Репозиторий Университета

© 2019, Springer Science+Business Media, LLC, part of Springer Nature. This study investigated different dietary strategies, high-fat (HFd), or standard diet (Sd) alone or in combination with standardized Aronia melanocarpa extract (SAE), as a polyphenol-rich diet, and their effects on lipids and fatty acids (FA) in rats with metabolic syndrome (MetS). Wistar albino rats were randomly divided into two groups: healthy and rats with MetS, and then depending on dietary patterns on six groups: healthy rats fed with Sd, healthy rats fed with Sd and SAE, rats with MetS fed with HFd, rats with MetS fed with HFd and SAE, rats with MetS fed with Sd, and rats with MetS fed with Sd and SAE. 4 weeks later, after an overnight fast (12–14 h), blood for determination of total cholesterol (TC), triglycerides (TG), high-density lipoprotein (HDL), low-density lipoprotein (LDL), index of lipid peroxidation (measured as TBARS), and FA was collected. Increased FA and lipid concentration found in MetS rats were reduced when changing dietary habits from HFd to Sd with or without SAE consumption. Consumption of SAE slightly affects the FA profiles, mostly palmitoleic acid in healthy rats and PUFA in MetS + HFd rats. Nevertheless, in a high-fat diet, SAE supplementation significantly decreases n-6/n-3 ratio, thereby decreasing systemic inflammation. Further researches are warranted to confirm these effects in humans.

© 2018 Limited Liability Company KlinMed Consulting. All Rights Reserved. Purpose: to assess prevalence of dyslipidemia in patients with ischemic heart disease (IHD) older than 75 years as well as to evaluate possible associations between serum lipids and various cardiovascular and other diseases in these patients. Methods: We enrolled in this cross sectional study 555 hospitalized IHD patients aged 75-98 years (mean age 86.8 years, 74.5% women). Levels of lipids (total cholesterol [TC], triglycerides [TG], low and high-density lipoprotein cholesterol [LDLC, HDLC]) were measured by enzyme method on the biochemistry analyzer Konelab 60i. Results: Elevated TC; hypertriglyceridemia and elevated LDLC were observed in 13.3, 10.4 and 26.3% of patients, respectively. In the majority of patients severity of dyslipidemia was mild. With increasing age serum levels of TC and LDLC decreased. Negative correlation between TC level and patient's age was significant (r= -0.13; p=0.001). Mean TC level was 5.43, 5.0 and 4.7 mmol/l in patients aged <80 (group 1), 80-89 (group 2), and ≥90 (group 3) years, respectively (p=0.001 for differences between groups 1-and 3). Similar results were registered in respect of LDLC: mean LDLC level was 3.7 and 2.7 mmol/l in groups 1 and 3, respectively (p=0.004). Mean concentrations of all lipids in women were higher than in men: TC 5.1 vs 4.5 (p<0.0001), LDLC 3.1 vs 2.5 (p=0.0002), HDLC - 1.26 vs 1.17 mmol/l (p=0.01). Lower lipids levels (especially those of TC) were significantly associated with clinically significant heart failure (p<0.0001) and atrial fibrillation (p<0.0001). Higher TC and TG correlated positively with higher systolic and diastolic blood pressure (p=0.001). Significant positive correlations existed between TG and glucose concentration (p<0.0001) as well as between TG and uric acid level (p=0.001). Higher TG and lower HDLC levels were registered in patients with higher creatinine level (p=0.001 and 0.0003, respectively). Only 11.4% of study patients received statins. Conclusion: The study results evidence for considerable peculiarities of lipid profile in the very elderly patients with IHD. Significant associations between dyslipidemia and a number of diseases were also revealed.

© 2018 Izdatel'stvo Meditsina. All rights reserved. The purpose of the study was to investigate gender features of abnormalities of blood serum lipid composition and their relationship with clinical and functional manifestations in patients with chronic kidney disease (CKD). The study covered patients with CKD at pre-dialysis stage of disease, aged 17-71 years (average age 37.3±13.0 years). All patients underwent complex clinical and laboratory examination. Depending on gender, the sample (n = 417) was divided into 2 groups: group I - males (n = 277) and group II-females (n = 140). Blood sampling was implemented using venipuncture of ulnar vein after 12-14 hours of fasting in morning time. The lipid analysis of blood serum was performed using the auto-analyzer "Respons 920" (Germany), including detection of total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C) and triglycerides (TG). The atherogenic index (AI) was calculated according formula: AI = (TC - HDL-C)/HDL-C. At analysis of the results of lipidogram, the levels of TC (hypercholesterolemia), LDL-C (hyper-beta-cholesterolemia) and TG (hypertriglyceridemia) were considered as increased when their values were ≥5.0 mmol/L, ≥3.0 mmol/L and > 1.7 mmol/L respectively. The level of HDL cholesterol (hypo-alpha-cholesterolemia) was considered as decreased when its concentration was ≤1.0 mmol/L in males and ≤1.2 mmol/L in females. In the group of male patients, hypo-alpha-cholesterolemia was detected in 135 patients (48.7%), hypertriglyceridemia - in 162 (58.4%), and average value of atherogenic index was significantly higher - 3.49 (2.43-5.08) as compared with 3.12 (2.12-3.74) in female patients (p=0.001). The laboratory signs of anemia were significantly more frequent in group of females - 53 (37.8%) as compared with 63 (22.7%) than in males (p = 0.001). In males, average values of HDL cholesterol and total serum protein were significantly lower (1.07 ± 0.44 mmol/L vs. 1.23 ± 0.42, p = 0.000 and 53.3 ± 14.6 g/L vs. 57.4 ± 11.9 g/L. p = 0.007, respectively. The levels of TG - 1.92 (1.23-2.74) mmol/L vs. 1.85 (1.04-2.37);p = 0.034], sodium (140.3 ± 6.20 mmol/L vs. 138.3 ± 6.01 mmol/L, p = 0.010) and uric acid in blood serum were significantly higher (0.38 ± 0,09 mmol/L vs. 0.34 ± 0.01 mmol/L, p = 0.003) as compared with females. In the group II (females), a noticeable slowing of the glomerular filtration rate (GFR) - 68,4 (43,6-98,1) ml/min vs. 87,6 (55,0-117,6) ml/min; (p = 0.001) was detected as compared with group I (males). Among male patients, a reliably significant positive relationship was established between TC and BMI, level of diastolic blood pressure and proteinuria; LDL cholesterol level and proteinuria; concentration of TG - and BMI, level of diastolic blood pressure and level of proteinuria. No correlation was established between the concentration of HDL-cholesterol and aforementioned laboratory markers of CKD. In contrast with males, in females, TC demonstrated an inverse relationship with the concentration of Hb, values of GFR and proteinuria, and level of HDL cholesterol - with indices of BMI, thrombocytes and uric acid of blood serum. In females a positive relationship was established between LDL cholesterol and level of diastolic blood pressure, GFR and daily proteinuria, and also between concentration of serum TG and volume of daily proteinuria and BMI. In general group, a reliable positive relationship was detected between TC and BMI and proteinuria, between LDL-C level and proteinuria, and between TG concentration and BMI, level of diastolic blood pressure, sodium content and proteinuria. The negative relationship was established between concentration of HDL cholesterol and BMI and uric acid in blood plasma, and TG level with Hb concentration. In male patients with CKD at pre-dialysis stage of disease, decreasing of level of HDL cholesterol was established as an increased concentration of TG and increasing atherogenic index. The content of triglyceride of blood serum is closely related to body mass index, level of diastolic blood pressure and proteinuria. In females, slowing of glomerular filtration rate is accompanied by development of anemia and atherogenic dyslipidemia.