Perivascular Adipose Tissue Oxidative Stress On The Pathophysiology Of Cardiometabolic Diseases

2019 ◽  
Vol 15 ◽  
Author(s):  
Jamaira Aparecida Victorio ◽  
Ana Paula Davel
Keyword(s):  
Oxidative Stress ◽  
Risk Factors ◽  
Adipose Tissue ◽  
Vascular Function ◽  
Cardiometabolic Risk ◽  
Cardiometabolic Risk Factors ◽  
Pathophysiological Mechanism ◽  
Ros Production ◽  
Perivascular Adipose Tissue ◽  
New Findings

Most of the systemic blood vessels are surrounded by the perivascular adipose tissue (PVAT). Healthy PVAT is anticontractile and anti-inflammatory, but a dysfunctional PVAT has been suggested to link cardiometabolic risk factors to vascular dysfunction. Vascular oxidative stress is an important pathophysiological event in cardiometabolic complications of obesity, type 2 diabetes, and hypertension. PVAT-derived adipocytes generate reactive oxygen species (ROS) including superoxide anion and hydrogen peroxide that might signal to vascular wall. Therefore, an abnormal generation of ROS by PVAT emerges as a potential pathophysiological mechanism underlying vascular injury. This review summarizes new findings describing ROS production in PVAT of several vascular beds, major sources of ROS in this tissue including mitochondria, NADPH oxidase and eNOS uncoupled, and finally, changes in ROS production affecting vascular function in the presence of cardiometabolic risk factors and diseases.

Changes in oxidative stress markers and cardiometabolic risk factors among Roux-en-Y gastric bypass patients after 3- and 12-months postsurgery follow-up

2019 ◽  
Vol 15 (10) ◽  
pp. 1738-1745
Author(s):  
Sônia Lopes Pinto ◽  
Leidjaira Lopes Juvanhol ◽  
Leandro Licursi de Oliveira ◽  
Rodolfo Castilho Clemente ◽  
Josefina Bressan
Keyword(s):  
Oxidative Stress ◽  
Risk Factors ◽  
Gastric Bypass ◽  
Cardiometabolic Risk ◽  
Cardiometabolic Risk Factors ◽  
Oxidative Stress Markers ◽  
Stress Markers

scholarly journals Relationship Between Meeting 24-Hour Movement Guidelines and Cardiometabolic Risk Factors in Children

2017 ◽  
Vol 14 (10) ◽  
pp. 779-784 ◽  
Author(s):  
Peter T. Katzmarzyk ◽  
Amanda E. Staiano
Keyword(s):  
Physical Activity ◽  
Risk Factors ◽  
Blood Pressure ◽  
Adipose Tissue ◽  
Subcutaneous Adipose Tissue ◽  
Cardiometabolic Risk ◽  
Vigorous Physical Activity ◽  
Density Lipoprotein ◽  
Cardiometabolic Risk Factors ◽  
Subcutaneous Adipose

Background:The purpose of this study was to evaluate the relationship between adherence to pediatric 24-hour movement guidelines (moderate to vigorous physical activity, sedentary behavior, and sleep) and cardiometabolic risk factors.Methods:The sample included 357 white and African American children aged 5–18 years. Physical activity, television viewing, and sleep duration were measured using questionnaires, and the 24-hour movement guidelines were defined as ≥60 minutes per day of moderate to vigorous physical activity on ≥5 days per week, ≤ 2 hours per day of television, and sleeping 9–11 hours per night (ages 5–13 y) or 8–10 hours per night (ages 14–18 y). Waist circumference, body fat, abdominal visceral and subcutaneous adipose tissue, blood pressure, fasting triglycerides, high-density lipoprotein cholesterol, and glucose were measured in a clinical setting.Results:A total of 26.9% of the sample met none of the guidelines, whereas 36.4%, 28.3%, and 8.4% of the sample met 1, 2, or all 3 guidelines, respectively. There were significant associations between the number of guidelines met and body mass index, visceral and subcutaneous adipose tissue, triglycerides, and glucose. There were no associations with blood pressure or high-density lipoprotein cholesterol.Conclusions:Meeting more components of the 24-hour movement guidelines was associated with lower levels of obesity and several cardiometabolic risk factors. Future efforts should consider novel strategies to simultaneously improve physical activity, sedentary time, and sleep in children.

scholarly journals Abdominal visceral and subcutaneous adipose tissue and associations with cardiometabolic risk in Inuit, Africans and Europeans: a cross-sectional study

BMJ Open ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. e038071 ◽  
Author(s):  
Pernille Falberg Rønn ◽  
Gregers Stig Andersen ◽  
Torsten Lauritzen ◽  
Dirk Lund Christensen ◽  
Mette Aadahl ◽  
...  
Keyword(s):  
Risk Factors ◽  
Insulin Resistance ◽  
Adipose Tissue ◽  
Subcutaneous Adipose Tissue ◽  
Cardiometabolic Risk ◽  
Abdominal Fat ◽  
Cardiometabolic Risk Factors ◽  
Hepatic Insulin Resistance ◽  
Cross Sectional ◽  
Subcutaneous Adipose

ObjectivesAbdominal fat has been identified as a risk marker of cardiometabolic disease independent of overall adiposity. However, it is not clear whether there are ethnic disparities in this risk. We investigated the associations of visceral adipose tissue (VAT) and abdominal subcutaneous adipose tissue (SAT) with cardiometabolic risk factors in three ethnic diverse populations of Inuit, Africans and Europeans.DesignCross-sectional pooled study.SettingGreenland, Kenya and Denmark.MethodsA total of 5113 participants (2933 Inuit, 1397 Africans and 783 Europeans) from three studies in Greenland, Kenya and Denmark were included. Measurements included abdominal fat distribution assessed by ultrasound, oral glucose tolerance test, hepatic insulin resistance, blood pressure and lipids. The associations were analysed using multiple linear regressions.ResultsAcross ethnic group and gender, an increase in VAT of 1 SD was associated with higher levels of hepatic insulin resistance (ranging from 14% to 28%), triglycerides (8% to 16%) and lower high-density lipoprotein cholesterol (HDL-C, −1.0 to −0.05 mmol/L) independent of body mass index. VAT showed positive associations with most of the other cardiometabolic risk factors in Inuit and Europeans, but not in Africans. In contrast, SAT was mainly associated with the outcomes in Inuit and Africans. Of notice was that higher SAT was associated with higher HDL-C in African men (0.11 mmol/L, 95% CI: 0.03 to 0.18) and with lower HDL-C in Inuit (−0.07 mmol/L, 95% CI: -0.12 to –0.02), but not in European men (−0.02 mmol/L, 95% CI: −0.09 to 0.05). Generally weaker associations were observed for women. Furthermore, the absolute levels of several of the cardiometabolic outcomes differed between the ethnic groups.ConclusionsVAT and SAT were associated with several of the cardiometabolic risk factors beyond overall adiposity. Some of these associations were specific to ethnicity, suggesting that ethnicity plays a role in the pathway from abdominal fat to selected cardiometabolic risk factors.

The Visceral Adiposity Index: Relationship with cardiometabolic risk factors in obese and overweight postmenopausal women – A MONET group study

2013 ◽  
Vol 38 (8) ◽  
pp. 892-899 ◽  
Author(s):  
Belinda Elisha ◽  
Virginie Messier ◽  
Antony Karelis ◽  
Lise Coderre ◽  
Sophie Bernard ◽  
...  
Keyword(s):  
Risk Factors ◽  
Weight Loss ◽  
Adipose Tissue ◽  
Postmenopausal Women ◽  
Cardiometabolic Risk ◽  
Area Under The Curve ◽  
Weight Loss Program ◽  
Cardiometabolic Risk Factors ◽  
Visceral Adiposity Index ◽  
Visceral Adipose

A recent study suggested visceral adipose index (VAI) as an indicator of adipose tissue distribution and function associated with cardiometabolic risk. We aim to examine the association between VAI and visceral adipose tissue (VAT), insulin sensitivity, and a large panel of associated cardiometabolic risk factors, and to determine if changes in VAI after weight loss intervention will reflect changes in VAT. We performed a secondary analysis using the data of 99 overweight and postmenopausal women that completed a 6-month weight loss program (Montreal Ottawa New Emerging Team Study). VAI was calculated according to the equation by Amato et al. (2010; Diabetes Care, 33(4):920–922). At baseline, VAI was associated with VAT (r = 0.284, p < 0.01) but not with subcutaneous adipose tissue (SAT) while body mass index (BMI) and waist circumference (WC) were significantly related to both. BMI and WC demonstrated significantly stronger predictive value of VAT accumulation (area under the curve = 0.84 and 0.86, respectively) than VAI (area under the curve = 0.61; p < 0.01). However, VAT, BMI, WC, and VAI were similarly related to fasting insulin and glucose disposal rates. After a 6-month weight loss program, VAI decreased significantly and similarly in both intervention groups (p < 0.01). In addition, the percentage of change in VAI showed the significantly weakest correlation (r = 0.25) with the percentage of change in VAT than BMI (r = 0.56; p < 0.01 for r comparisons) and was not a significant predictor of interindividual percentage of change in VAT while BMI accounted for 33.7%. VAI is a weak indicator of VAT function and did not predict changes in VAT after weight loss. Furthermore, this index was not superior to BMI or WC. However, VAI is a good indicator of metabolic syndrome.

scholarly journals APO B/APO A1 RATIO AND ITS CORRELATION WITH CARDIOMETABOLIC RISK FACTORS AND OXIDATIVE STRESS IN SUBJECTS WITH METABOLIC SYNDROME

2020 ◽  
pp. 1-3
Author(s):  
Deepthy C Sahadevan* ◽  
Archna Sing ◽  
Busi Karunanand ◽  
Himani Thakkar ◽  
Ajay Kumar Gautam
Keyword(s):  
Oxidative Stress ◽  
Risk Factors ◽  
Cardiometabolic Risk ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Cardiometabolic Risk Factors ◽  
Oxidative Stress Marker ◽  
Low Density ◽  
Apo B ◽  
And Oxidative Stress

Objective: This study was designed to assess the apolipoprotein B (Apo-B), apolipoprotein A (Apo A) and Apo B/Apo A-I ratio in subjects with and withoutmetabolic syndrome andtoevaluate the correlationofApoB/ApoA-Iratiowithoxidative stressmarker andcardiovasculardisease risk. Methods:Atotal of 308 subjects including one hundred and fty- ve cases and one hundred and fty- three controls were recruited for this study. All the subjects were classied according to the NCEPATP III (National cholesterol education program – Adult treatment panel III) criteria for MetS. Anthropometric and clinical characteristics were recorded using clinical Proforma. Blood samples were collected for doing plasma glucose, Lipid prole analysis [Total Cholesterol (TC), Triglyceride (TG), high-density lipoprotein (HDL)], ApoA1, Apo B and oxidative stress marker - Malondialdehyde (MDA). Serum low-density lipoprotein (LDL), very-low-density lipoprotein (VLDL) and Apo B/Apo A-I ratio were calculated. Comparison of data between the two groups was done by t test. Correlation coefcient of Apo B/ Apo A1 ratio with cadiometabolic risk factors were calculated. Result: We found that cardiometabolic risk factors like abdominal obesity, systolic and diastolic blood pressure, fasting plasma glucose, TG, atherogenic lipoproteins LDL, Apo B, Apo B/Apo A-I ratio and MDA were signicantly high in subjects with MetS whereas anti-atherogenic factor Apo A1 was signicantly low. We also observed that Apo B/AI ratio was positively related to cardiometabolic risk factors and with oxidative stress marker. Conclusion:Apo B/AI ratio was related to metabolic syndrome and was found to be a reliable indicator of cardiovascular risk in MetS.

scholarly journals Oxidative Stress in Healthy Subjects with Cardiometabolic Risk Factors

2015 ◽  
Vol 29 (S1) ◽  
Author(s):  
Beatriz Martinez‐Carrillo ◽  
Marisol Neri ◽  
Alejandra Benitez ◽  
Roxana Valdés‐Ramos ◽  
Jorge Escoto‐Herrera
Keyword(s):  
Oxidative Stress ◽  
Risk Factors ◽  
Healthy Subjects ◽  
Cardiometabolic Risk ◽  
Cardiometabolic Risk Factors
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