Physical activity, vasomotor endothelial function, and arterial stiffness

Aim. To study the prevalence of selected parameters of subclinical atherosclerosis and their association with muscle function and muscle volume in patients with different levels of cardiovascular risk (CVR). Material and methods. The study included 20 patients (11 men and 9 women; mean age 54,5±8,5 years) with chronic coronary heart disease (CCHD; mean duration 6,4±2,3 years) in the main group (MG), as well as 20 CCHD-free people in the control group (CG). Arterial stiffness was assessed by pulse wave velocity (PWV) and calculated carotid-femoral index (CFI). Endothelial function was assessed by endothelium-dependent vasodilatation (EDVD) in the reactive hyperemia (RH) test. Common carotid artery (CCA) ultrasound was performed in order to assess intima-media thickness (IMT) of carotid arteries. All participants underwent veloergometry (VEM); exercise capacity (EC) was measured by calculated metabolic equivalents (MET). Muscle tissue volume was assessed using a bioelectrical impedance analyser. The percentage of active muscle mass (%AMM) and fat-free muscle mass (%FFM), out of the total body mass, was calculated. Results. Increased CFI values >12 m/s, as a marker of adverse prognosis, were observed in 20% CCHD patients and in 10% of controls (z=0,17; p=0,87). Vasomotor endothelial dysfunction (EDVD <10%) was registered in 65% and 50%, respectively (z=0,74; p=0,46), while increased IMT values >0,9 mm were observed in 55% and 15%, respectively (z=2,3; p=0,02). Most patients with pathologically increased arterial stiffness and vasomotor endothelial dysfunction had low EC. In CCHD patients with low EC, CFI significantly correlated with %AMM and %FFM (r=-0,32; p<0,05; and r=-0,36; p<0,05, respectively). EDVD significantly correlated with both %AMM and %FFM (r=0,47; p<0,05; and r=0,5; p<0,05, respectively). There was a significant correlation between CFI and EDVD (r=-0,3; p<0,05). In CG participants with low EC, EDVD correlated with %AMM and %FFM (r=0723; p<0,05 and r=0,7; p<0,05, respectively). In both groups, %AMM and %FFM correlated with MET (r=0,49; p<0,05 and r=0,55; p<0,05, respectively; r=0,34; p<0,05 and r=0,31; p<0,05, respectively). Conclusion. EDVD and PWV reflect the lower PA levels and functional disadaptation of CCHD patients, which can result in a faster progression of atherosclerosis.

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Endothelial Function and Arterial Stiffness Should Be Measured to Comprehensively Assess Obstructive Sleep Apnea in Clinical Practice

Frontiers in Cardiovascular Medicine ◽

10.3389/fcvm.2021.716916 ◽

2021 ◽

Vol 8 ◽

Author(s):

Jinmei Luo ◽

Xiaona Wang ◽

Zijian Guo ◽

Yi Xiao ◽

Wenhao Cao ◽

...

Keyword(s):

Obstructive Sleep Apnea ◽

Sleep Apnea ◽

Arterial Stiffness ◽

Endothelial Function ◽

Augmentation Index ◽

Reactive Hyperemia ◽

Control Group ◽

Apnea Hypopnea Index ◽

Obstructive Sleep ◽

Tnf Α

Objective: An effective clinical tool to assess endothelial function and arterial stiffness in patients with obstructive sleep apnea (OSA) is lacking. This study evaluated the clinical significance of subclinical markers for OSA management in males without serious complications.Patients/Methods: Males without serious complications were consecutively recruited. Clinical data, biomarker tests, reactive hyperemia index (RHI), and augmentation index at 75 beats/min (AIx75) measured by peripheral arterial tonometry were collected. An apnea hypopnea index (AHI) cutoff of ≥15 events/h divided the patients into two groups.Results: Of the 75 subjects, 42 had an AHI ≥15 events/h. Patients with an AHI ≥15 events/h had higher high-sensitivity C-reactive protein, tumor necrosis factor-alpha (TNF-α), vascular endothelial growth factor, and AIx75 values than the control group but no statistical difference in RHI was observed. After controlling for confounders, TNF-α was negatively correlated with the average oxygen saturation (r = −0.258, P = 0.043). RHI was correlated with the rapid eye movement (REM) stage percentage (r = 0.306, P = 0.016) but not with AHI (P > 0.05). AIx75 was positively correlated with the arousal index (r = 0.289, P = 0.023) but not with AHI (r = 0.248, P = 0.052).Conclusions: In males with OSA without severe complications, TNF-α and AIx75 are independently related to OSA. The role of RHI in OSA management requires further elucidation. These markers combined can comprehensively evaluate OSA patients to provide more evidence for the primary prevention of coronary heart disease and treatment response assessment.

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Endothelial dysfunction is an independent factor responsible for vasospastic angina

Clinical Science ◽

10.1042/cs1010707 ◽

2001 ◽

Vol 101 (6) ◽

pp. 707-713 ◽

Cited By ~ 17

Author(s):

Hiroki TERAGAWA ◽

Masaya KATO ◽

Junichi KUROKAWA ◽

Togo YAMAGATA ◽

Hideo MATSUURA ◽

...

Keyword(s):

Endothelial Dysfunction ◽

Endothelial Function ◽

Brachial Artery ◽

Coronary Stenosis ◽

Intima Media Thickness ◽

Control Group ◽

Test Results ◽

Independent Factor ◽

Atherosclerotic Changes ◽

Significant Coronary Stenosis

In order to evaluate peripheral endothelial function in patients with vasospastic angina (VSA), we measured flow-mediated dilation (FMD) of the brachial artery in patients with VSA and compared it with FMD in patients without VSA. Endothelial dysfunction is considered one of the mechanisms underlying VSA. However, its exact role remains to be clarified. The study included 30 patients with positive spasm-provocational test results without evidence of significant coronary stenosis (VSA group) and 30 patients with negative spasm-provocational test results without evidence of significant coronary stenosis (control group). In each patient, brachial artery diameter responses to hyperemic flow and glyceryl trinitrate spray were measured using high-resolution ultrasound. The carotid intima-media thickness was also measured as a marker of systemic atherosclerosis. FMD was lower in the VSA group (4.8±0.5%) compared with the control group (9.4±0.7%, P < 0.0001). In the VSA group, FMD was not affected by coronary risk factors or the presence of atherosclerotic changes on coronary angiography. Glyceryl trinitrate-induced dilation did not differ between the two groups. The intima-media thickness was comparable between the VSA (0.85±0.04mm) and control groups (0.81±0.05mm). These findings indicated that peripheral endothelial function is impaired only in the VSA group, whereas the atherosclerotic changes were similar in the two groups. We conclude that endothelial dysfunction may be an independent factor responsible for the development of VSA.

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Impaired endothelial function irrespective of systemic inflammation or atherosclerosis in mastoscytosis

10.22541/au.160803105.55525226/v1 ◽

2020 ◽

Author(s):

Nida Oztop ◽

Pelin Karaca Özer ◽

semra demir ◽

Sengul Beyaz ◽

Tarık Tiryaki ◽

...

Keyword(s):

Endothelial Dysfunction ◽

Endothelial Function ◽

Systemic Inflammation ◽

Subclinical Atherosclerosis ◽

Elevated Serum ◽

Intima Media Thickness ◽

Carotid Intima Media Thickness ◽

Necrosis Factor Alpha ◽

Endothelin 1 ◽

Tnf Α

Background: Knowledge on endothelial dysfunction and its relation to atherosclerosis in mastocytosis is limited. Aim: To investigate the endothelial function in mastocytosis by flow mediated dilatation (FMD) and biomarkers related to vascular endothelia, the presence of subclinical atherosclerosis by carotid intima media thickness (CIMT). Method: Forty-nine patients with mastocytosis and 25 healthy controls (HCs) were included. FMD and CIMT during transthoracic echocardiography, biomarkers including endocan, endothelin-1 (ET-1), vascular endothelial growth factor (VEGF) were measured in sera of participants. Tumor necrosis factor-alpha (TNF-α), interleukine-6 (IL-6) and high sensitive c-reactive protein (hsCRP) were determined as inflammatory biomarkers. Result: The mean FMD% was lower in the patients than HCs (11.26±5.85% vs 17.84±5.27% p<0.001) and was the lowest in the advSM and SSM group among the patients (p=0.03). The median value of VEGF was significantly higher in patients than HCs. [73.30 pg/mL; min-max (32.46-295.29) pg/mL vs (46.64 pg/mL; min-max 11.09-99.86 pg/mL; p:0.001] and it was the highest in the advSM and SSM group (p:0.01). FMD was inversely correlated with endocan (r:-.390, p:0.006), ET-1 (r:-.363, p:0.01) and VEGF (r:-.402, p:0.004) but there were no correlations between FMD and TNF-α, IL-6, and hsCRP. No differences in CIMT values between patients and HCs and no correlation between CIMT and the biomarkers were observed. Conclusion: Endothelial dysfunction in mastocytosis becomes evident with decreased FMD and elevated serum VEGF, in the absence of atherosclerosis or systemic inflammation and is related to disease severity. Keywords: CIMT, Endocan, Endothelial function, Endothelin-1, FMD, VEGF

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Long-term indapamide retard therapy in adolescents with Stage I arterial hypertension

CARDIOVASCULAR THERAPY AND PREVENTION ◽

10.15829/1728-8800-2011-2-6-12 ◽

2011 ◽

Vol 10 (2) ◽

pp. 6-12

Author(s):

I. V. Logacheva ◽

E. A. Gunicheva

Keyword(s):

Endothelial Dysfunction ◽

Arterial Hypertension ◽

Reactive Hyperemia ◽

Intima Media Thickness ◽

Term Treatment ◽

Stage I ◽

Control Group ◽

Large Artery ◽

Long Term Treatment

Aim. To study the dynamics of office blood pressure (BP) levels, autonomic balance, endothelial dysfunction, and vascular remodelling in adolescents with Stage I arterial hypertension (AH), treated with indapamide retard (IR). Material and methods. In total, the study included 41 adolescent boys, aged 16-18 years, with Stage I AH (main group, MG), and 27 healthy adolescents (control group, CG). The MG participants received, IR (1,5 mg/day) for 6 months. At baseline and in the end of the study, all participants underwent office BP measurement, echocardiography, veloergometry, and the assessment of heart rate variability (HRV), endothelial dysfunction (reactive hyperemia test, endotelin-1 levels), microalbuminuria (MAU), and vascular parameters, such as large artery rigidity and intima-media thickness. Results. Target BP levels were achieved in all MG patients by Week 4 of the treatment, with normal BP values registered throughout the follow-up period. Indapamide therapy was associated with decreased hemodynamic cardiovascular load, normalized endothelial function, and MAU disappearance. IR monotherapy had beneficial effects on HRV, due to moderate parasympathetic stimulation. Conclusion. IR is an effective and safe medication for long-term treatment of adolescents with Stage I AH.

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Arterial elasticity, endothelial function and intracranial vascular health: A multimodal MRI study

Journal of Cerebral Blood Flow & Metabolism ◽

10.1177/0271678x20956950 ◽

2020 ◽

pp. 0271678X2095695

Author(s):

Wenjin Liu ◽

Zhensen Chen ◽

Dakota Ortega ◽

Xuebing Liu ◽

Xiaoqin Huang ◽

...

Keyword(s):

Endothelial Dysfunction ◽

Arterial Stiffness ◽

Endothelial Function ◽

Small Vessel Disease ◽

Reactive Hyperemia ◽

Brain Perfusion ◽

Cerebrovascular Diseases ◽

White Matter Hyperintensity ◽

Arterial Elasticity ◽

Vascular Health

Vascular dysfunctions, including arterial stiffness and endothelial dysfunction, are prevalent in hypertensive subjects. We aimed to study their relations to subclinical intracranial vascular health in this study. A total of 200 older hypertensive males without overt cardiovascular or cerebrovascular diseases were recruited. Arterial elasticity was measured as carotid-femoral pulse wave velocity (cfPWV) and endothelial function was measured as digital reactive hyperemia index (RHI). Cerebrovascular health was evaluated using MRI in four aspects: intracranial atherosclerosis, brain perfusion as cerebral blood flow (CBF), vascular rarefaction analyzed as visible arterial branches on angiography using a custom-developed analysis technique and small vessel disease measured as white matter hyperintensity (WMH). There was a significant negative association between cfPWV and CBF, suggesting a link between arterial stiffness and CBF decline. Higher cfPWV was also associated with presence of intracranial stenotic plaque and greater WMH volume. RHI was positively related to CBF, indicating that endothelial dysfunction was associated with reduced CBF. All the associations remained significant after adjustment for confounding variables. Arterial stiffness and endothelial dysfunction are associated with reduced brain perfusion in older hypertensive males. Arterial stiffness is also associated with global cerebral vascular injury, affecting both small and medium-to-large arteries.

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Retinal Vein Occlusion: A Form of Local Venous Thrombosis or a Result of Systemic Endothelial Dysfunction

10.21203/rs.3.rs-258297/v1 ◽

2021 ◽

Author(s):

Erdinç Bozkurt ◽

Turkhun Cetin ◽

Ibrahim Rencuzogulları

Keyword(s):

Endothelial Dysfunction ◽

Carotid Artery ◽

Endothelial Function ◽

Retinal Vein Occlusion ◽

Carotid Artery Disease ◽

Hematological Parameters ◽

Intima Media Thickness ◽

Control Group ◽

Vein Occlusion ◽

Significant Difference

Abstract Background: To determine the condition of systemic endothelial function and carotid intima media thickness (CIMT) in patients with retinal vein occlusion (RVO) and to identify the risk factors associated with the disease.Methods: Seventy-six patients who presented to the clinic with the diagnosis of RVO and 76 age- and gender-matched healthy individuals without a RVO history were included in the study. The patients' vision levels and central macular thickness were measures, and diabetes, hypertension, hyperlipidemia, carotid artery disease, body mass index and smoking histories were recorded. The endothelial function levels of the patients, pulse wave velocity (PWV), and CIMT were measured. Serum hematological parameters were evaluated.Results: The most important risk factor in patients with RVO was found to be hypertension (OR 1.455, 95% CI 1.981-9.272; p=0.001) compared to the control group, and diabetes (OR 0.460, 95% CI 1.981-9.272; p=0.001) and hyperlipidemia (OR 0.124, 95% CI 0.371-3.456; p=0.828) were significantly more common among the patients.There was a statistically significant difference between the RVO and control groups in terms of flow-mediated dilation (OR 0.050, 95% CI 0.020-0.080; p =0.001), PWV (OR 0.392, 95% CI 0.271-0.513; p<0.001), and the CIMT of both sides (OR 2.434, 95% CI 1.801-3.055 for the right CIMT and OR 2.284, 95% CI 1.646-2.922 for the left CIMT) (p<0.001 for all).Conclusion: Considering that RVO is associated with systemic endothelial dysfunction and may also be accompanied by carotid artery stenosis, we think that additional systemic diseases should be questioned in this patient group.

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Exploring the Antihypertensive and Vascular-Protective Effects of Blueberries in Middle-Aged/Older Men: Study Protocol

Current Developments in Nutrition ◽

10.1093/cdn/nzaa065_010 ◽

2020 ◽

Vol 4 (Supplement_2) ◽

pp. 1745-1745

Author(s):

Emily Woolf ◽

Allegra Vazquez ◽

Sarah Johnson

Keyword(s):

Nitric Oxide ◽

Endothelial Dysfunction ◽

Arterial Stiffness ◽

Endothelial Function ◽

Vascular System ◽

Oxidized Ldl ◽

Reactive Hyperemia ◽

Protective Effects ◽

Freeze Dried ◽

Stage 1

Abstract Objectives Previous research has demonstrated the antihypertensive and vascular-protective effects of blueberries in postmenopausal women with elevated blood pressure (BP) or stage 1-hypertension (HTN). However, this has not been explored in men with elevated BP or HTN. The objective of the present study is to examine effects of blueberry (BB) on BP, endothelial function, and arterial stiffness in men with elevated BP or stage 1-HTN, and baseline endothelial dysfunction, as well as to investigate possible mechanisms involved with BB on vascular health. Methods In a randomized, double-blind, placebo-controlled, parallel-arm trial, men with elevated BP or stage 1-HTN (systolic BP of 120–139 mmHg, and a diastolic BP < 90 mmHg), and endothelial dysfunction (reactive hyperemia index, RHI) <1.67, but otherwise healthy, will be randomized to receive either 22 g/day of freeze-dried wild BB powder or 22 g/day of placebo powder for 12 weeks. Primary outcomes for this study are BP and RHI, which is a measure of vascular endothelial function assessed using peripheral arterial tonometry. Secondary outcomes include analysis of arterial stiffness, measured by pulse wave velocity (PWV), as well as blood biomarkers of cardiovascular and metabolic health that include blood lipids, hemoglobin A1c, oxidized LDL, nitric oxide, and adhesion molecules. Furthermore, endothelial cells will be biopsied to provide mechanistic insight on how BB consumption might affect the vascular system by utilizing quantitative immunofluorescence. Results We hypothesize that 22 g/day of BB consumption (∼1 cup) for 12 weeks will improve endothelial function, arterial stiffness, and BP in men with elevated BP and/or stage 1-HTN. We also hypothesize that these improvements will be mediated by reductions in vascular oxidative stress and inflammation, and increased nitric oxide bioavailability. Conclusions This study has potential to provide unique in vivo (functional) and ex vivo (molecular) support for the hypothesis that BB consumption may attenuate endothelial dysfunction, arterial stiffness, and high BP that occurs with aging. Funding Sources Wild Blueberry Association of North America.

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Evaluation of Systemic Endothelial Dysfunction in Patients with Retinal Vein Occlusion

10.21203/rs.3.rs-341111/v1 ◽

2021 ◽

Author(s):

Erdinc Bozkurt ◽

Turkhun Cetin ◽

Ibrahim Rencuzogulları

Keyword(s):

Endothelial Dysfunction ◽

Carotid Artery ◽

Endothelial Function ◽

Retinal Vein Occlusion ◽

Carotid Artery Disease ◽

Hematological Parameters ◽

Intima Media Thickness ◽

Control Group ◽

Vein Occlusion ◽

Significant Difference

Abstract Purpose: To determine the condition of systemic endothelial function and carotid intima media thickness (CIMT) in patients with retinal vein occlusion (RVO) and to identify the risk factors associated with the disease.Material-Method: Seventy-six patients who presented to the clinic with the diagnosis of RVO and 76 age- and gender-matched healthy individuals without a RVO history were included in the study. The patients' vision levels and central macular thickness were measures, and diabetes, hypertension, hyperlipidemia, carotid artery disease, body mass index and smoking histories were recorded. The endothelial function levels of the patients, pulse wave velocity (PWV), and CIMT were measured. Serum hematological parameters were evaluated.Results: The most important risk factor in patients with RVO was found to be hypertension (OR 1.455, 95% CI 1.981-9.272; p=0.001) compared to the control group, and diabetes (OR 0.460, 95% CI 1.981-9.272; p=0.001) and hyperlipidemia (OR 0.124, 95% CI 0.371-3.456; p=0.828) were significantly more common among the patients.There was a statistically significant difference between the RVO and control groups in terms of flow-mediated dilation (OR 0.050, 95% CI 0.020-0.080; p =0.001), PWV (OR 0.392, 95% CI 0.271-0.513; p<0.001), and the CIMT of both sides (OR 2.434, 95% CI 1.801-3.055 for the right CIMT and OR 2.284, 95% CI 1.646-2.922 for the left CIMT) (p<0.001 for all).Conclusion: Considering that RVO is associated with systemic endothelial dysfunction and may also be accompanied by carotid artery stenosis, we think that additional systemic diseases should be questioned in this patient group.

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Abstract 109: Association of Endothelial Dysfunction with Non-invasive Measures of Vascular Stiffness in Young-middle Aged Non-hypertensive Individuals

Hypertension ◽

10.1161/hyp.68.suppl_1.109 ◽

2016 ◽

Vol 68 (suppl_1) ◽

Author(s):

Cynthia Cheng ◽

Raymond Townsend ◽

Julio A Chirinos ◽

Scott Keith

Keyword(s):

Cardiovascular Risk ◽

Endothelial Dysfunction ◽

Arterial Stiffness ◽

Endothelial Function ◽

Reactive Hyperemia ◽

Systolic Pressure ◽

Vascular Stiffness ◽

Wave Reflections ◽

Middle Aged ◽

Study Objective

Arterial stiffness and enhanced wave reflections independently predict cardiovascular risk. Wave reflections augment central (aortic) pulse pressure (PP), an index of arterial stiffness, and systolic pressure. Increased wave reflections and PP have previously been associated with endothelial dysfunction in hypertensive and healthy middle-aged adults. The study objective was to determine whether endothelial dysfunction is associated with PP and other measures of vascular stiffness in young normotensive and prehypertensive subjects. We measured office, central, and 24-hour measurements in 102 (64 female, 38 male) non-hypertensive, non-diabetic participants. Endothelial function was assessed non-invasively using post-ischemic reactive hyperemia with strain-gauge plethysmography. The racially diverse subject pool was comprised of 60% Caucasians, 18% African Americans, and 24% Asians, with mean age 30, mean BMI 25.6, mean office SBP/DBP = 110 ± 13 mm Hg/70 ± 9 mm Hg. Endothelial function was highly associated with office (β= - 4.2 mm Hg, p<0.001) and 24-hour PP (β= - 1.4 mm Hg, p=0.008), along with central measures of wave reflection: ((augmentation pressure (β= - 2.1 mm Hg), augmentation index (β= - 3.7): both p<0.001). Beta values correspond to the change noted for one standard deviation in endothelial function. In conclusion, endothelial dysfunction is significantly and consistently associated with arterial stiffness and increased wave reflections in young non-hypertensive adults. Identification of endothelial dysfunction in otherwise healthy young individuals may provide an opportunity to reduce vascular stiffness and associated cardiovascular risk.

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MICROALBUMINURIA IS NOT ASSOCIATED WITH ENDOTHELIAL DYSFUNCTION IN OBESE AND OVERWEIGHT WOMEN, BUT IS STRONGLY CORRELATED WITH FASTING GLYCEMIA

Brazilian Journal of Medicine and Human Health ◽

10.17267/2317-3386bjmhh.v1i2.239 ◽

2013 ◽

Vol 1 (2) ◽

Author(s):

Rômulo Bagano Menezes ◽

Raphael Ribeiro Sampaio ◽

Armênio Guimarães ◽

Lucas Lima Olivieri ◽

Maria De Lourdes Lima ◽

...

Keyword(s):

Endothelial Dysfunction ◽

Endothelial Function ◽

Subclinical Atherosclerosis ◽

Reactive Hyperemia ◽

Multivariate Logistic Regression Analysis ◽

Secondary Data ◽

Cross Sectional Study ◽

Obese Women ◽

Cross Sectional ◽

Fasting Glycemia

This study aimed to evaluate the association between endothelial dysfunction and microalbuminuria levels in overweight and obese women. Methods: This cross-sectional study analyzed secondary data of patients with BMI ≥ 25 Kg/m2 who had microalbuminuria and endothelial function test already performed and inserted into the survey database. The endothelial function was evaluated by reactive hyperemia test (endothelium-dependent vasodilation). Results: This study included 41 women aged of 53 ± 11 years, BMI of 32.56 ± 5.06 Kg/m2, WC of 100.36 ± 23.21 cm. There was no correlation between microalbuminuria and endothelial function. A multivariate logistic regression analysis identified glucose fasting (β = 0.804; p < 0,00,1) and HDL (β = - 0.309; p = 0.048) levels as independent predictors of microalbuminuria. Conclusion: Microalbuminuria is not useful as a marker of subclinical atherosclerosis in this population, however can be associated to glucose fasting and HDL levels.

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