scholarly journals Corrigendum to “Circulating Levels of Sirtuin 4, a Potential Marker of Oxidative Metabolism, Related to Coronary Artery Disease in Obese Patients Suffering from NAFLD, with Normal or Slightly Increased Liver Enzymes”

2018 ◽  
Vol 2018 ◽  
pp. 1-1 ◽  
Author(s):  
Giovanni Tarantino ◽  
Carmine Finelli ◽  
Franco Scopacasa ◽  
Fabrizio Pasanisi ◽  
Franco Contaldo ◽  
...  
2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Giovanni Tarantino ◽  
Carmine Finelli ◽  
Franco Scopacasa ◽  
Fabrizio Pasanisi ◽  
Franco Contaldo ◽  
...  

The present study shows low circulating levels of SIRT4 in obese patients with nonalcoholic fatty liver disease mirroring its reduced mitochondrial expression in an attempt to increase the fat oxidative capacity and then the mitochondrial function in liver and in muscle. SIRT4 modulates the metabolism of free fatty acids reducing their high circulating levels but, unfortunately, increasing ROS production. Great concentration of free fatty acids, released by adipose tissue, coupled with oxidative stress, directly results in endothelial dysfunction, early atherosclerosis, and coronary artery disease risk factor.


2021 ◽  
Vol 28 (Supplement_1) ◽  
Author(s):  
KA Krychtiuk ◽  
M Lenz ◽  
P Hohensinner ◽  
K Distelmaier ◽  
L Schrutka ◽  
...  

Abstract Funding Acknowledgements Type of funding sources: Public grant(s) – National budget only. Main funding source(s): FWF Background and aims Proprotein convertase subtilisin/kexin type-9 (PCSK9) is an enzyme promoting the degradation of low-density lipoprotein receptors (LDL-R) in hepatocytes. Inhibition of PCSK9 has emerged as a novel target for lipid-lowering therapy. Monocytes are crucially involved in the pathogenesis of atherosclerosis and can be divided into three subsets. The aim of this study was to examine whether circulating levels of PCSK9 are associated with monocyte subsets. Methods We included 69 patients with stable coronary artery disease. PCSK9 levels were measured and monocyte subsets were assessed by flow cytometry and divided into classical monocytes (CD14++CD16-; CM), intermediate monocytes (CD14++CD16+; IM) and non-classical monocytes (CD14 + CD16++; NCM). Results Mean age was 64 years and 80% of patients were male. Patients on statin treatment (n = 55) showed higher PCSK9-levels (245.4 (206.0-305.5) ng/mL) as opposed to those without statin treatment (186.1 (162.3-275.4) ng/mL; p = 0.05). In patients on statin treatment, CM correlated with circulating PCSK9 levels (R = 0.29; p = 0.04), while NCM showed an inverse correlation with PCSK9 levels (R=-0.33; p = 0.02). Patients with PCSK9 levels above the median showed a significantly higher proportion of CM as compared to patients with PCSK-9 below the median (83.5 IQR 79.2-86.7 vs. 80.4, IQR 76.5-85.2%; p = 0.05). Conversely, PCSK9 levels >median were associated with a significantly lower proportion of NCM as compared to those with PCSK9 <median (10.2, IQR 7.3-14.6 vs. 14.3, IQR 10.9-18.7%; p = 0.02). In contrast, IM showed no association with PCSK-9 levels. Conclusions We hereby provide a novel link between PCSK9 regulation, innate immunity and atherosclerotic disease in statin-treated patients.


Author(s):  
Elifcan Gezer ◽  
Mehtap Cevik ◽  
Cansu Selcan Akdeniz ◽  
Ismail Polat Canbolat ◽  
Selen Yurdakul ◽  
...  

Objective: Coronary artery disease (CAD) is the one of the leading cause of morbidity and mortality worldwide and statins are frequently prescribed in the treatment of CAD to help lower blood cholesterol levels. Since the main enzyme involved in the metabolism of statins is CYP3A4, we aimed to investigate the effect of CYP3A4 * 1B genotypes on plasma lipid profile in Turkish cardiovascular disease subject with and without obesity taking statin. Materials and Methods: The study group consisted of 85 cardiovascular disease patients who were prescribed statins and had routine biochemical analysis data. Polymerase chain reaction followed by restriction fragment length polymorphism (PCR-RFLP) assay were performed for genotyping of CYP3A4 *1B (rs2740574) polymorphism. Results: Genotype distribution of CYP3A4 *1B polymorphism was found for homozygous wild (AA) and homozygous polymorphic (GG) genotypes as 94.1% and 5.9% respectively. We did not detect patients with heterozygous genotype in our study group. We found that the mean LDL-c, TG and TC levels were higher in patients with CYP3A4 *1B GG compared to AA genotype. The frequency of CYP3A4 *1B GG genotype frequency (9.5%) was detected higher in the obese patients compared to the non-obese patients (7.7%) (χ2=0.037, p=0.85). Conclusions: Our results demonstrate that CYP3A4 *1B homozygous polymorphic genotype distribution tend to be higher in obese patients compared to non- obese patients with cardiovascular disease which may point *1B allele to have a slight effect on serum lipids during statin therapy. Additional studies with higher samples are needed for evaluating the role of CYP3A4 *1B on lipids in patients under statin therapy.


Cytokine ◽  
2015 ◽  
Vol 72 (1) ◽  
pp. 102-104 ◽  
Author(s):  
Kimon Stamatelopoulos ◽  
Stylianos Georgiou ◽  
Ioannis Kanakakis ◽  
Christos Papamichael ◽  
Nikolaos Oikonomidis ◽  
...  

2021 ◽  
Vol 11 (6) ◽  
pp. 143-154
Author(s):  
N. Tofan ◽  
S. Tykhonova ◽  
V. Iablonska ◽  
O. Khyzhnyak

Object: to identify factors that limit the effectiveness of pharmacotherapy of hypertension (HT) with comorbid coronary artery disease (CAD) in elderly obese patients by determining laboratory and spectroscopy features related to inflammation. Material and methods: 60 patients (68.2 ± 5.9 y.o.) were observed and treated in Internal Medicine Department of University Clinic of Odessa National Medical University. Patients were divided into 2 groups. The 1st group included patients (n = 30) with body mass index (BMI) ≤25 kg/m2, HT and co-morbid CAD; the 2nd group (n = 30) - patients with BMI≥30 kg/m2, HT and with co-morbid CAD. For each patient’s group antihypertensive combination of Lisinopril and Bisoprolol was prescribed. The Laser correlation spectroscopy (LCS) was a special method for investigation. Results: before pharmacotherapy (PT) in both groups according to LCS 11-150 nm particles are prevailing. But in obese patients 75th percentile of 31-70 nm particles exceeds that one in non-obese group (56.7% vs 30.5%). During PT systolic blood pressure (SBP) value normalized in the patients of 1st group (without obesity), while in the obese patients (2nd group) SBP remained above target level. Creatinine level increased in patients of  1st group (without obesity) by 16.5 μmol / L (p <0.05) with a decrease in GFR by 17.1 ml/min/1.73 m2 (P <0.05). LCS data during PT show increase of 11-30 nm and decrease of 75-150 nm particles in non-obese patients, while in obese patients 71-150 nm particles are prevailing and 150 nm particles have appeared (p<0.05). Conclusions: 1. In elderly hypertensive patients with concomitant CAD, obesity is a factor limiting the effectiveness of complex antihypertensive therapy. 2. An increase of proportion of allergic-directed and appearance of autoimmune-directed homeostatic shifts in serum according to LCS are associated with a decrease of antihypertensive therapy efficacy in elderly hypertensive patients with CAD and obesity.  3. In hypertensive non-obese patients with CAD under the influence of complex antihypertensive therapy deteriorating of renal function is observed while in obesity renal function is not changed. 4. Homeostatic changes revealed in the second group by LCS values probably reflect manifestation of  low grade inflammatory process caused by excessive activity of adipose tissue.


2018 ◽  
Vol 118 (09) ◽  
pp. 1517-1527 ◽  
Author(s):  
Bashar Hannawi ◽  
Yousef Hannawi ◽  
Neal Kleiman

AbstractPlatelets play an essential role in the pathophysiology of atherothrombosis. Reticulated platelets (RPs) are the youngest platelet population in the circulation; their presence is an indicator of platelet turnover. Circulating levels of RPs are increased in patients with coronary artery disease and stroke. Preliminary indications are that the proportion of circulating RP is associated with the likelihood of ischaemic events such as acute coronary syndrome and stroke. Plausible mechanisms include: (1) increased participation of these platelets in thrombosis due to messenger ribonucleic acid that may be translated to active proteins, (2) lack of exposure to anti-platelet drugs since they are newly released from the bone marrow or (3) their presence is a non-specific marker of inflammation. In this state-of-the-art review, we discuss the implication of RP in coronary artery disease and in hypo-responsiveness to the most commonly used anti-platelet drugs.


Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Tadateru Iwayama ◽  
Joji Nitobe ◽  
Mitsunori Ishino ◽  
Harutoshi Tamura ◽  
Tetsurou Shishido ◽  
...  

Objective: An increment of abdominal visceral fat has been reported to be a coronary risk factor associated with metabolic syndrome. However, adipose tissue surrounding heart has not been fully determined as coronary risk factors. Accurate volumetric measurement of epicardial fat can be easily obtained by MDCT. We examined the relationship between epicardial fat volume and clinical parameters in patients with coronary artery disease (CAD). Method: We evaluated epicardial fat volume by 64 detector row CT scanner in CAD patients (obese, 13; non-obese, 11 patients) who underwent elective coronary artery bypass graft surgery and in non-CAD patients who showed normal coronary arteries on angiography (obese, 3; non-obese, 11 patients). Epicardial fat volume was obtained as the sum of fat areas on short axis images. Obese patients were defined as over 25 in body mass index (BMI). Result: Epicardial fat volume was significantly higher in patients with CAD than in those without CAD (40.6 ± 14.7 ml vs. 20.0 ± 14.7 ml, p < 0.05). Epicardial fat volume was not correlated to following coronary risk factors such as HbA1c, fasting plasma glucose, lipid and blood pressure except for BMI. Although there was no difference epicardial fat volume between in obese patients with CAD and in those without CAD (48.3 ± 27.9 ml vs. 41.2 ± 11.0 ml, NS), it was significantly higher in non-obese patients with CAD than in those without CAD (32.1 ± 9.2 ml vs. 14.2 ± 9.2 ml, p < 0.05). Conclusions: The quantity of epicardial fat using MDCT is related with the presence of CAD. Especially in non-obese patients, epicardial fat may affect directly progression of CAD independent of pathophysiological process of metabolic syndrome.


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