P6309Impaired secretion of clusterin in pericardial fluid of diabetics, a deleterious outcome for the cardiac micro-vasculature

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
P Dixit ◽  
M Anwar ◽  
J Saif ◽  
A Chamorro-Jorganes ◽  
M Dumas ◽  
...  

Abstract Background Extracellular vesicles are vital mediators of cell-to-cell communications. We previously demonstrated that in the adult heart, exosomes released in the pericardial fluid (PF) have the functional capability to induce cell survival and angiogenesis in recipient endothelial cells. It has previously been shown that PF exosomes from patients with an existing myocardial infarction (MI) contain clusterin (CLU). Remarkably, secreted CLU is cardio-protective as evidenced by enhanced arteriogenesis and reduced apoptosis in animal models of MI. We hypothesize that type 2 Diabetes Mellitus (T2DM) along with ischemic heart disease (IHD) alters PF EV content impairing its reparative angiogenic potential. Aim To investigate the role of T2DM in modulating human PF exosomal content and its vascular action. Methods and results PF samples were collected from 3 different groups of patients (N=3): 1) Ischemic heart disease (IHD) with or 2) without T2DM, and 3) non-ischaemic, non-diabetic controls operated for mitral valve repair. The impact of PF exosomes on human coronary microvascular ECs (HCMECs) was evaluated by cell based functional assays for measuring apoptosis, proliferation and angiogenesis. Interestingly, unlike PF exosomes from control patients, PF exosomes from DM patients with IHD promoted EC apoptosis and impaired angiogenesis. To investigate the effect of T2DM on PF content, we performed high throughput proteomic and metabolomic analysis of whole PF and PF EVs. We identified proteins and metabolites that were differentially expressed under T2DM condition by using the R package Limma. Employing a network approach, protein and metabolic data were integrated by using our newly developed inhouse R package Metabosignal. This networks approach revealed an interesting interaction circuit involving protein CLU. The T2DM-associated reduction of CLU level in the PF, identified from the “omics” analyses was confirmed by ELISA (n=8 patients per group). To examine the effects of DM and ischemia on CLU intracellular expression and secretion, HCMECs were exposed to high D-glucose (HG, 25 mM) and hypoxia (1%O2). In line with our PF data, HCMECs exposed to HG and hypoxia showed lower levels of both CLU mRNA and secreted CLU (ELISA). Importantly, recombinant CLU (rCLU) treatment on HCMECs rescued their angiogenic potential, induced cell proliferation and protected them from apoptosis under both HG and hypoxia conditions. In addition, silencing of endogenous levels of CLU in HCMECs impaired angiogenesis, suggesting that CLU might be an inherent component of the angiogenesis machinery in ECs. Conclusions This study suggests that DM reduces the level of secreted CLU in the PF, depriving myocardial micro-vessels of this protective and regenerative mediator. Restoring diminished CLU levels in the diabetic heart could be a possible therapeutic approach for contrasting diabetic micro-angiopathy. Acknowledgement/Funding British Heart Foundation Program Grant

Author(s):  
A. Bulgak ◽  
E. Tarasik

The purpose of our study is to assess the impact of cardiac arrhythmias, heart rhythm variability in patients with ischemic heart disease, obstructive sleep apnea and primary snoring. 65 patients at an age of 40–68 years with ischemic heart disease, obstructive sleep apnea and primary snoring were researched.Obstructive sleep apnea and primary snoring lead to an increase in the sympathetic and parasympathetic activity of the autonomic nervous system on the sinus node in patients with ischemic heart disease, obstructive sleep apnea and primary snoring.


2013 ◽  
Vol 168 (2) ◽  
pp. 1568-1569 ◽  
Author(s):  
Dimitris Tousoulis ◽  
Eirini Toli ◽  
Antigoni Miliou ◽  
Nikolaos Papageorgiou ◽  
Charalambos Antoniades ◽  
...  

Author(s):  
Otto R.F. Smith ◽  
Susanne S. Pedersen ◽  
Ron T. Van Domburg ◽  
Johan Denollet

Background Symptoms of fatigue and depression are prevalent across stages of ischemic heart disease (IHD). We examined (i) the effect of both the IHD stage and type-D personality on fatigue and depressive symptoms at 12-month follow-up, and (ii) whether the effect of type-D personality on these symptoms is moderated by IHD stage. Methods Two different samples of patients were included to represent IHD stage: 401 percutaneous coronary intervention patients (early-stage IHD) and 105 ischemic chronic heart failure patients (end-stage IHD) completed the DS14 Type-D Scale at baseline. Logistic regression analysis was used to examine the impact of IHD stage and type-D personality on fatigue and depression at follow-up. Results Disease stage was neither associated with symptoms of fatigue ( P = 0.99) nor depression ( P = 0.29) at 12 months. In contrast, type-D personality was shown to predict both symptoms of fatigue [odds ratio (OR) = 2.96; 95% confidence interval (CI): 1.92–4.58, P < 0.001] and depression (OR = 4.91; 95% CI: 3.16–7.65, P < 0.001) at follow-up; the effect of type-D personality on these symptoms was not moderated by disease stage. In multivariable analysis, type-D remained a significant predictor of symptoms of fatigue (OR = 3.14; 95% CI: 1.98–4.99, P < 0.001) and depression (OR = 5.90; 95% CI: 3.60–9.67, P < 0.001), also after controlling for symptom levels at baseline. Conclusion Type-D personality but not disease stage predicted symptoms of fatigue and depression at 12-month follow-up.


2003 ◽  
Vol 44 (5) ◽  
pp. 633-644 ◽  
Author(s):  
Atsushi Namiki ◽  
Tetsuya Kubota ◽  
Masayuki Fukazawa ◽  
Michiro Ishikawa ◽  
Masao Moroi ◽  
...  

2018 ◽  
Vol 17 (4) ◽  
pp. 30-37
Author(s):  
A. A. Gerasimov

1 million 824 thousand people died in the Russian Federation in 2017, including 457 thousand from ischemic heart disease (IHD). IHD caused more than a quarter of deaths in Russia. Goal. The article analyzes the impact of implementation of clinical guidelines in cardiology in medical practice in the United States and the Russian Federation on the dynamics of mortality from ischemic heart disease and its outcomes in different age groups. Results. The results showed that the implementation of clinical guidelines (CG) increased the rate of mortality reduction from coronary heart diseases in Russia and the United States, which may indicate a positive impact CG on the quality of medical care. Conclusions. A higher level of mortality from coronary heart disease in Russia compared to the United States may be due to less commitment of doctors to the principles of therapy and diagnosis of various forms of coronary heart disease, set out in clinical guidelines.


2021 ◽  
Vol 28 (Supplement_1) ◽  
Author(s):  
N Swiatoniowska-Lonc ◽  
E Jaciow ◽  
J Polanski ◽  
B Jankowska-Polanska

Abstract Funding Acknowledgements Type of funding sources: None. Background. Falls among the elderly are a major cause of injury, significant disability and premature death. Hypotension is a potential risk factor for falls in older adults, especially patients with hypertension (HTN) taking antihypertensive drugs. Furthermore, the cardiovascular benefit of treatment of hypertension in older patients is clear, findings from observational studies have raised concerns that antihypertensive therapies in the elderly might also induce adverse effects, including injurious falls.  In spite of the large number of issues related to this topic, the analysis of the causes of falls is insufficient. The aim of the study was to assess the frequency of falls and the impact of selected variables on the occurrence of risk of falls among patients with HTN. Material and methods. 100 patients, including 55 women, with HTN (mean age 69.4 ± 3.29 years) were enrolled into the study. The Tinetti test was used to assess the risk of falls. Sociodemographic and clinical data were obtained from the hospital register. Results. 89% of patients had a high risk of falls and 11% were prone to falls. The average number of falls during the last year in the study group was 1.86 ± 2.82 and in 30% of cases the fall was the cause of hospitalization. Single-factor analysis of the influence of selected variables on the risk of falls showed that higher values of SBP (-0.27; p = 0.007), DBP (-0.279; p = 0.005) and younger age of patients decrease the risk of falls (-0.273; p = 0.006). The linear regression model showed that independent predictors increasing the risk of falling are: use of diuretics (β=4.192; p &lt; 0.001), co-occurrence of ischemic heart disease (β=4.669; p = 0. 007) and co-occurrence of heart failure (β=3.494; p = 0.016), and predictors reducing the risk of falling patients with hypertension are: the use of beta-blockers (β= -4.033; p = 0.013) and higher DBP value (β= -0.123; p = 0.016). Conclusions. Patients with HTN have a high risk of falling. Independent determinants increasing the risk of falling patients with HTN are the use of diuretics and the co-occurrence of ischemic heart disease or heart failure, while beta-blockers and a higher DBP value are factors reducing the risk of falling. Fall risk assessment and implementation of fall prevention should be carried out in everyday practice.


Author(s):  
Cyril James ◽  
Shreya Ohri ◽  
Snezhana Tisheva ◽  
Dilyana Yakova ◽  
Martin Hristov ◽  
...  

Objective: The epidemic of obesity and obesity related morbidities is an important public health challenge, and is paralleled by growing incidence of metabolic syndrome which acts as a strong and significant risk factor for Ischemic heart disease and other atherosclerotic vascular events. The psychological impact of these chronic conditions can be very disturbing. In practical terms the functional effect of an illness and its therapy upon a patient, as perceived by the patient - could be estimated by introducing the quantitative approach of - Health Related Quality of Life (HRQoL). Aim: The aim of this study is to evaluate the impact of obesity on quality of life of patients with ischemic heart disease. Design and method: Questionnaire based cross sectional study was conducted among patients with established Coronary Artery Disease admitted in the Department of Cardiology in the University Hospital. 520 patients who were admitted in the Cardiology Department between 1st of January 2012 and 30th June 2014 with acute coronary syndrome or coronary angiographic or Electrocardiography evidence of ischemic heart disease were included in the study, stratified by age, sex and BMI ( normal weight 18.5 - 24.9, overweight 25 - 29.9, obese 30 and above). EuroQol - 5D (EQ-5D) was administered in the patients during their hospital stay. EQ-5D comprises 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and extreme problems. The height, weight and basic laboratory parameters were recorded. Results: Mean age of the participants was 65.1± 10.6 years. Male female ratio was 0.76. The distribution of patients in BMI groups was 36.8%/ 24.4%/ 38.8%. Statistically significant differences between BMI groups were seen in Usual activity (p=0.005) and self-care (p=0.044) dimensions of EQ-5D-5L with poorest outcome in the obese. We have found significantly positive correlation between BMI and usual activities (R=0.234, p=0.001) and between age and anxiety (R= 0.366 p=0.045). Mean BMI of patients with extreme problems with extreme problems with usual activities is significantly greater than those with lower intensity of problems. Patients with extreme anxiety tend to have higher mean age. Conclusion: Our study revealed that Ischemic heart disease patients with obesity had impaired QoL in terms of health, mobility, usual activity, discomfort and anxiety. Hence non-obese ischemic heart disease patients had a better sense of overall wellbeing.


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