Lipid status and oxidative stress in menopausal women with obstructive apnea syndrome

Aim: to assess lipid profile, lipid peroxidation and antioxidant system parameters in peri - and postmenopausal women with obstructive sleep apnea syndrome (OSAS). Materials and methods. 37 perimenopausal women and 43 postmenopausal ones were examined. OSAS diagnosis was made on the basis of the clinical picture and the polysomnography results. In perimenopause, the main group consisted of 18 women, in postmenopausal women - 17. All comparison groups are comparable by age and body mass index. Lipid profile, lipid peroxidation and antioxidant system parameters by spectrophotometric methods were determined. Non - parametric criteria were used to analyze the group differences for the independent samples. Results and discussion. The increase of total cholesterol (TC) and low - density lipoprotein cholesterol (LDL-C) levels were observed in perimenopausal women with OSAS as compared to control. The increase of TC, triacylglycerol (TG), LDL-C, very - low - density lipoprotein cholesterol (VLDL-C) levels and decrease of high - density lipoprotein cholesterol (HDL-D) level were found in postmenopausal women with OSAS as compared to control. Accumulation of ketodienes and conjugated trienes in perimenopausal women with OSAS and thiobarbituric acid reactants with a decrease of total antioxidant activity of blood serum in postmenopausal women with OSAS as compared to control was observed. Moreover, postmenopausal women with OSAS have a higher lipid peroxidation substrates and diene conjugates levels with a lower α-tocopherol level and total antioxidant activity compared with perimenopausal patients.The integral indicator of oxidative stress assessment indicates an imbalance in the lipid peroxidation and antioxidant system in menopausal women with OSAS. Conclusion. The results obtained indicate a violation of lipid metabolism and the development of oxidative stress in patients with OSAS. This is most pronounced in the postmenopause due to the aggravation of the pathological condition.

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Effect of Antioxidant Mineral Elements Supplementation in the Treatment of Hypertension in Albino Rats

Oxidative Medicine and Cellular Longevity ◽

10.1155/2012/134723 ◽

2012 ◽

Vol 2012 ◽

pp. 1-8 ◽

Cited By ~ 3

Author(s):

S. A. Muhammad ◽

L. S. Bilbis ◽

Y. Saidu ◽

Y. Adamu

Keyword(s):

Oxidative Stress ◽

Antioxidant Activities ◽

Low Density Lipoprotein ◽

Density Lipoprotein ◽

Lipoprotein Cholesterol ◽

Very Low Density Lipoprotein ◽

Low Density ◽

Low Density Lipoprotein Cholesterol ◽

Treatment Of Hypertension ◽

Total Antioxidant

Oxidative stress has been implicated in various pathologies, including hypertension, atherosclerosis, diabetes, and chronic renal disease. The current work was designed with the aim of investigating the potentials of antioxidants copper, manganese, and zinc in the treatment of hypertension in Wistar rats. The rats were fed 8% NaCl diet for 5 weeks and treatment with supplements in the presence of the challenging agent for additional 4 weeks. The supplementation significantly decreased the blood pressure as compared with hypertensive control. The result also indicated significant decreased in the levels of total cholesterol, triglyceride, low-density lipoprotein cholesterol and very low-density lipoprotein cholesterol, malondialdehyde, insulin and increase in the high-density lipoprotein cholesterol, total antioxidant activities, and nitric oxide of the supplemented groups relative to the hypertensive control. The average percentage protection against atherogenesis indicated 47.13 ± 9.60% for all the supplemented groups. The mean arterial blood pressure showed significant positive correlation with glucose, total cholesterol, triglyceride, low-density lipoprotein cholesterol, very low-density lipoprotein cholesterol, atherogenic index, insulin resistance and malondialdehyde while high density lipoprotein-cholesterol and total antioxidant activities showed negative correlation. The result therefore indicated strong relationship between oxidative stress and hypertension and underscores the role of antioxidant minerals in reducing oxidative stress, dyslipidemia, and insulin resistance associated with hypertension.

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Evaluation of Oxidative Stress, Antioxidant and Thyroid Hormone Status in Patients with Diabetes Mellitus

Journal of Medicine ◽

10.3329/jom.v10i2.2816 ◽

1970 ◽

Vol 10 (2) ◽

pp. 60-66 ◽

Cited By ~ 4

Author(s):

P Pasupathi ◽

V Chandrasekar ◽

U Senthil Kumar

Keyword(s):

Oxidative Stress ◽

Lipid Peroxidation ◽

Thyroid Hormones ◽

Low Density Lipoprotein ◽

Density Lipoprotein ◽

Lipoprotein Cholesterol ◽

Diabetic Patients ◽

Low Density Lipoprotein Cholesterol ◽

Hormone Status ◽

Patients With Diabetes

Oxidative stress is currently suggested as mechanism underlying diabetes and diabetic complications. The aim of the study was to evaluate the magnitude of oxidative stress in patients with diabetes by measuring the lipid peroxidation as well as the status of the antioxidant defense system, thyroid hormones status and other biochemical variables. The study population consisted of 100 subjects divided into two groups viz. diabetic (n=50) and healthy controls (n=50). Changes in the levels of lipid peroxidation and antioxidants and thyroid hormones status were determined in diabetic and non-diabetic subjects. The level of thiobarbituric acid reactive substances (TBARS) was found to be increased significantly in diabetic patients compared to healthy controls. On the other hand, the activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione-S-transferase (GST), reduced glutathione (GSH), vitamin A, vitamin E and vitamin C were found to be decreased significantly in diabetics when compared to control subjects. We also noticed a marked increase in serum total cholesterol, triglyceride, low-density lipoprotein cholesterol (LDL-C), very low-density lipoprotein cholesterol (VLDL-C), and decrease in highdensity lipoprotein cholesterol (HDL-C), total protein and albumin in diabetic patients. The level of TSH was significantly decreased whereas the levels of T4 and FT4 were significantly increased in diabetic patients than the control subjects. However, the T3 and FT3 levels did not differ significantly between groups. Our findings indicate that changes in oxidant and antioxidant equilibrium will have biological and possibly pathological role in the development of secondary complications. It also demonstrate that detection of thyroid hormone status in the early stage of the disease will help the patients to improve quality of life and reduce the morbidity rate. Key Words: Diabetes mellitus, Oxidative stress, Lipid peroxidation, Antioxidant status, Thyroid hormones. doi: 10.3329/jom.v10i2.2816 J MEDICINE 2009; 10 : 60-66

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Association among age, gender, menopausal status and small dense low-density lipoprotein cholesterol: a cross-sectional study

BMJ Open ◽

10.1136/bmjopen-2020-041613 ◽

2021 ◽

Vol 11 (2) ◽

pp. e041613

Author(s):

Toshihide Izumida ◽

Yosikazu Nakamura ◽

Yukihiro Sato ◽

Shizukiyo Ishikawa

Keyword(s):

Postmenopausal Women ◽

Low Density Lipoprotein ◽

Menopausal Status ◽

Density Lipoprotein ◽

Premenopausal Women ◽

Cross Sectional Study ◽

Lipoprotein Cholesterol ◽

Low Density ◽

Low Density Lipoprotein Cholesterol ◽

Cross Sectional

ObjectivesSmall dense low-density lipoprotein cholesterol (sdLDL-C) might be a better cardiovascular disease (CVD) indicator than low-density lipoprotein cholesterol (LDL-C); however, details regarding its epidemiology remain elusive. The present study aimed at evaluating the association between the demographic factors, such as age, gender and menopausal status, and sdLDL-C levels and sdLDL-C/LDL-C ratio in the Japanese population.DesignThis was a cross-sectional study.Setting13 rural districts in Japan, 2010–2017.ParticipantsThis study included 5208 participants (2397 men and 2811 women), who underwent the health mass screening that was conducted in accordance with the medical care system for the elderly and obtained informed consent for this study.ResultsIn total, 517 premenopausal women (mean age ±SD, 45.1±4.2 years), 2294 postmenopausal women (66.5±8.8 years) and 2397 men (64.1±11.2 years) were analysed. In men, the sdLDL-C levels and sdLDL-C/LDL-C ratio increased during younger adulthood, peaked (36.4 mg/dL, 0.35) at 50–54 years, and then decreased. In women, relatively regular increasing trends of sdLDL-C level and sdLDL-C/LDL-C ratio until approximately 65 years (32.7 mg/dL, 0.28), followed by a downward or pleated trend. Given the beta value of age, body mass index, fasting glucose and smoking and drinking status by multiple linear regression analysis, standardised sdLDL-C levels and sdLDL-C/LDL-C ratio in 50-year-old men, premenopausal women and postmenopausal women were 26.6, 22.7 and 27.4 mg/dL and 0.24, 0.15 and 0.23, respectively. The differences between premenopausal and postmenopausal women were significant (p<0.001).ConclusionsSdLDL-C and sdLDL-C/LDL-C ratios showed different distributions by age, gender and menopausal status. A subgroup-specific approach would be necessary to implement sdLDL-C for CVD prevention strategies, fully considering age-related trends, gender differences and menopausal status.

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Karate Training Improves Metabolic Health in Overweight and Obese Adolescents: A Randomized Clinical Trial

Pediatric Exercise Science ◽

10.1123/pes.2020-0193 ◽

2021 ◽

pp. 1-11

Author(s):

Fabricio de Souza ◽

Luciano Acordi da Silva ◽

Gisele Santinoni Ferreira ◽

Márcia Mendonça Marcos de Souza ◽

Franciane Bobinski ◽

...

Keyword(s):

Oxidative Stress ◽

Low Density Lipoprotein ◽

Density Lipoprotein ◽

Overweight And Obesity ◽

Lipoprotein Cholesterol ◽

Psychological Interventions ◽

Long Term Effects ◽

Low Density Lipoprotein Cholesterol ◽

Stress Markers

Purpose: This study evaluated the effects of 12 weeks of karate training on cardiometabolic parameters, oxidative stress, and inflammation in adolescents with overweight and obesity. Method: Seventy adolescents were randomized into 2 groups: control received nutritional and psychological interventions once a week for 12 weeks, and treatment received nutritional and psychological interventions once a week, plus 3 karate sessions per week, for 12 weeks. The main outcome measure was improvement in cardiometabolic parameters, oxidative stress, and inflammation. Results: After the intervention period, the treatment group showed a reduction in resting heart rate (77.86 [10.89]), high-density lipoprotein cholesterol (40.86 [8.31]), and triglycerides (75.18 [32.29]) and an increase in low-density lipoprotein cholesterol (95.64 [42.53]) in relation to pretraining. Regarding oxidative stress markers, there was a reduction in protein carbonylation (0.07 [0.06]) and nitric oxide (1.39 [1.11]) and an increase in superoxide dismutase (0.68 [0.31]) and glutathione (0.11 [0.08]) compared with pretraining. With respect to inflammation, adiponectin increased (14.54 [5.36]) after the intervention when compared with preintervention. Conclusion: The study concluded that the intervention may improve cardiometabolic parameters, oxidative stress, and inflammation in adolescents with overweight and obesity. Long-term effects need to be evaluated.

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Effects of Age, Gender, and Menopausal Status on Small Dense Low-Density Lipoprotein Cholesterol and Low-Density Lipoprotein Cholesterol Fractions; JMS-II Cohort Study

10.21203/rs.3.rs-34566/v1 ◽

2020 ◽

Author(s):

Toshihide Izumida ◽

Yosikazu Nakamura ◽

Yukihiro Sato ◽

Shizukiyo Ishikawa

Keyword(s):

Cohort Study ◽

Postmenopausal Women ◽

Low Density Lipoprotein ◽

Menopausal Status ◽

Density Lipoprotein ◽

Lipoprotein Cholesterol ◽

Low Density ◽

Low Density Lipoprotein Cholesterol ◽

Age Related ◽

Effect Of Age

Abstract Background:Small dense low-density lipoprotein cholesterol (sdLDL-C) might be a better cardiovascular disease (CVD) indicator than low-density lipoprotein cholesterol (LDL-C); however, details regarding its epidemiology remain elusive. The present study aimed at evaluating the effect of age, gender, and menopausal status on sdLDL-C levels and sdLDL-C/LDL-C ratio in the Japanese population.Methods:We examined the baseline cross-sectional data from the Jichi Medical School-II Cohort Study, including 5,208 participants (2,397 men and 2,811 women). To assess age-related trends, the sdLDL-C and sdLDL-C/LDL-C ratios were plotted against gender. We evaluated the effect of age and menopausal status using multiple linear regression analysis.Results:We observed that in men, the sdLDL-C levels and sdLDL-C/LDL-C ratio increased during younger adulthood, peaked at 50–54 years, and then decreased. In women, we observed relatively regular increasing trends of sdLDL-C level and sdLDL-C/LDL-C ratio until approximately 65 years, followed by a downward or pleated trend. The crossover of sdLDL-C levels for the genders occurred at 70–74 years, but we could not observe any sdLDL-C/LDL-C ratio crossover. Standardized sdLDL-C levels and sdLDL-C/LDL-C ratio in 50-year old men, premenopausal women, and postmenopausal women were 26.6, 22.7, and 27.4 mg/dL and 0.24, 0.15, and 0.23, respectively. The differences between premenopausal and postmenopausal women were significant (P<0.001).Conclusions:sdLDL-C and sdLDL-C/LDL-C ratios show different distributions by age, gender, and menopausal status with trends different from other lipids. A subgroup-specific approach would be necessary to implement sdLDL-C for CVD prevention strategies, fully considering age-related trends, gender differences, and menopausal status.

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Reversal of age-associated oxidative stress in mice by PFT, a novel kefir product

International Journal of Immunopathology and Pharmacology ◽

10.1177/2058738420950149 ◽

2020 ◽

Vol 34 ◽

pp. 205873842095014

Author(s):

Mamdooh Ghoneum ◽

Shaymaa Abdulmalek ◽

Deyu Pan

Keyword(s):

Oxidative Stress ◽

Low Density Lipoprotein ◽

Redox Homeostasis ◽

Density Lipoprotein ◽

Antioxidant Enzyme Activities ◽

Protective Effects ◽

Oxidative Stress Biomarkers ◽

Age Related ◽

Total Antioxidant ◽

The Brain

Introduction: Oxidative stress is a key contributor to aging and age-related diseases. In the present study, we examine the protective effects of PFT, a novel kefir product, against age-associated oxidative stress using aged (10-month-old) mice. Methods: Mice were treated with PFT orally at a daily dose of 2 mg/kg body weight over 6 weeks, and antioxidant status, protein oxidation, and lipid peroxidation were studied in the brain, liver, and blood. Results: PFT supplementation significantly reduced the oxidative stress biomarkers malondialdehyde (MDA) and nitric oxide; reversed the reductions in glutathione (GSH) levels, total antioxidant capacity (TAC), and anti-hydroxyl radical (AHR) content; enhanced the antioxidant enzyme activities of glutathione peroxidase (GPx), catalase (CAT), and superoxide dismutase (SOD); inhibited the liver enzyme levels of aspartate aminotransferase (AST) and alanine aminotransferase (ALT); significantly reduced triglyceride (TG), total cholesterol (TC), and low density lipoprotein (LDL) levels; and significantly elevated high density lipoprotein (HDL) levels. Interestingly, PFT supplementation reversed the oxidative changes associated with aging, thus bringing levels to within the limits of the young control mice in the brain, liver, and blood. We also note that PFT affects the redox homeostasis of young mice and that it is corrected post-treatment with PFT. Conclusion: Our findings show the effectiveness of dietary PFT supplementation in modulating age-associated oxidative stress in mice and motivate further studies of PFT’s effects in reducing age-associated disorders where free radicals and oxidative stress are the major cause.

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Increased low-density lipoprotein cholesterol level is associated with non-vertebral fractures in postmenopausal women

Endocrine ◽

10.1007/s12020-014-0292-0 ◽

2014 ◽

Vol 48 (1) ◽

pp. 279-286 ◽

Cited By ~ 28

Author(s):

Mika Yamauchi ◽

Toru Yamaguchi ◽

Kiyoko Nawata ◽

Ken-ichiro Tanaka ◽

Shin Takaoka ◽

...

Keyword(s):

Postmenopausal Women ◽

Cholesterol Level ◽

Vertebral Fractures ◽

Low Density Lipoprotein ◽

Density Lipoprotein ◽

Lipoprotein Cholesterol ◽

Low Density ◽

Low Density Lipoprotein Cholesterol

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Evaluation of Salivary and Serum Total Antioxidant Capacity and Lipid Peroxidation in Postmenopausal Women

International Journal of Dentistry ◽

10.1155/2020/8860467 ◽

2020 ◽

Vol 2020 ◽

pp. 1-5

Author(s):

Fatemeh Zovari ◽

Hadi Parsian ◽

Ali Bijani ◽

Ameneh Moslemnezhad ◽

Atena Shirzad

Keyword(s):

Oxidative Stress ◽

Lipid Peroxidation ◽

Antioxidant Capacity ◽

Postmenopausal Women ◽

Total Antioxidant Capacity ◽

Premenopausal Women ◽

Control Group ◽

Antioxidant Power ◽

Whole Saliva ◽

Total Antioxidant

Objective. In menopause, reduction of estrogen hormone affects oxidative stress process in serum. Oxidative stress in saliva plays a significant role in the pathogenesis of oral diseases. The aim of this study was to investigate the total antioxidant capacity and lipid peroxidation in the serum and saliva of premenopausal and postmenopausal women. Methods. In this case control study, 50 postmenopausal women (case group) and 48 premenopausal women (control group) were selected. The unstimulated whole saliva and serum of the postmenopausal and premenopausal women were collected. The total antioxidant capacity (TAC) of the saliva and serum was measured by ferric reducing antioxidant power (FRAP). Also, malondialdehyde (MDA) was measured by thiobarbituric acid reactive substance (TBARS) method for serum and saliva. Then, the obtained data were analyzed by SPSS 17, whereby Mann–Whitney test and Spearman’s correlation test were used. P < 0.05 was considered statistically significant. Results. The postmenopausal group had significantly lower mean serum TAC and higher mean serum MDA than the control group ( P < 0 < 001 and P < 0.01 , respectively). The mean salivary TAC and MDA, however, did not differ significantly between the case and control group ( P = 0.64 and P = 0.08 , respectively). Conclusion. In postmenopausal women, with elevation of serum MDA and reduction of serum TAC, the extent of serum oxidative stress grows, but MDA and TAC levels of saliva do not change.

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The effect of a fibre extract from the red seaweed, Palmaria palmata, on lipid metabolism and inflammation in healthy adults

Proceedings of The Nutrition Society ◽

10.1017/s0029665120006400 ◽

2020 ◽

Vol 79 (OCE2) ◽

Author(s):

Zoe Irwin ◽

Emeir M. McSorley ◽

Mary M. Slevin ◽

Lisa Rowan ◽

Paul McMillen ◽

...

Keyword(s):

Oxidative Stress ◽

Lipid Metabolism ◽

Low Density Lipoprotein ◽

Density Lipoprotein ◽

Lipoprotein Cholesterol ◽

Palmaria Palmata ◽

Low Density ◽

Low Density Lipoprotein Cholesterol ◽

Markers Of Inflammation ◽

And Oxidative Stress

AbstractEvidence from observational studies indicates that seaweed consumption may reduce the risk of non-communicable diseases such as cardiovascular disease, type two diabetes, and obesity. Accumulating evidence from in vitro and animal studies suggest seaweed have antihyperlipidemic, anti-inflammatory and antioxidant properties which may in part be attributed to the high content of soluble dietary fibre in seaweeds. The viscosity of seaweed fibres is suggested to mediate antihyperlipdiemic effects via the alteration of lipid/bile acid absorption kinetics to decrease low-density lipoprotein cholesterol (LDL). Thus, there is a need to evaluate the efficacy of seaweed derived dietary fibre in the management of dyslipidemia. Therefore, the aim of this study was to determine the effect of a fibre rich extract from Palmaria palmata on the lipid profile as well as markers of inflammation and oxidative stress in healthy adults. A total of 60 healthy participants (30 male and 30 female) aged 20 to 58 years, were assigned to consume the Palmaria palmata fibre extract (5g/day), Synergy-1 and the placebo (maltodextrin) for a duration of 4 weeks with a minimum 4 week washout between each treatment in a double blind, randomised crossover study conducted over 5 months. Fasting concentrations of cholesterol, triglycerides and high-density lipoprotein cholesterol (HDL) were analysed and low-density lipoprotein cholesterol (LDL) and LDL: HDL ratio was calculated. C-reactive protein (CRP) and Ferric Reducing Ability of Plasma (FRAP) were analysed as markers of inflammation and oxidative stress, respectively. Supplementation for 4 weeks with Palmaria palmata resulted in favourable changes to lipid profiles with a reduced LDL:HDL ratio; however intention-to-treat univariate ANCOVA identified no significant difference between the treatment groups over time on any of the lipid profile markers. A non-significant increase in CRP and triglyceride concentration along with lower FRAP was also observed with Palmaria palmata supplementation. Evidence from this study suggests that Palmaria palmata may have effects on lipid metabolism and appears to mobilise triglycerides. More research is needed in individuals with dyslipidaemia to fully elucidate these effects.

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