scholarly journals Supplementation with Hydroxytyrosol and Punicalagin Improves Early Atherosclerosis Markers Involved in the Asymptomatic Phase of Atherosclerosis in the Adult Population: A Randomized, Placebo-Controlled, Crossover Trial

Nutrients ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 640 ◽  
Author(s):  
Rebeca Quirós-Fernández ◽  
Bricia López-Plaza ◽  
Laura Bermejo ◽  
Samara Palma-Milla ◽  
Carmen Gómez-Candela
Keyword(s):  
Blood Pressure ◽  
Endothelial Dysfunction ◽  
Endothelial Function ◽  
Crossover Trial ◽  
Adult Population ◽  
Oral Supplementation ◽  
Flow Mediated Dilatation ◽  
Asymptomatic Phase ◽  
Double Blinded ◽  
Early Atherosclerosis

Hydroxytyrosol (HT) and Punicalagin (PC) exert cardioprotective and anti-atherosclerotic effects. This study evaluates the effect of oral supplementation with HT and PC (SAx) on early atherosclerosis markers in middle-aged, seemingly healthy adults. A randomized, double-blinded, placebo-controlled, crossover trial was performed for 20 weeks. There were two treatment sequences (Placebo/SAx, n = 41; SAx/Placebo, n = 43) for which the intervention periods (Placebo and SAx) were 8 weeks long, followed by a 4-week wash out period. The supplement was composed of 9.9 mg of HT and 195 mg of PC, and the placebo was composed of maltodextrin. SAx increased endothelial function (Flow-mediated dilatation [FMD]: 2.36%; p < 0.001) in the endothelial dysfunction subgroup compared to the placebo (2.36 ± 3.9 vs. 0.76 ± 3.5%, p < 0.05). SAx also reduced oxLDL by −28.74 ng/mL (p < 0.05) in subjects with higher levels of oxLDL, which was an improvement compared with the placebo (−28.74 ± 40.2 vs. 25.64 ± 93.8 ng/mL, p < 0.001). The prehypertension and hypertension subgroups exhibited decreased systolic (−15.75 ± 9.9 mmHg; p < 0.001) and diastolic (−6.36 ± 8.7 mmHg; p < 0.001) blood pressure after SAx consumption. Moreover, the systolic prehypertension and hypertension subgroups presented significant differences in systolic blood pressure compared to the placebo (−15.75 ± 9.9 vs. −2.67 ± 12.0 mmHg, p < 0.05). In conclusion, the supplement exerted anti-atherosclerotic effects by improving endothelial function, blood pressure, and levels of circulating oxLDL, especially for persons in whom these parameters were altered.

Abstract P332: Effects of Intravenous Infusion of Polyunsaturated Fatty Acids and Dextrose on Blood Pressure and Endothelial Function in Obese Subjects

2011 ◽  
Vol 109 (suppl_1) ◽  
Author(s):  
Aidar R Gosmanov ◽  
Dawn Smiley ◽  
Joselita Siquiera ◽  
Gonzalo Robalino ◽  
Limin Peng ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Fatty Acids ◽  
Endothelial Dysfunction ◽  
Endothelial Function ◽  
Polyunsaturated Fatty Acids ◽  
Healthy Subjects ◽  
Flow Mediated Dilatation ◽  
Obese Subjects ◽  
Artery Flow ◽  
Dextrose Infusion

Hyperglycemia and elevated free fatty acids (FFAs) are implicated in the development of hypertension and endothelial dysfunction. We recently reported that 8-hour infusion of soy-bean oil containing polyunsaturated fatty acids (Intralipid) results in the elevation of blood pressure (BP) and endothelial dysfunction in obese healthy subjects. However, the effects of dextrose infusion or combination of dextrose and Intralipid on BP, endothelial function and insulin action are not known. Accordingly, we compared the effects of 8-hour infusion of normal saline at 40 ml/hr, Intralipid 20% at 40 mL/hr, dextrose 10% at 40 ml/hr and combination of Intralipid and dextrose on BP, endothelial function in 12 obese healthy subjects [ages:41±7 yrs, BMI:32±2 kg/m 2 , BP:113/65 mmHg, HOMA-IR: 2.0±1.0]. Blood pressure, brachial artery flow-mediated dilatation (FMD), and levels of FFAs, glucose, and insulin were measured at 0, 4 and 8 h of infusion. Intralipid infusion significantly increased BP, decreased FMD, and increased plasma FFAs (Table). Unlike Intralipid alone, the combination of Intralipid and dextrose did not increase BP but resulted in FMD changes similar to Intralipid alone. Levels of plasma glucose and insulin increased over time after dextrose infusion alone or in combination with Intralipid but not with lipid infusion alone. Compared with Intralipid, the addition of dextrose to Intralipid led to restoration of FFAs to normal level. In summary, Intralipid but not dextrose infusion alone or in combination with Intralipid results in significant elevation in blood pressure in obese healthy subjects. In contrast, dextrose administration had no effect on Intralipid-induced endothelial dysfunction. The mechanisms underlying differences in vascular response after addition of dextrose to Intralipid are not known, but these results indicate that dextrose-induced mild hyperinsulinemia may regulate adverse hemodynamic effects of fat administration in obese subjects.

scholarly journals Double-blinded, placebo-controlled crossover trial to determine the effects of midodrine on blood pressure during cognitive testing in persons with SCI

Spinal Cord ◽  
2020 ◽  
Vol 58 (9) ◽  
pp. 959-969
Author(s):  
Jill M. Wecht ◽  
Joseph P. Weir ◽  
Caitlyn G. Katzelnick ◽  
Nancy D. Chiaravalloti ◽  
Steven C. Kirshblum ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Crossover Trial ◽  
Cognitive Testing ◽  
Double Blinded

scholarly journals Effects of Blackcurrant Anthocyanin on Endothelial Function and Peripheral Temperature in Young Smokers

Molecules ◽  
2019 ◽  
Vol 24 (23) ◽  
pp. 4295 ◽  
Author(s):  
Toshiko Tomisawa ◽  
Naoki Nanashima ◽  
Maiko Kitajima ◽  
Kasumi Mikami ◽  
Shizuka Takamagi ◽  
...  
Keyword(s):  
Endothelial Dysfunction ◽  
Endothelial Function ◽  
Skin Temperature ◽  
Healthy Male ◽  
Double Blind ◽  
Beneficial Effects ◽  
Flow Mediated Dilatation ◽  
Young Smokers ◽  
Peripheral Temperature ◽  
Level 2

Background: Blackcurrant anthocyanin (BCA) is expected to repair endothelial dysfunction, but it remains unclear whether beneficial effects are present in young healthy persons. This study examines whether supplements containing blackcurrant anthocyanin improve endothelial function and peripheral temperature in young smokers. Methods: Young, healthy male nonsmokers (N group: n = 11; mean age 22 ± 2 years) and smokers (S group: n = 13; mean age 21 ± 1 years) were enrolled. A randomized and double-blind trial was designed to compare the effects of no supplement, a supplement containing 50 mg of blackcurrant anthocyanin (supplement A), and a supplement containing 50 mg of blackcurrant anthocyanin plus vitamin E (supplement B) on flow-mediated dilatation (FMD) and skin temperature. Results: Under no supplement, FMD was unchanged during the 2 h period after smoking in the N group, whereas it was decreased during the 2 h period after smoking in the S group. Under the A supplement, FMD was decreased 1 h after smoking and returned to the baseline level 2 h after smoking in the S group. The skin temperature in the area of the foot dorsum was decreased in the S group after smoking compared with that in the N group, who did not smoke, whereas under A and B supplements, it was higher in the S group compared with that in the N group. Conclusions: BCA could attenuate the smoking-induced acute endothelial dysfunction and improve peripheral temperature in young smokers.

scholarly journals Clustering of lifestyle characteristics and their association with cardio-metabolic health: the Lifestyles and Endothelial Dysfunction (EVIDENT) study

2015 ◽  
Vol 114 (6) ◽  
pp. 943-951 ◽  
Author(s):  
Maria C. Patino-Alonso ◽  
José I. Recio-Rodríguez ◽  
José Felix Magdalena-Belio ◽  
María Giné-Garriga ◽  
Vicente Martínez-Vizcaino ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Waist Circumference ◽  
Endothelial Dysfunction ◽  
Adult Population ◽  
Healthy Diet ◽  
Fat Percentage ◽  
Cross Sectional ◽  
Multi Centre Study ◽  
Lifestyle Behaviours ◽  
Cholesterol Levels

AbstractLittle is known about the clustering patterns of lifestyle behaviours in adult populations. We explored clusters in multiple lifestyle behaviours including physical activity (PA), smoking, alcohol use and eating habits in a sample of adult population. A cross-sectional and multi-centre study was performed with six participating groups distributed throughout Spain. Participants (n 1327) were part of the Lifestyles and Endothelial Dysfunction (EVIDENT) study and were aged between 20 and 80 years. The lifestyle and cardiovascular risk (CVR) factors were analysed using a clustering method based on the HJ-biplot coordinates to understand the variables underlying these groupings. The following three clusters were identified. Cluster 1: unhealthy, 677 subjects (51 %), with a slight majority of men (58·7 %), who were more sedentary and smokers with higher consumption of whole-fat dairy products, bigger waist circumference as well as higher TAG levels, systolic blood pressure (SBP) and CVR. Cluster 2: healthy/PA, 265 subjects (20 %), including 24·0 % of males with high PA. Cluster 3: healthy/diet, including 29 % of the participants, with a higher consumption of olive oil, fish, fruits, nuts, vegetables and lower alcohol consumption. Using the unhealthy cluster as a reference, and after adjusting for age and sex, the multiple regression analysis showed that belonging to the healthy/PA cluster was associated with a lower waist circumference, body fat percentage, SBP and CVR. In summary, the three clusters were identified according to lifestyles. The ‘unhealthy’ cluster had the least favourable clinical parameters, the ‘healthy/PA’ cluster had good HDL-cholesterol levels and low SBP and the ‘healthy/diet’ cluster had lower LDL-cholesterol levels and clinical blood pressure.

Molecular Mechanisms of Endothelial Dysfunction in the Insulin-Resistant State: the Roles of Abnormal Pteridine Metabolism

Pteridines ◽  
2003 ◽  
Vol 14 (1) ◽  
pp. 13-16
Author(s):  
Kazuya Shinozaki ◽  
Atsunori Kashiwagi ◽  
Masahiro Masada ◽  
Tomio Okamura
Keyword(s):  
Endothelial Dysfunction ◽  
Endothelial Function ◽  
Molecular Mechanisms ◽  
No Synthase ◽  
Oral Supplementation ◽  
Insulin Resistant ◽  
Underlying Mechanisms ◽  
Vascular Oxidative Stress ◽  
Resistant State ◽  
Insulin Resistant State

Abstract Although abnormalities in endothelial function are described in various insulin-resistant conditions, including obesity, diabetes, and hypertension in both humans and animal models, the underlying mechanisms are poorly understood. Experimental evidence suggests that (6R)-5,6,7,8-tetrahydrobiopterin (BH4), the natural and essential cofactor of NO synthases (NOS), plays a crucial role not only in increasing the rate of NO generation by NOS bat also in Controlling the formation of superoxide anion (O2 ) in endothelial cells. Under insulin-resistant conditions where BH4 levels are suboptimal, the production of O2 by NO synthase leads to endothelial dysfunction. Furthermore, oral supplementation of BH4 (10 mg/kg/day) for 8 weeks restores endothelial function and relieved oxidative tissue damage, at least in part, through activation of eNOS in the aorta of insulin-resistant rats. These results suggest that abnormal pteridine metabolism contributes to causing endothelial dysfunction and the enhancement of vascular oxidative stress in the insulin-resistant State.

scholarly journals Correction of endothelial function in hypertension associated with tyberculosis by fixed combination of perindopril and indopamide

2007 ◽  
Vol 13 (4) ◽  
pp. 256-261
Author(s):  
N. YU. Klimenko ◽  
N. V. Drobotya ◽  
A. A. Kastanyan ◽  
V. V. Kaltykova ◽  
E. Sh. Guseynova
Keyword(s):  
Blood Pressure ◽  
Endothelial Dysfunction ◽  
Endothelial Function ◽  
Arterial Hypertension ◽  
Von Willebrand Factor ◽  
Fixed Combination ◽  
Factor Level ◽  
Hypertensive Patients ◽  
Von Willebrand ◽  
Willebrand Factor

A study of daily blood pressure (BP) dynamics, functional endothelial condition at hypertensive patients in combination with tuberculosis of various localization and estimation of an opportunity of correction of the revealed disturbances during 12-week therapy by the fixed combination of perindopril and indapamide - noliprel-forte (Servier, France) were performed. During research more expressed endothelial dysfunction at hypertensive patients, proceeding on a background of tubercular process in comparison with patients with isolated arterial hypertension was revealed. Therapy by noliprel-forte provided the reliable 24-hour control of BP level, which was accompanied by endothelial function normalization that was shown by improvement of a endothelium-dependent vasodilatation and decrease of a von Willebrand factor level. .

Abstract 3519: Modest Fat Gain Causes Endothelial Dysfunction In Lean Healthy Humans: A Randomized Blinded Controlled Trial

Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Abel Romero Corral ◽  
Justo Sierra-Johnson ◽  
Marek Orban ◽  
Apoor S Gami ◽  
Fatima H Sert Kuniyoshi ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Weight Loss ◽  
Body Composition ◽  
Weight Gain ◽  
Endothelial Dysfunction ◽  
Endothelial Function ◽  
Brachial Artery ◽  
Controlled Trial ◽  
Subcutaneous Fat ◽  
Flow Mediated Dilation

Background: Endothelial dysfunction assessed by flow mediated dilation (FMD) of the brachial artery has been identified as an independent predictor of cardiovascular events. However, whether weight gain impairs endothelial function is unknown. Methods: A randomized blinded controlled-trial to assess the effects of weight gain on endothelial function. After a weight maintenance period supervised by an experience dietitian, volunteers were randomized to gain weight (4 kg) or maintain weight. We recruited lean (BMI 18.5–24.9 kg/m 2 ) healthy volunteers (no diseases, medications and non-smokers) from the community. Using ultrasound, endothelial function was measured by FMD and non-flow mediated dilation (NFMD) of the brachial artery in the early morning (6:30 a.m.). Endothelial function was measured at baseline, after fat gain at 8 weeks and after weight loss at 16 weeks for fat-gainers and at baseline and follow-up (8 weeks) for weight maintainers. Body composition techniques to measure body fat %, such as dual x-ray absorptiometry and abdominal CT scans were performed. Results: We recruited 35 fat-gainers and 8 weight maintainers. Mean age was 29 ± 6 years and 18 (42 %) were women. There were no differences in age, anthropometric and body composition measurements, blood pressure, heart rate or apnea hypopnea index at baseline between both groups. After an average gain of 4 kg, the fat-gainer group significantly increased their total, visceral and subcutaneous fat. Brachial artery FMD and NFMD remained unchanged in weight maintainers. However, it decreaed in fat-gainers (FMD=9.1 ± 3 vs. 7.6 ± 3.2, p=0.003 and NFMD=12.0 ± 4.9 vs. 10.1 ± 6.0, p=0.01), but recovered to baseline after subjects shed the gained weight (basleline vs. recovery: FMD=9.1 ± 3 vs. 9.0 ± 3, p=NS and NFMD =12.0 ± 4.9 vs.12.6 ± 5.0, p=NS). Visceral fat gain, but not subcutaneous fat gain was significantly correlated with the decrease in brachial artery FMD (rho =−0.42, p=0.004 and rho =−0.22, p=0.15, respectively). Conclusions: In lean healthy young subjects, modest weight gain results in impaired endothelial function, even in the absence of changes in blood pressure. Endothelial funcion recovers after weight loss. Viscerar rather than subcutaneous fat predicts endothelial dysfunction.

scholarly journals Blood pressure predicts endothelial function and the effects of ethinyl estradiol exposure in young women

2018 ◽  
Vol 315 (4) ◽  
pp. H925-H933 ◽  
Author(s):  
Tessa E. Adler ◽  
Charlotte W. Usselman ◽  
Akira Takamata ◽  
Nina S. Stachenfeld
Keyword(s):  
Blood Pressure ◽  
Endothelial Dysfunction ◽  
Endothelial Function ◽  
Young Women ◽  
Pressure Range ◽  
Ethinyl Estradiol ◽  
Flow Mediated Dilation ◽  
Handgrip Exercise ◽  
Endothelial Impairment ◽  
Ischemic Handgrip Exercise

Hypertension, obesity, and endothelial function predict cardiovascular disease in women, and these factors are interrelated. We hypothesized that hypertension and obesity are associated with endothelial dysfunction in young women and that short-term ethinyl estradiol exposure mitigates this dysfunction. We examined flow-mediated dilation (FMD) responses before and during 7 days of oral ethinyl estradiol (30 µg/day) in 19 women (25 ± 5, 18–35 yr). We divided our sample into two groups based on two criteria: blood pressure and obesity. Women were divided into normal blood pressure (NBP; mean arterial pressure range: 78–91 mmHg, n = 7) and high blood pressure (HBP; mean arterial pressure range: 95–113 mmHg, n = 9) groups. We also stratified our subjects by body composition (lean: 18–31%, n = 8; obese: 38–59%, n = 9). We evaluated brachial FMD after two distinct shear stress stimuli: occlusion alone and occlusion with ischemic handgrip exercise. Obesity was unrelated to both FMD responses. Before ethinyl estradiol administration, the HBP group had blunted ischemic exercise responses relative to the NBP group (8.0 ± 3.5 vs. 12.3 ± 3.2%, respectively, P = 0.05). However, during ethinyl estradiol administration, ischemic exercise responses increased in the HBP group (12.8 ± 6.1%, P = 0.04) but decreased in the NBP group (5.6 ± 2.4%, P = 0.01). Standard FMD did not reveal differences between groups. In summary, 1) moderate HBP predicted endothelial impairment, 2) ethinyl estradiol administration had divergent effects on FMD in women with NBP versus HBP, and 3) enhanced FMD (ischemic handgrip exercise) revealed differences in endothelial function, whereas standard FMD (occlusion alone) did not. NEW & NOTEWORTHY We are the first to show that mild hypertension is a stronger predictor of endothelial dysfunction than obesity in healthy women without overt cardiovascular dysfunction. Importantly, the standard 5-min flow-mediated vasodilation stimulus did not detect endothelial dysfunction in our healthy population; only an enhanced ischemic handgrip exercise shear stress stimulus detected endothelial impairment. Estradiol administration increased flow-mediated dilation in women with high blood pressure, so it may be a therapeutic intervention to improve endothelial function.

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