Clinical and laboratory markers of calcifying atherosclerosis

2021 ◽  
Vol 1 (30) ◽  
pp. 43-47
Author(s):  
L. B. Drygina ◽  
V. N. Khirmanov

Despite the achievements in the detection of calcium deposits in the walls of blood vessels, there is practically no data on the relationship of calcification of the coronary arteries with clinical and laboratory indicators of calcification in the blood, and the mechanisms of this process have not been fully established. The aim of the work was to establish the relationship between the severity of vascular calcification and clinical and laboratory markers of vascular calcification to improve the effectiveness of the diagnosis of diseases of the cardiovascular system and optimize therapy. The data obtained during the study indicate a high prevalence of vascular calcification in patients with atherosclerosis. Estimates of the calcium index and traditional risk factors are not always sufficient to predict cardiovascular complications. Thus, the identification of specific laboratory markers of calcification and predisposition to calcinosis is very relevant at the present time. Studies have shown that atherosclerosis with vascular calcification is combined with the development of chronic systemic inflammation and inflammation of the vascular wall. At the same time, there are elevated levels of C-reactive protein, endothelin, homocysteine, lipid metabolism indicators, and reduced levels of fetuin-A in the blood, which allows us to recommend these laboratory indicators to prevent cardiovascular complications.

2021 ◽  
Vol 73 (1) ◽  
Author(s):  
Gökhan Ceyhun

Abstract Background In this study considering the relationship between serum endocan and CHA2DS2-VASc score, we assumed that endocan level could be a new biomarker for stroke risk in patients with paroxysmal atrial fibrillation (PAF). It was examined that endocan could be an alternative to determine the risk of stroke and anticoagulation strategy in patients with PAF. The CHA2DS2-VASc scores were calculated for 192 patients with PAF, and their serum endocan levels were measured. The patients were divided into two groups as those with low to moderate (0-1) and those with high (≥ 2) CHA2DS2-VASc scores, and the endocan levels were compared between these two groups. Results The serum endocan level was significantly higher in the high CHA2DS2-VASc score group (p < 0.001). In the multivariate logistic regression analysis, endocan, C-reactive protein, and low-density lipoprotein were found to be independent determinants of the CHA2DS2-VASc score. The predictive value of endocan was analyzed using the ROC curve analysis, which revealed that endocan predicted a high stroke risk (CHA2DS2-VASc ≥ 2) at 82.5% sensitivity and 71.2% specificity at the cutoff value of 1.342. Conclusion This study indicates that endocan is significantly associated with CHA2DS2-VASc score. We demonstrated that endocan could be a new biomarker for the prediction of a high stroke risk among patients diagnosed with PAF.


Author(s):  
Елизавета Александровна Молчанова ◽  
Петр Вячеславович Лужнов

В работе приведены понятия жесткости, эластичности и тонуса сосудов, а также же их взаимосвязь с общим состоянием сосудистой стенки. Описан индекс, объединяющий влияние вышеперечисленных факторов на состояние сосудистой системы и дающий представление о возрасте сосудов пациента, а также показана связь этого индекса с возрастом человека. Представлен обзор способов определения возраста сосудов с помощью контурного анализа пульсовой волны. Среди предложенных способов был выделен подход на основе контурного анализа сигнала пульсовой волны, а также ее второй производной. В данном исследовании проводилась разработка алгоритма расчета показателя возраста сосудов (VA), базирующаяся на анализе сигнала и его второй производной. При этом особое внимание уделялось физической интерпретации параметров, входящих в состав расчетной формулы. С помощью представленного алгоритма в группе из трех испытуемых был определен сосудистый возраст. Из анализа полученных результатов было выявлено влияние физиологических факторов на значение возраста сосудов. Предложены методики, позволяющие исключить влияние этих факторов на значения показателя VA и тем самым получить более точные результаты. Также представлены стратегии дальнейшего развития исследований в этом направлении In The paper presents the concepts of rigidity, elasticity and tone of blood vessels, as well as their relationship with the general state of the vascular wall. An index is described that combines the influence of the above factors on the state of the vascular system and gives an idea of the age of the patient's vessels, and also shows the relationship of this index with the age of a person. An overview of the methods for determining the age of blood vessels using the contour analysis of the pulse wave is presented. Among the proposed methods, an approach based on the contour analysis of the pulse wave signal, as well as its second derivative, was singled out. In this study, an algorithm was developed for calculating the indicator of vascular age (VA), based on the analysis of the signal and its second derivative. In this case, special attention was paid to the physical interpretation of the parameters included in the calculation formula. Using the presented algorithm, vascular age was determined in a group of three subjects. From the analysis of the results obtained, the influence of physiological factors on the value of the age of the vessels was revealed. Methods are proposed that allow to exclude the influence of these factors on the values of the VA indicator and thereby obtain more accurate results. Also presented are strategies for the further development of research in this direction


2022 ◽  
Author(s):  
Salman Razvi ◽  
Avais Jabbar ◽  
Arjola Bano ◽  
Lorna Ingoe ◽  
Peter Carey ◽  
...  

Objectives: To study the relationship between serum free T3 (FT3), C-reactive protein (CRP), and all-cause mortality in patients with acute myocardial infarction (AMI). Design: Prospective multicentre longitudinal cohort study. Methods: Between December 2014 and December 2016, thyroid function and CRP were analysed in AMI (both ST- and non-ST-elevation) patients from the ThyrAMI-1 study. The relationship of FT3 and CRP at baseline with all-cause mortality up to June 2020 was assessed. Mediation analysis was performed to evaluate if CRP mediated the relationship between FT3 and mortality. Results: In 1919 AMI patients [29.2% women, mean (SD) age 64.2 (12.1) years and 48.7% STEMI] followed over a median (inter-quartile range) period of 51 (46 to 58) months, there were 277 (14.4%) deaths. Overall, lower serum FT3 and higher CRP levels were associated with higher risk of mortality. When divided into tertiles based on levels of FT3 and CRP, the group with the lowest FT3 and highest CRP levels had 2.5-fold increase in mortality risk [adjusted hazard ratio (95% confidence interval) of 2.48 (1.82 to 3.16)] compared to the group with the highest FT3 and lowest CRP values. CRP mediated 9.8% (95% confidence interval 6.1 to 15.0%) of the relationship between FT3 and mortality. Conclusions: In AMI patients, lower serum FT3 levels on admission are associated with a higher mortality risk, which is partly mediated by inflammation. Adequately designed trials to explore potential benefits of T3 in AMI patients are required.


2019 ◽  
Vol 20 (12) ◽  
pp. 3032 ◽  
Author(s):  
Verena L. Banszerus ◽  
Valentin M. Vetter ◽  
Bastian Salewsky ◽  
Maximilian König ◽  
Ilja Demuth

Telomere length has been accepted widely as a biomarker of aging. Recently, a novel candidate biomarker has been suggested to predict an individual’s chronological age with high accuracy: The epigenetic clock is based on the weighted DNA methylation (DNAm) fraction of a number of cytosine-phosphate-guanine sites (CpGs) selected by penalized regression analysis. Here, an established methylation-sensitive single nucleotide primer extension method was adapted, to estimate the epigenetic age of the 1005 participants of the LipidCardio Study, a patient cohort characterised by high prevalence of cardiovascular disease, based on a seven CpGs epigenetic clock. Furthermore, we measured relative leukocyte telomere length (rLTL) to assess the relationship between the established and the promising new measure of biological age. Both rLTL (0.79 ± 0.14) and DNAm age (69.67 ± 7.27 years) were available for 773 subjects (31.6% female; mean chronological age= 69.68 ± 11.01 years; mean DNAm age acceleration = −0.01 ± 7.83 years). While we detected a significant correlation between chronological age and DNAm age (n = 779, R = 0.69), we found neither evidence of an association between rLTL and the DNAm age (β = 3.00, p = 0.18) nor rLTL and the DNAm age acceleration (β = 2.76, p = 0.22) in the studied cohort, suggesting that DNAm age and rLTL measure different aspects of biological age.


2019 ◽  
Vol 1 (3) ◽  
Author(s):  
Sang Hyoung Park ◽  
Badr Al-Bawardy ◽  
Satimai Aniwan ◽  
Sunanda V Kane ◽  
Nayantara Coelho-Prabhu ◽  
...  

Abstract Background and Aims We aimed to evaluate the relationship of serum adalimumab trough levels (ATL) with disease activity of inflammatory bowel disease (IBD) patients in a large, well-characterized referral center-based cohort. Methods We compared serum ATL between those with clinical, biochemical, or endoscopic/radiologic disease activity and those without. Results A total of 236 patients with IBD were included. Higher cutoff levels were associated with endoscopic and/or radiologic responses (cutoff value: 5.3 mcg/mL, P = 0.003) compared with improvement in C-reactive protein (cutoff value: 4.3 mcg/mL, P = 0.031). Conclusions Higher cutoff ATL was associated with endoscopic and/or radiologic response.


2008 ◽  
Vol 18 (3) ◽  
pp. 211-219 ◽  
Author(s):  
Yasuaki Saijo ◽  
Megumi Utsugi ◽  
Eiji Yoshioka ◽  
Naoko Horikawa ◽  
Tetsuro Sato ◽  
...  

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
J. L. Clua-Espuny ◽  
M. A. González-Henares ◽  
M. L. L. Queralt-Tomas ◽  
W. Campo-Tamayo ◽  
E. Muria-Subirats ◽  
...  

Aims/Introduction. Determining the prevalence of diabetes and its cardiovascular complications and all-cause mortality in older chronic complex patients. Materials and Methods. We carried out a multicenter retrospective study and included a randomized sample of 932 CCP people. We assessed the prevalence of diabetes according to World Health Organization criteria. Data included demographics and functional, comorbidity, cognitive, and social assessment. Results. The prevalence of diabetes was 53% and average age 81.16±8.93 years. There were no significant differences in the survival of CCP patients with or without DM, with or without ischaemic cardiopathy, and with or without peripheral vascular disease. The prognostic factors of all-cause mortality in patients with DM were age ≥ 80 years [HR 1.47, 95% CI 1.02–2.13, p  0.038], presence of heart failure [HR 1.73, 95% CI 1.25–2.38, p  0.001], Charlson score [HR 1.20, 95% CI 1.06–1.36, p  0.003], presence of cognitive impairment [HR 1.73, 95% CI 1.24–2.40, p  0.001], and no treatment with statins [HR 1.49, 95% CI 1.08–2.04, p  0.038]. Conclusions. We found high prevalence of DM among CCP patients and the relative importance of traditional risk factors seemed to wane with advancing age. Recommendations may include relaxing treatment goals, providing family/patient education, and enhanced communication strategies.


2015 ◽  
Vol 39 (4) ◽  
Author(s):  
Dalibor Novotny ◽  
David Karasek ◽  
Helena Vaverkova ◽  
Margita Bartkova ◽  
Veronika Kubickova

AbstractThe study aimed to evaluate the relationship of paraoxonase 2 (Two hundred and sixty-four individuals were included in the study. The laboratory parameters were assessed by routine kit methods, while methods based on polymerase chain reaction were used for311 SS homozygous individuals had significantly lower systolic blood pressure values (SBP, p<0.01), C-reactive protein, and apolipoprotein A1 levels (p<0.05), as compared with C allele carriers. The analysis revealed no differences in the levels of endothelial/hemostatic markers, except for the increased adhesion molecule [soluble vascular cell adhesion molecule 1 (sVCAM-1)] concentrations in 311S/E2 carriers (p<0.05).The presence of the


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