THE RELATIONSHIP BETWEEN INFLAMMATION MARKERS AND MAGNESIUM/PHOSPHATE RATIO WITH ENDOTEL FUNCTION IN PERIPHERAL ARTERY DISEASE

2021 ◽  
Vol 6 (15) ◽  
pp. 80-86
Author(s):  
Serhat Çalışkan ◽  
Mehmet ATAY ◽  
Ferit BÖYÜK

Objective: In our study, it was aimed to evaluate the relationship between neutrophil/lymphocyte, monocyte/high-density lipoprotein and magnesium/phosphate ratios with endothelial functions in patients with peripheral artery disease. Methods: Sixty patients followed up with peripheral arterial disease were included in this study. Endothelial functions of the patients were evaluated by flow-mediated vasodilation test. Pearson correlation analysis was used to evaluate the relationship between magnesium/phosphate, neutrophil/lymphocyte, monocyte/high-density lipoprotein ratios with percent change in flow-mediated vasodilation. Results: 48.3% of the participants are male and 51.7% are female. The mean age of the patients were 66.85±11.08 years. The mean radial artery basal diameter was 0.24±0.02 cm in the flow-mediated vasodilatation test and after the test the mean radial artery diameter was 0.27±0.02 cm(p<0.001). In the flow-mediated dilatation test predicting endothelial functions, the percentage change in arterial diameter was positively correlated with the Magnesium/phosphate ratio (r=-0.326, p=0.011), and negatively correlated with the Neutrophil/lymphocyte ratio and monocyte/high-density lipoprotein ratio (respectively r= -0.411, p=0.001; r=-0.530, p=0.001). Conclusion: Magnesium/phosphate ratio, neutrophil/lymphocyte ratio and monocyte/high-density lipoprotein ratio can be used to predict endothelial dysfunction in patients with peripheral artery disease.

Vascular ◽  
2021 ◽  
pp. 170853812110183
Author(s):  
Arda Aybars Pala ◽  
Yusuf Salim Urcun

Objectives Triglyceride-glucose index (TyG index), which is defined as the simple and novel marker of insulin resistance, is becoming increasingly important as a promising predictive marker for atherosclerotic diseases. Chronic limb-threatening ischemia is defined as the most advanced stage of the lower extremity peripheral artery disease, whose main cause is atherosclerosis and is associated in this respect with amputation, impaired quality of life, and mortality. The main purpose of the present study was to investigate the relation between the calculated TyG index values and chronic limb-threatening ischemia development. Methods A total of 296 patients who were diagnosed with lower extremity peripheral artery disease in our outpatient clinic between October 2018 and October 2020 were included in this study retrospectively. Two groups were formed by clinically staging the patients according to Rutherford Classification. Patients who did not develop chronic limb-threatening ischemia were classified as “Group 1” ( n = 224) and those who developed were classified as “Group 2” ( n = 72). Results The mean TyG index values that were calculated in Group 2 were significantly higher than in Group 1 (9.27 ± 0.31 vs. 9.00 ± 0.34, p < 0.001). In the multivariate logistic regression analysis conducted to determine the predictors of chronic limb-threatening ischemia development, C-reactive protein (OR [Odds Ratio]: 1.220, 95% CI [confidence interval]: 1.092–1.363, p < 0.001), high-density lipoprotein cholesterol (OR: 0.775, 95% CI: 0.715–0.839, p < 0.001) and TyG index (OR: 5.796, 95% CI: 2.050–16.382, p = 0.001) were identified as independent predictors. Receiver operating characteristic analysis revealed that the cut-off value of TyG index was 9.13 (area under the curve: 0.721, p < 0.001) with 70.8% sensitivity and 65.2% specificity. The TyG index was significantly correlated with Rutherford category, high-density lipoprotein cholesterol and mean platelet volume. Conclusions Chronic limb-threatening ischemia development may be predicted with the TyG index value, which is calculated easily from routine biochemical parameters, in patients diagnosed with lower extremity peripheral artery disease.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
M.R Santos ◽  
A Pereira ◽  
F Mendonca ◽  
J.A Sousa ◽  
M Temtem ◽  
...  

Abstract Introduction Coronary atherosclerosis is an important pathophysiological mechanism in the development of coronary artery disease (CAD). While it has been proven via multiple studies that elevated levels of low-density lipoprotein (LDL) contribute to the development of atherosclerosis, high-density lipoprotein (HDL) is widely thought to have atheroprotective effects. Multiple epidemiologic studies have given the idea that high HDL levels protect against CAD, however, other trials also shown that its benefit can be paradoxical. Objective To evaluate the relationship between HDL levels and the extent of CAD (one vessel vs multivessel disease) in coronary artery patients. Materials and methods Study analyses of 1676 patients selected from GENEMACOR study population, with at least one &gt;75% coronary stenosis by angiography (median age 53.3±7.9 years, 78.6% male, median HDL 43.0±11.1 mg/dL). Population was divided according to the HDL level quartiles (1st quartile HDL &lt;35.3 mg/dL; 2nd quartile HDL 35.3–42 mg/dL; 3rd quartile HDL 42–49 mg/dL; 4th quartile HDL &gt;49 mg/dL). Population of the 1st and 4th quartiles (825 patients, median age of 53.3±7.9 years and 78.7% male) were adjudicated and prospectively followed-up by 5.0±4.8 years. χ2 and T student tests were used to analyze the demographic, laboratorial, angiographic and anthropometric characteristics of the population according to HDL level. Results 420 (50.9%) patients were included in the 1st quartile group (median age 53.2±7.9 years, 85.7% men) and 405 (49.1%) patients were included in the 4th quartile group (median age 53.4±8.0 years, 71.4% men). In our population, lower levels of HDL were associated with increased risk of multivessel coronary disease (OR 1.63, 95% CI 1.23–2.14, p 0.001). Conclusion Despite uncertainties about HDL benefit, in our population a higer level of HDL was associated with a shortest extent of coronary artery disease. We conclude that higher levels of HDL can be considered protective in coronary patients, and strategies to increase HDL levels may indeed translate in improved outcomes in CAD disease. Funding Acknowledgement Type of funding source: None


2021 ◽  
pp. 1358863X2110211
Author(s):  
Flávio Roberto Cavalleiro de Macedo Ribeiro ◽  
Carolina Heitmann Mares Azevedo Ribeiro ◽  
Thauany Martins Tavoni ◽  
Erica dos Santos Sarges ◽  
Fatima Rodrigues Freitas ◽  
...  

Introduction: Low high-density lipoprotein (HDL)-cholesterol is frequent in patients with peripheral artery disease (PAD) and also in type 2 diabetes mellitus (T2DM), the major risk factor for PAD. The transfer of cholesterol from the other lipoproteins to HDL is an important aspect of HDL metabolism and function, and may contribute to atherogenic mechanisms that lead to PAD development. Objective: The aim of this study was to investigate the status of cholesterol transfers in patients with PAD without or with T2DM. Methods: Patients with PAD ( n = 19), with PAD and T2DM (PAD + DM, n = 19), and healthy controls ( n = 20), all paired for age, gender, and BMI were studied. Transfer of both forms of cholesterol, unesterified (UC) and esterified (EC), was performed by incubating plasma with a donor nanoemulsion containing radioactive UC and EC, followed by chemical precipitation and HDL radioactive counting. Results: Low-density lipoprotein (LDL)-cholesterol and triglycerides were similar in the three groups. Compared to controls, HDL-C was lower in PAD + DM ( p < 0.05), but not in PAD. Transfer of UC was lower in PAD + DM than in PAD and controls (4.18 ± 1.17%, 5.13 ± 1.44%, 6.59 ± 1.25%, respectively, p < 0.001). EC transfer tended to be lower in PAD + DM than in controls (2.96 ± 0.60 vs 4.12 ± 0.89%, p = 0.05). Concentrations of cholesteryl ester transfer protein (CETP) and lecithin-cholesterol acyltransferase (LCAT), both involved in HDL metabolism, were not different among the three groups. Conclusion: Deficient cholesterol transfer to HDL may play a role in PAD pathogenesis. Since UC transfer to HDL was lower in PAD + DM compared to PAD alone, it is possible that defective HDL metabolism may contribute to the higher PAD incidence in patients with T2DM.Keywords


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