scholarly journals The role of non-alcoholic fatty liver disease in the development of vascular rigidity and cardiovascular risk in patients with arterial hypertension

Author(s):  
M. E. Statsenko ◽  
A. M. Streltsova

Purpose. To assess the parameters of lipid and carbohydrate metabolism, insulin resistance, chronic low-intensity systemic inflammation, structural and functional parameters of the liver in patients with hypertension (AH) and non-alcoholic fatty liver disease (NAFLD) compared with patients with isolated AH, as well as the impact of changes in these parameters on reducing the elasticity of the main arteries and increasing the risk of cardiovascular complications in patients with comorbid pathology.Material and methods. A comparative cross-sectional study was carried out, which included 120 patients, aged 45 to 65, with AH grade I-II, stages 1-2 (with (FLI≥60) and without NAFLD). During the initial examination, a clinical examination was carried out, the parameters of lipid, carbohydrate and structural-functional parameters of the liver were assessed. The severity of chronic systemic inflammation and insulin resistance were also assessed. Pulse wave velocity (PWV), central aortic pressure (CAP), vascular age and total cardiovascular risk were measured according to the SCORE scale.Results. The data obtained indicate a more pronounced insulin resistance, chronic systemic inflammation, as well as significantly higher lipid metabolism in patients with AH and NAFLD in comparison with patients with isolated AH. In addition, in patients of this group, the indicators of PWV and CAP were significantly higher, and patients with AH and NAFLD had a higher 10-year fatal risk (p=0.013). The performed ROC analysis showed that at FLI≥60, a high risk of PWVm>10m/s is predicted. Multiple regression analysis found that an increase in VLDL cholesterol leads to an increase in the values of both PWVe (p<0.001) and PWVb (p=0.048). The 10-year fatal risk (SCORE) in patients with AH and NAFLD increased with an increase in PWVe (p=0.021), FLI (p=0.013), and visceral obesity (p<0.001).Conclusion. The study shows that in patients with AH and NAFLD, compared with patients with isolated AH, the indicators of insulin resistance and chronic low-intensity systemic inflammation are significantly higher, the highly atherogenic type of hyperlipidemia and visceral obesity are more often found. Also, in comorbid patients with AH, statistically significant higher values of CAP and augmentation index are determined. Stiffness indices of the great arteries were also significantly higher in patients with comorbid pathology. The ROC analysis showed that at FLI≥60, a high risk of PWVm>10 m/s was predicted, which is associated with the development of cardiovascular complications. Also, multiple regression analysis showed that the increase in PWVe and PWVm was mainly due to an increase in VLDL cholesterol, and the 10-year fatal cardiovascular risk of complications had the greatest increase with an increase in the values of PWVe, FLI and visceral obesity.

2019 ◽  
Vol 23 (3-4) ◽  
pp. 3-6 ◽  
Author(s):  
Yu.I. Manusha ◽  
Yu.M. Kazakov ◽  
Т.А. Trybrat ◽  
K.E. Ischeykin

Nowadays, coronary heart disease and non-alchoholic fatty liver disease are significant problems in Ukraine and world. Functional liver disorders potentiate the development and progression of CHD. The initiation process of atherosclerosis is a chronic systemic inflammation of low intensity. This view on atherosclerosis development has been forming during the past two decades. The aim of the research was to study the features/characteristics of systemic inflammation of low intensity in patients with coronary heart disease in combination with non-alcoholic fatty liver disease. The research involved 135 people with CHD: stable angina, I-II functional class, 0-I heart failure in combination with non-alcoholic fatty liver disease and 30 healthy individuals. We examined patients in terms of blood levels of cytokines -TNFα and IL-10, the content of the acute phase reactant and the coagulation factor, the marker of endothelial dysfunction is the amount of circulating endothelial microparticles (CEM) CD32+ CD40+ and the expression level of IkBα gene NF-kB in mononuclear peripheral blood. We studied the level of expression of the mRNA gene of IkBα in mononuclear cells, which reflects the level of transcriptional activity of NF-kB in patients with stable coronary artery disease and CHD in combination with NAFLD showed a significant increase in the expression of the mRNA gene of IkBα by 88.5% compared to patients with stable stable coronary heart disease. The analysis of the functional state of the endothelium with help of CEM CD32+ CD40+ has shown the presence of endothelial dysfunction in the groups of patients with CHD and CHD in combination with of NAFLD. Comparison of the indicators of systemic inflammation of low intensity and marker of endothelial dysfunction in patients with CHD in combination with NAFLD revealed a significant increase of TNFα, acute phase reactant and coagulation fibrinogen factor and expression of the mRNA IkBα gene in patients with comorbidity, indicating an increase the level of systemic inflammation of low intensity in patients with CHD in combination with NAFLD as compared with the group of patients with CHD.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Pui Lin Chong ◽  
David Laight ◽  
Richard J. Aspinall ◽  
Antony Higginson ◽  
Michael H. Cummings

Abstract Background Non-alcoholic fatty liver disease (NAFLD) is associated with increased cardiovascular risk irrespective of conventional risk factors. The role of gut-liver interaction is implicated in its development. We investigated the effects of VSL#3® probiotic supplementation on biomarkers of cardiovascular risk and liver injury in patients with NAFLD. Methods A randomised, double-blinded, placebo-controlled, proof-of-concept study was undertaken. Patients with NAFLD were randomly allocated to take 2 sachets VSL#3® probiotic or placebo twice daily for 10 weeks. Measurements of endothelial function (digital photoplethysmography, sVCAM-1 and cGMP), oxidative stress (glutathione ratio and LHP), inflammation (hsCRP), insulin resistance (HOMA-IR) and liver injury [transaminases, fibrosis risk score and acoustic structure quantification (ASQ)] were undertaken before and after intervention. Difference in baseline characteristics between the treatment groups was analysed using independent t-test or Mann Whitney U test for non-parametric data. Independent t-test was used to compare the outcomes at the end of the study between the two treatment groups. Wilcoxon Signed Rank test was used to determine the difference in fibrosis risk scores before and after treatment. Spearman’s correlation was used to determine any association between cardiovascular and hepatic markers at baseline. Results Thirty-five patients completed the study (28 males and 7 females) with a mean age of 57 ± 8 years, body mass index of 32.6 ± 5.0 kg/m2 and a relatively short duration of NAFLD (median duration 0.3 IQR 2.0 years). No significant difference was observed in biomarkers of cardiovascular risk and liver injury following VSL#3® supplementation. Significant correlations were noted between sVCAM-1 and hsCRP (rho = 0.392, p = 0.01), and HOMA-IR and AST (rho = 0.489, p < 0.01) at baseline. Conclusions This is the first study to evaluate the effect of VSL#3® on ASQ in patients with NAFLD. VSL#3® did not significantly improve markers of cardiovascular risk and liver injury in patients with NAFLD. However, the study supports an association between endothelial dysfunction and inflammation in patients with NAFLD and suggests that NAFLD is linked with insulin resistance. Trial registration: ISRCTN05474560 (https://doi.org/10.1186/ISRCTN05474560) Registered 9 August 2012 (retrospectively registered).


2015 ◽  
Vol 114 (5) ◽  
pp. 796-803 ◽  
Author(s):  
Forouzan Faghihzadeh ◽  
Payman Adibi ◽  
Azita Hekmatdoost

AbstractNon-alcoholic fatty liver disease (NAFLD) is usually associated with insulin resistance, central obesity, reduced glucose tolerance, type 2 diabetes mellitus and hypertriacylglycerolaemia. The beneficial effects of resveratrol on metabolic disorders have been shown previously. The aim of this study was to evaluate the effects of resveratrol supplementation on cardiovascular risk factors in patients with NAFLD. In this randomised double-blinded placebo-controlled clinical trial, fifty NAFLD patients were supplemented with either a 500-mg resveratrol capsule or a placebo capsule for 12 weeks. Both groups were advised to follow an energy-balanced diet and physical activity recommendations. resveratrol supplementation reduced alanine aminotransferase (ALT) and hepatic steatosis significantly more than placebo (P<0·05). BMI, waist circumference, serum aspartate aminotransferase, bilirubin, HDL-cholesterol and apo a1 were reduced significantly in both groups (P<0·05); however, there were no significant differences between the two groups (P>0·05). There were no significant changes in blood pressure, insulin resistance markers and TAG in either group (P>0·05). Our data have shown that 12-week supplementation of 500 mg resveratrol does not have any beneficial effect on anthropometric measurements, insulin resistance markers, lipid profile and blood pressure; however, it reduced ALT and hepatic steatosis in patients with NAFLD.


2021 ◽  
Vol 27 (3) ◽  
pp. 365-375
Author(s):  
M. E. Statsenko ◽  
A. M. Streltsova ◽  
M. V. Derevyanchenko

Objective. To assess the effect of antihypertensive therapy with ramipril and indapamide on the elasticity of the vascular wall of the large arteries in relation to insulin resistance and chronic low-intensity inflammation in patients with hypertension (HTN) and non-alcoholic fatty liver disease (NAFLD). Design and methods. An open prospective controlled study was conducted: 30 patients with HTN stage I–II in combination with NAFLD (Fatty Liver Index (FLI) > 60) at the age of 45–65 years were included. Washout period was scheduled 5–7 days before the baseline examination, followed by the prescription of one of the fixed combinations of ramipril (2,5/5 mg/day) and indapamide (0,625/1,25 mg), depending on the required dosage (Konsilar-D 24 VERTEX AO, Russia) and were given recommendations on lifestyle changes and weight loss. A clinical examination was carried out, indicators of daily blood pressure (BP) monitoring and central aortic pressure (CAP), pulse wave velocity (PWV), lipid and carbohydrate metabolism, chronic low-intensity inflammation and the severity of insulin resistance before and after treatment were analyzed. Results. After 24-week therapy with a fixed combination of ramipril and indapamide at an average dosage of 4,04 ± 1,24 and 1,01 ± 0,31 mg, respectively, 100% of patients with HTN and NAFLD achieved target BP levels. According to 24-hour BP monitoring data, a significant decrease in systolic BP (SBP) and diastolic BP (DBP) was observed, both in the daytime (Δ12 mm Hg, р = 0,0001; Δ5,5 mm Hg, р = 0,0019, respectively), and at night (Δ13,5 mm Hg, р = 0,0006; Δ5,5 mm Hg, р = 0,0054, respectively). In addition, there was a significant decrease in CAP in the daytime (SBPao p = 0,0011, DBPao p = 0,0022) and night hours (SBPao p = 0,0015, DBPao p = 0,00124), and a statistically significant decrease in augmentation index (day p = 0,0460, night p = 0,0182). When evaluating clinical data and bioimpedance measurements, a decrease in waist circumference (p = 0,0000), hip circumference (p = 0,0001), the proportion of subcutaneous (p = 0,0134) and visceral (p = 0,0019) fat was found, which may indicate a decrease in the severity of visceral obesity. Also, during treatment, there is a decrease in the severity of insulin resistance (and the concentration of tumor necrosis factor alpha (TNF-α) (p < 0,0001) and CRP (p = 0,0002) in blood plasma. Finally, fixed combination of ramipril and indapamide led to a significant decrease in vascular stiffness (p = 0,0166) and a decrease in the proportion of patients with PWV paradoxical test (p = 0,0320). Correlation analysis showed that increased stiffness of the large arteries in patients with HTN and NAFLD is closely related to insulin resistance and lipid metabolism. At the same time, after 24-week therapy by a fixed combination of ramipril and indapamide, a decrease in the vascular stiffness in patients with HTN and NAFLD significantly correlated with the TNF-α concentration. Conclusions. A 24-week therapy by the fixed combination of ramipril and indapamide iin patients with HTN and NAFLD is associated with the persistent decrease in BP and CAP, both during the day and at night. There was a decrease in the vascular rigidity in muscular arteries. The treatment and recommendations for changing the lifestyle are associated with the decrease in the severity of abdominal obesity and insulin resistance, as well as the decrease in the severity of low-intensity systemic inflammation in patients with HTN and NAFLD, and a significant correlation was established between a decrease in TNF-α and an increase in the vascular elasticity of muscle and elastic type arteries.


2008 ◽  
Vol 78 (1) ◽  
pp. 27-32 ◽  
Author(s):  
Suano de Souza ◽  
Silverio Amancio ◽  
Saccardo Sarni ◽  
Sacchi Pitta ◽  
Fernandes ◽  
...  

Objectives: To evaluate the frequency of non-alcoholic fatty liver disease, the retinol serum levels, lipid profile, and insulin resistance in overweight/obese children. To relate these biochemical variables with the risk of this disease in the population studied. Methods: The study was cross-sectional and prospective, with 46 overweight/obese school children (28 female, 18 male; mean age 8.6 years). The control group consisted of 45 children, paired by age and gender. Hepatic steatosis, evaluated by ultrasound, was classified as normal, mild, moderate, or severe. Also evaluated were serum retinol levels; thiobarbituric acid reactive substances; lipid profile; and fasting glucose and serum insulin levels, used for the calculation of the Homeostasis Model Assessment. Results: Hepatic ultrasound alterations were found in 56.5% and 48,9% of the overweight/obese and control group children, respectively. Presence of obesity was associated with high levels of triglycerides (OR = 4.6; P = 0.002). In the studied children, the risk of steatosis was related to a trend to a higher percentage of retinol inadequacy (OR = 2.8; p = 0.051); there was no association with thiobarbituric acid reactive substances, lipid profile, or insulin resistance. Conclusions: The high frequency of non-alcoholic fatty liver disease in both groups, evaluated by hepatic ultrasound, in low-socioeconomic level children, independent of nutritional condition and without significant association with insulin resistance, emphasizes that especially in developing countries, other risk factors such as micronutrient deficiencies (e.g. vitamin A) are involved.


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