Lycopene-Rich Extract from Red Guava (Psidium guajava L.) Decreases Plasma Triglycerides and Improves Oxidative Stress Biomarkers on Experimentally-Induced Dyslipidemia in Hamsters

This work assessed the effects of a 28-day treatment with lycopene-rich extract (LRE) from red guava fruit (Psidium guajava L.) on the lipid profile and oxidative stress in an experimental model of dyslipidemia. Male hamsters (116.5 ± 2.16 g) were fed with the AIN 93G diet containing casein (20%), coconut fat (13.5%) and cholesterol (0.1%). The animals were divided into four groups: normolipidemic control (standard feed; NC, n = 7); hypercholesterolemic control (HC, n = 7); LRE 25 mg/kg/day (LRE-25, n = 7) and LRE 50 mg/kg/day (LRE-50, n = 9). After treatment, plasma concentrations of triglycerides (TG), total cholesterol (TC), low-density lipoprotein (LDL) cholesterol (LDL-c), high-density lipoprotein (HDL) cholesterol (HDL-c), malondialdehyde (MDA-p) and myeloperoxidase (MPO), as well as erythrocytic superoxide dismutase (SOD-e) and the atherogenic index, were determined. Malondialdehyde (MDA-h), catalase (CAT), glutathione peroxidase (GPx) and superoxide dismutase (SOD-h) levels were assessed. Feed intake (FI) and weight gain (WG) were also determined. The LRE-25 group presented significantly lower TG levels and atherogenic index than did the HC group (p < 0.05). Both LRE-25 and LRE-50 groups presented lower levels of MDA-p and MPO than did the HC group (p < 0.05). LRE demonstrated a promising effect against dyslipidemia and oxidative stress.

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Relationship between atherogenic index and oxidative stress among patients presented with coronary artery disease in a tertiary care hospital

International Journal of Research in Pharmaceutical Sciences ◽

10.26452/ijrps.v11ispl4.4560 ◽

2020 ◽

Vol 11 (SPL4) ◽

pp. 2807-2813

Author(s):

Resmi C R ◽

Kedari G S R ◽

Deepa P K

Keyword(s):

Oxidative Stress ◽

Vitamin E ◽

Vitamin C ◽

Density Lipoprotein ◽

Atherogenic Index ◽

Enzymatic Antioxidants ◽

Oxidative Stress Markers ◽

Stress Markers ◽

Lipid Parameters ◽

And Oxidative Stress

CAD is recognized as a multifactorial disease that is influenced by environmental and genetic factors. This study aimed to evaluate the levels of lipid parameters, oxidative stress and antioxidant markers in subjects with CAD compared to their age & sex matched controls and to analyze the relationship between atherogenic Index and oxidative stress among them 62 clinically proved CAD patients and 62 healthy age and sex matched subjects without CAD were selected for this study. 5 ml of fasting venous blood was collected from all the subjects and investigations such as FPG, lipid profile, oxidative markers Malondialdehyde (MDA), F2 isoprostanes (F2iso) and antioxidants glutathione S-transferase (GST), superoxide dismutase (SOD), vitamin-C, vitamin-E were performed. This study showed that levels of lipid parameters total cholesterol (TC), triglycerides (TG), low density lipoprotein cholesterol (LDL-c) and AI were significantly higher whereas high density lipoprotein cholesterol (HDL-c) were significantly low in CAD patients compared to normal controls. Oxidative stress markers MDA and F2 Isoprostanes level were significantly high, whereas enzymatic antioxidants GST and SOD and non-enzymatic antioxidants Vitamin-C and Vitamin-E levels were significantly low in CAD patients. Oxidative stress markers were found to significantly influence the AI. Results of this study showed that oxidative stress markers F2iso and MDA and antioxidants GST, VIT-C and VIT-E are found to influence the atherogenic index significantly.

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Evaluation of the Effects ofPinus koraiensisNeedle Extracts on Serum Lipid and Oxidative Stress in Adults with Borderline Dyslipidemia: A Randomized, Double-Blind, and Placebo-Controlled Clinical Trial

Evidence-based Complementary and Alternative Medicine ◽

10.1155/2016/9594251 ◽

2016 ◽

Vol 2016 ◽

pp. 1-6

Author(s):

Hansongyi Lee ◽

Hyerang Kim ◽

Ryowon Choue ◽

Hyunjung Lim

Keyword(s):

Oxidative Stress ◽

Blood Pressure ◽

Superoxide Dismutase ◽

Low Density Lipoprotein ◽

Density Lipoprotein ◽

Blood Cholesterol ◽

Low Density ◽

Vldl Cholesterol ◽

Before And After ◽

And Oxidative Stress

Background.Dyslipidemia has been well-known as a common metabolic disorder contributing to cardiovascular disease. The aim of this study was to evaluate the effect of thePinus koraiensisneedle extracts (PKE) on the blood cholesterol and oxidative stress.Method.We conducted a 12-week randomized, double-blinded controlled trial to examine the effect of PKE on blood lipid profiles in adults with borderline dyslipidemia. Thirty-three eligible persons were recruited and randomly assigned into PKE (n=20) and placebo groups (n=13). Serum lipids including total cholesterol, low-density lipoprotein- (LDL-) cholesterol, high-density lipoprotein- (HDL-) cholesterol, very low-density lipoprotein- (VLDL-) cholesterol, and triglyceride were measured before and after trial. Serum insulin, glucose, and antioxidant indicators were also analyzed before and after trial and anthropometry and blood pressure were measured every 4 weeks.Results.After 12 weeks, PKE statically significant decreases in systolic blood pressure (p<0.05) and waist circumference (p<0.05) were observed. Also, VLDL-cholesterol significantly decreased (from24.4±10.0 mg/dL at baseline to18.4±4.1 mg/dL after 12 weeks) (p<0.05) and superoxide dismutase (SOD) increased (6.12±0.41 U/mL to9.06±0.62 U/mL) (p<0.01) in PKE group. However, after adjustment with WC, VLDL-cholesterol was not significant between groups (p=0.095) and while SOD remained significant between groups (p=0.013).Conclusion.The results show that PKE was effective in improving the superoxide dismutase in the individuals with borderline dyslipidemia.

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Insulin-Leptin Axis, Cardiometabolic Risk and Oxidative Stress in Elderly with Metabolic Syndrome

Experimental and Clinical Endocrinology & Diabetes ◽

10.1055/s-0043-123825 ◽

2018 ◽

Vol 126 (07) ◽

pp. 445-452 ◽

Cited By ~ 6

Author(s):

Daniela Gradinaru ◽

Husseina Khaddour ◽

Denisa Margina ◽

Anca Ungurianu ◽

Claudia Borsa ◽

...

Keyword(s):

Oxidative Stress ◽

Metabolic Syndrome ◽

Uric Acid ◽

Resistance Index ◽

Hdl Cholesterol ◽

Elderly Subjects ◽

Control Group ◽

Oxidative Stress Biomarkers ◽

The Metabolic Syndrome ◽

And Oxidative Stress

AbstractInsulin and leptin have an overlapping anorexigenic action as well as opposite effects on glucose and lipid metabolism. The study focuses on the biochemical and clinical relevance of new indices of insulin-leptin axis utilized in the study of the relationships between leptinemia, insulin sensitivity and oxidative stress, in elderly subjects with metabolic syndrome. We conducted clinical studies on elderly people with metabolic syndrome versus control subjects by creating new insulin-adipogenic indices, namely Insulin-to-Leptin Ratio (ILR) and Insulin-Adipogenic Resistance index (IAR-index). Inflammation and oxidative stress biomarkers evaluated were the high-sensitivity C-reactive protein (hsCRP), the advanced oxidation protein products (AOPP), and the serum antioxidant capacity measured as ferric reducing antioxidant potential (FRAP). The metabolic syndrome group showed significantly (p<0.01) lower levels of ILR and not significant (p=0.09) higher values of IAR-index, as compared to the control group. In metabolic syndrome subjects, the IAR-index was significantly positively correlated with uric acid (r=0.313, p<0.05), FRAP (r=0.347, p<0.05) and AOPP (r=0.677, p<0.01), and negatively correlated with HDL-cholesterol (r=− 0.340, p<0.05) as well as with the ratio FRAP/uric acid (r=− 0.315, p<0.05). ILR and IAR-index reflected the biological state of adipose and pancreatic β-cells and seem to depict the adipo-insular axis status related to metabolic and oxidative stress better than individual markers. Therefore, ILR and IAR-index could represent integrated high-potential biomarkers for disease and patient stratification.

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Antioxidants and Oxidative Stress in Children: Influence of Puberty and Metabolically Unhealthy Status

Antioxidants ◽

10.3390/antiox9070618 ◽

2020 ◽

Vol 9 (7) ◽

pp. 618

Author(s):

Azahara I. Rupérez ◽

María D. Mesa ◽

Augusto Anguita-Ruiz ◽

Esther M. González-Gil ◽

Rocío Vázquez-Cobela ◽

...

Keyword(s):

Oxidative Stress ◽

Linear Models ◽

Metabolic Diseases ◽

Low Density Lipoprotein ◽

Density Lipoprotein ◽

Endothelial Damage ◽

Normal Weight ◽

Oxidative Stress Biomarkers ◽

Stress Biomarkers ◽

And Oxidative Stress

Oxidative stress could help explain the relationship between childhood obesity and a metabolically unhealthy (MU) status. Moreover, puberty could also influence this relationship, since it entails physiological cardiometabolic changes. We aimed to evaluate plasma antioxidants and oxidative stress biomarkers in MU and metabolically healthy (MH) prepubertal and pubertal children and their associations with pro-inflammatory and endothelial damage biomarkers, taking puberty into account. A total of 1444 Spanish children aged 3–17 years (48.9% males, 66% prepubertal, 47.1% with obesity) were recruited. Blood pressure, anthropometric and biochemical parameters were measured, and children were categorized as having a MU or MH status according to risk factors. Retinol, carotenes, tocopherols, total antioxidant capacity (TAC), oxidized low-density lipoprotein and selected pro-inflammatory and endothelial damage biomarkers were analyzed. General linear models adjusted for age, sex, recruitment center and body mass index, partial correlations and stepwise linear regressions were performed. Lower carotenes and tocopherols levels were found in MU than in MH children. Plasma TAC was lower in prepubertal and higher in pubertal children with obesity compared to normal-weight children. Antioxidants and oxidative stress biomarkers showed novel associations with several pro-inflammatory and endothelial damage biomarkers, with pubertal differences, supporting the importance of considering both the antioxidant and oxidative stress status and puberty in the prevention of metabolic diseases in childhood.

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Protective effect of Rhus chinensis Mill. extract against liver cirrhosis in rats

Tropical Journal of Pharmaceutical Research ◽

10.4314/tjpr.v20i2.21 ◽

2022 ◽

Vol 20 (2) ◽

pp. 365-368

Author(s):

Zirong Pan ◽

Qiang Cheng ◽

Heyan Chen ◽

Longhai Lin ◽

Weijia Liao ◽

...

Keyword(s):

Oxidative Stress ◽

Superoxide Dismutase ◽

Liver Cirrhosis ◽

Protective Effect ◽

Rat Model ◽

Plasma Concentrations ◽

Alanine Transaminase ◽

Model Group ◽

Rhus Chinensis ◽

And Oxidative Stress

Purpose: To study the effect of Rhus chinensis Mill. extract (RCME) on diethylnitrosamine (DEN)-induced liver cirrhosis in rats. Methods: RCME was obtained by extracting the dried Rhus chinensis Mill. in water. Liver cirrhosis rat model was prepared by injecting with DEN once a week for 8 weeks. After 8th-week of RCME treatment, biochemical index and oxidative stress were determined in DEN-induced liver cirrhosis in rats. Results: Compared with model group, plasma concentrations of alanine transaminase (ALT, 125.3 ± 4.1 U/L) and aspartate aminotransferase (AST, 152.4 ± 3.5 U/L) decreased significantly (p < 0.01) in the 8th week. Rhus chinensis Mill. extract (RCME) significantly decreased malondialdehyde (MDA, 0.18 ± 0.02 umol/L) and superoxide dismutase (SOD, 0.76 ± 0.05 U/mg protein) in DEN-induced liver cirrhosis in rats (p < 0.01) when compared with model group. Conclusion: RCME protects against diethylnitrosamine-induced liver cirrhosis in rats. However, further investigations are required to ascertain the plant extract’s suitability for the clinical management of liver cirrhosis.

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Relationship between Higher Atherogenic Index of Plasma and Oxidative Stress of a Group of Patients Living with Sickle Cell Anemia in Cameroon

Advances in Hematology ◽

10.1155/2020/9864371 ◽

2020 ◽

Vol 2020 ◽

pp. 1-7 ◽

Cited By ~ 1

Author(s):

Landry Nguepnkep Kubong ◽

Prosper Cabral Nya Biapa ◽

Bernard Chetcha ◽

Nicolas Yanou-Njintang ◽

Vicky Jocelyne Moor Ama ◽

...

Keyword(s):

Oxidative Stress ◽

Lipid Profile ◽

Sickle Cell ◽

Sickle Cell Anemia ◽

Low Density Lipoprotein ◽

Density Lipoprotein ◽

Atherogenic Index ◽

Atherogenic Index Of Plasma ◽

Spectrophotometric Methods ◽

And Oxidative Stress

Dyslipidemia is highly prevalent in sickle cell anemia (SCA) patients and is one of the major risk factors for cardiovascular diseases induced by oxidative stress in Africa. The aim of this research was to investigate the correlation between higher atherogenic index of plasma (API) and oxidative stress in a group of patients living with SCA in Cameroon. Methods. A group of 85 homozygote SS patients (male and female) were enrolled at the Central hospital of Yaounde in Cameroon between May and October 2017. After informed consent through the signature of a consent form was obtained, the plasma was collected to determine the lipid profile while the lysate solution of RBC was used to explore some markers of oxidative stress using spectrophotometric methods. Results. Among the 85 patients included in our study, the mean age was 30 ± 5 years and the female to male ratio was 0.97. The majority of the patients (52–81%) had dyslipidaemia, and 22.4% of the patients demonstrated a higher level of atherogenic index of plasma. The patients with a higher level of total cholesterol (TC) (>240 mg/dl) and low-density lipoprotein (LDL-C) (>159 mg/dl) had at least 1,334 fold of malondialdeheyde (MDA) concentration than those with normal level. Also in the same patients, the higher atherogenic plasmatic index (API) significantly (p<0.05) increased with the concentration of MDA. Except HDL-C, the other parameters of lipid profile had significant (p<0.05) correlation with reduced glutathione (GsH) and total antioxidant capacity (TAC). The significant (p<0.05) and linear regression was found between the increased MDA and higher API. Conclusion. Dyslipidemia increases oxidative stress and higher API which leads to coronary vascular disease in patients with SCA.

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Selenium levels and glutathione peroxidase activity in patients with ataxia-telangiectasia: association with oxidative stress and lipid status biomarkers

Orphanet Journal of Rare Diseases ◽

10.1186/s13023-021-01732-5 ◽

2021 ◽

Vol 16 (1) ◽

Author(s):

Itana Gomes Alves Andrade ◽

Fabíola Isabel Suano-Souza ◽

Fernando Luiz Affonso Fonseca ◽

Carolina Sanchez Aranda Lago ◽

Roseli Oselka Saccardo Sarni

Keyword(s):

Oxidative Stress ◽

Glutathione Peroxidase ◽

Peroxidase Activity ◽

Oxidized Ldl ◽

Reference Value ◽

Glutathione Peroxidase Activity ◽

Oxidative Stress Biomarkers ◽

Apo B ◽

Lipid Status ◽

And Oxidative Stress

Abstract Introduction Ataxia-Telangiectasia (A-T) is a multi-system disorder that may be associated with endocrine changes, oxidative stress in addition to inflammation. Studies suggest that selenium is a trace element related to protection against damage caused by oxidative stress. Objective To describe the plasma levels of selenium and erythrocyte glutathione peroxidase activity in A-T patients and to relate them to oxidative stress and lipid status biomarkers. Methods This is a cross-sectional and controlled study evaluating 22 A-T patients (age median, 12.2 years old) matched by gender and age with 18 healthy controls. We evaluated: nutritional status, food intake, plasma selenium levels, erythrocyte glutathione peroxidase activity, lipid status, inflammation and oxidative stress biomarkers. Results Adequate levels of selenium were observed in 24/36 (66.7%) in this evaluated population. There was no statistically significant difference between the groups in selenium levels [47.6 μg/L (43.2–57.0) vs 54.6 (45.2–62.6) μg/dL, p = 0.242]. Nine of A-T patients (41%) had selenium levels below the reference value. The A-T group presented higher levels of LDL-c, non-HDL-c, oxidized LDL, Apo B, Apo-B/Apo-A-I1, LDL-c/HDL-c ratio, malondialdehyde [3.8 µg/L vs 2.8 µg/L, p = 0.029] and lower Apo-A-I1/HDL-c and glutathione peroxidase activity [7300 U/L vs 8686 U/L, p = 0.005]. Selenium levels were influenced, in both groups, independently, by the concentrations of oxidized LDL, malonaldehyde and non-HDL-c. The oxidized LDL (AUC = 0.849) and ALT (AUC = 0.854) were the variables that showed the greatest discriminatory power between groups. Conclusion In conclusion, we observed the presence of selenium below the reference value in nearly 40% and low GPx activity in A-T patients. There was a significant, inverse and independent association between selenium concentrations and oxidative stress biomarkers. Those data reinforce the importance of assessing the nutritional status of selenium in those patients.

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Role of Baicalin and Liver X Receptor Alpha in the Formation of Cholesterol Gallstones in Mice

Gastroenterology Research and Practice ◽

10.1155/2020/1343969 ◽

2020 ◽

Vol 2020 ◽

pp. 1-13

Author(s):

Geng Chen ◽

Shuodong Wu

Keyword(s):

Oxidative Stress ◽

Bile Acid ◽

Cholesterol Metabolism ◽

Density Lipoprotein ◽

Liver X Receptor ◽

Cholesterol Gallstones ◽

Receptor Alpha ◽

Lithogenic Diet ◽

Liver X Receptor Alpha ◽

And Oxidative Stress

This study was aimed at investigating the effect of baicalin on experimental cholesterol gallstones in mice. The mouse gallstone model was induced by feeding with a lithogenic diet, and cholesterol stones were found in the gallbladder. The lithogenic diet caused elevation of triglycerides, cholesterol, and low-density lipoprotein concentrations and descent of high-density lipoprotein concentration in serum. Hyperplasia and inflammatory infiltration were observed in the gallbladder wall of lithogenic diet-fed mice. We also found the increase of cholesterol content and the decrease of bile acid in bile. Real-time PCR and western blot results demonstrated that the expression levels of two enzymes (cholesterol 7α-hydroxylase (CYP7a1) and sterol 12α-hydroxylase (CYP8b1)) to catalyze the synthesis of bile acid from cholesterol were decreased and that two cholesterol transporters (ATP-binding cassette transporter G5/G8 (ABCG5/8)) were increased in the liver of lithogenic diet-fed mice. The lithogenic diet also led to enhanced activity of alanine aminotransferase and aspartate aminotransferase in serum; increased concentrations of tumor necrosis factor-α, interleukin- (IL-) 1β, IL-6, and malondialdehyde; and decreased superoxide dismutase activity in the liver, suggesting inflammatory and oxidative stress. In addition, liver X receptor alpha (LXRα) was increased in the liver. After gavage of baicalin, the lithogenic diet-induced gallstones, hyperlipidemia, gallbladder hyperplasia, inflammation, and oxidative stress in liver and cholesterol metabolism disorders were all alleviated to some degree. The expression of LXRα in the liver was inhibited by baicalin. In addition, the LXRα agonist T0901317 aggravated lithogenic diet-induced harmful symptoms in mice, including the increase of gallstone formation, hyperlipidemia, hepatic injury, inflammation, and oxidative stress. In conclusion, we demonstrated that baicalin played a protective role in a lithogenic diet-induced gallstone mouse model, which may be mediated by inhibition of LXRα activity. These findings may provide novel insights for prevention and therapy of gallstones in the clinic.

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