiovascular diseases. However, consumption of beverages containing fructose is allowed during gestation. Recently, we found that an intake of fructose (10% wt/vol) throughout gestation produces an impaired fetal leptin signalling. Therefore, we have investigated whether maternal fructose intake produces subsequent changes in their progeny. Methods. Blood samples from fed and 24 h fasted female and male 90-day-old rats born from fructose-fed, glucose-fed, or control mothers were used...
2015: Journal of Nutrition and Metabolism
Olivier Hanon, Clemence Boully, Laure Caillard, Florian Labourée, Sophie Cochiello, Edouard Chaussade
BACKGROUND: Combination treatments for hypertension most often include a renin-angiotensin-aldosterone system (RAAS) inhibitor. However, systolic blood pressure (SBP) remains difficult to control. Non-RAAS-inhibiting strategies such as calcium channel blocker/thiazide-like diuretic combinations may offer effective alternatives. METHODS: Hypertensive diabetic patients with microalbuminuria were included in this retrospective, post-hoc analysis of the Natrilix SR Versus Enalapril Study in Hypertensive Type 2 Diabetics With MicrOalbuminuRia (NESTOR) trial if they were uncontrolled on monotherapy (indapamide slow release (SR) 1...
August 2015: American Journal of Hypertension
Frederic Preitner, Anabela Pimentel, Salima Metref, Corinne Berthonneche, Alexandre Sarre, Catherine Moret, Samuel Rotman, Gabriel Centeno, Dmitri Firsov, Bernard Thorens
Urate is the metabolic end point of purines in humans. Although supra-physiological plasma urate levels are associated with obesity, insulin resistance, dyslipidemia, and hypertension, a causative role is debated. We previously established a mouse model of hyperuricemia by liver-specific deletion of Glut9, a urate transporter that provides urate to the hepatocyte enzyme uricase. These LG9 knockout mice show mild hyperuricemia (120 μmol/l), which can be further increased by the urate precursor inosine. Here, we explored the role of progressive hyperuricemia on the cardiovascular function...
May 2015: Kidney International
Eva Kostalova, Karel Pavelka, Hana Vlaskova, Dita Musalkova, Blanka Stiburkova
BACKGROUND: X-linked hypoxanthine-guanine phosphoribosyltransferase (HPRT) deficiency in an inherited disorder of purine metabolism is usually associated with the clinical manifestations of hyperuricemia. A variable spectrum of neurological involvement occurs predominantly in males. Females are usually asymptomatic. Carrier status cannot be confirmed by biochemical and enzymatic methods reliably. METHODS: We studied clinical, biochemical and molecular genetic characteristics of Czech families with hyperuricemia and HPRT deficiency...
February 2, 2015: Clinica Chimica Acta; International Journal of Clinical Chemistry
T N Salomenchuk, K V Semegen-Bodak, n A Slaba, G V Chngrian, M B Mysyshin, O M Slabyĭ
This study designed to elucidate dynamics of lipid metabolism and HbA(1c) level, uricemia, and renal function in 54 patients with chronic renal disease (CRD) of non-diabetic genesis treated by standard cardioprotective therapy in combination with atorvastatin. The patients were divided in two groups with glomerular filtration rate (GFR) < 60 ml/min (n = 31) and = > 60 ml/min. The former were given 20 mg atorvastatin/day. Arterial pressure (AP): systolic (SAP), diastolic (DAP), and pulse (PAP) pressure, plasma lipid profile, uricemia, HbA(1c) and GFR were measured at admission and 6 months after the onset of therapy...
2014: Klinicheskaia Meditsina
T N Solomenchuk, K V Semegen-Bodak, N A Slaba, G V Chngrian, M B Mysyshin
UNLABELLED: PURPOSE AND MATERIAL: In order to study the state of coronary arteries, and dynamics of parameters of kidney function, lipid metabolism, levels of glycated hemoglobin (HbA1c), uricemia during administration of atorvastatin in a complex of standard cardioprotective treatment, we examined 54 patients with chronic kidney disease (CKD) of nondiabetic origin. METHODS: All patients were divided in 2 groups: group I - 31 patients with glomerular filtration rate (GFR) <60 ml/min, who were additionally administered atorvastatin 20 mg/day; group II - 23 patients with glomerular filtration rate (GFR) more or equal 60 ml/min...
2014: Kardiologiia
T Iu Stakhova, A V Shcherbak, L V Kozlovskaia, M V Taranova, I M Balkarov
AIM: To identify the risk factors of kidney injuries in hypertensive patients with uric acid (UA) metabolic disorders in order to choose the optimal management tactics, by analyzing the changes in markers for endothelial dysfunction (endothelin-1 (ET-1), microalbuminuria (MAU), intima-media thickness (IMT)) and tubulointerstitial tissue lesion (beta2-microglobulin (beta2-MG, monocyte chemotactic protein-1 (MCP-1)). SUBJECTS AND METHODS: Eighty-one patients with grade 1 hypertension without associated diseases, diabetes mellitus, or metabolic syndrome were examined...
2014: Terapevticheskiĭ Arkhiv
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