Does total antioxidant capacity affect the features of metabolic syndrome? A systematic review

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Sama Rasaee ◽  
Mohammad Alizadeh ◽  
Sorayya Kheirouri ◽  
Hadi Abdollahzad
Keyword(s):  
Systematic Review ◽  
Metabolic Syndrome ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Geographical Location ◽  
Assessment Tools ◽  
Case Control Studies ◽  
Cross Sectional ◽  
Content Type ◽  
Total Antioxidant

Purpose There is some evidence that suggest a higher dietary total antioxidant capacity (DTAC) is associated with a lower risk of metabolic syndrome (MetS). Considering the conflicting results in this field, this paper aims to provide a comprehensive summary of studies on the association of DTAC and components of MetS. Design/methodology/approach A systematic review of articles indexed in PubMed, Scopus and Google Scholar, published from inception to September 2018, with defined keywords, was done. Duplicate or irrelevant reports were screened out and data were extracted through critical analysis. Finally, among the 353 articles, 19 articles met the inclusion criteria. Findings The included cohort studies revealed that higher DTAC was associated with reduced risk of MetS. Also, the association between DTAC and mortality risk of MetS was insignificant in these studies. The case–control studies showed high DTAC is inversely associated with MetS, its components and complications. The randomized controlled trials found that changes in DTAC were negatively correlated with oxidized low-density lipoprotein cholesterol and there was a positive association between DTAC and subjects’ weight and body mass index. Finally, results from the cross-sectional studies were inconsistence in this regard. Originality/value The assessed relationship between MetS or its components with DTAC is inconsistent in the included studies. Different sample size, dietary assessment tools, DTAC index values and geographical location may justify the observed inconsistencies. It seems that further studies are needed to reveal more confident and reliable findings.

Antioxidant status and risk of coronary artery disease

2019 ◽  
Vol 49 (4) ◽  
pp. 700-712 ◽  
Author(s):  
Shokoofeh Talebi ◽  
Zamzam Paknahad ◽  
Mohammad Hashemi ◽  
Akbar Hasanzadeh
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Content Type ◽  
Total Antioxidant ◽  
Artery Disease ◽  
Artery Obstruction

Purpose Coronary artery disease (CAD) is developed by an insufficient supply of oxygen-rich blood to the myocardium. Recent studies have shown that increased oxidative stress has implicated in the pathogenesis of coronary atherosclerosis. Anxiety and CAD have a mutual relationship, as the effect of long-lasting anxiety on atherosclerosis and CAD is well known. The purpose of this study is to investigate the relationship between dietary / serum total antioxidant capacity and CAD. Design/methodology/approach A total of 160 male patients were enrolled in this cross-sectional study. Diagnosis and analysis of angiograms were performed visually by a cardiologist. The subjects were categorized into CAD− (coronary artery obstruction <75 per cent) and CAD+ (coronary artery obstruction ≥ 75 per cent) groups. Anthropometric indices, blood pressure, blood sugar and lipid profile and physical activity (PA) were assessed. Information about anxiety was obtained by Spielberger questionnaire. Dietary total antioxidant capacity (TAC) was obtained by using a semi-quantitative food frequency questionnaire and an oxygen radical absorbance capacity of selected foods. Findings Mean of dietary TAC was significantly lower in CAD+ than CAD− group (P < 0.001). However, there was not any significant differences about serum TAC (P = 0.28). The mean of body mass index (BMI) (P = 0.04) and triglyceride (TG) level (P = 0.03) and the frequency of smoking (P = 0.03) were significantly higher in the CAD+ than the CAD− group. There was no significant relationship between CAD with apparent (P = 0.33) and hidden anxiety level (P = 0.16). Confounding factors such as smoking and medications were adjusted. Research limitations/implications This study had certain limitations. Being a single center cross-sectional design does not permit analysis of causal relationships; the sample size was geographically limited. The authors could not exclude the medication of patients, which could affect the total antioxidant capacity levels. Measurement error in self-reported dietary consumption may results misclassification of exposure. Practical implications A diet high in total antioxidant capacity is inversely associated with CAD. Serum TAC does not vary between men with and without CAD when confounders including age, BMI, TG, smoking, SBP, DBP, energy intake, PA, HDL-C, LDL-C, T-C, FBS, family history of CAD, education and anxiety are taken into consideration. Social implications High consumption of vegetables and fruits may play a major role in the prevention of CAD. Originality/value The study was approved by the ethics committee of Isfahan University of Medical Sciences (No:394888).

scholarly journals Post-COVID-19 Syndrome: The Persistent Symptoms at the Post-viral Stage of the Disease. A Systematic Review of the Current Data

2021 ◽  
Vol 8 ◽  
Author(s):  
Francesca Salamanna ◽  
Francesca Veronesi ◽  
Lucia Martini ◽  
Maria Paola Landini ◽  
Milena Fini
Keyword(s):  
Systematic Review ◽  
Chronic Fatigue ◽  
Current Data ◽  
Assessment Tools ◽  
Current Evidence ◽  
Case Control Studies ◽  
Cross Sectional ◽  
Persistent Symptoms ◽  
Collection Form

Whilst the entire world is battling the second wave of COVID-19, a substantial proportion of patients who have suffered from the condition in the past months are reporting symptoms that last for months after recovery, i. e., long-term COVID-19 symptoms. We aimed to assess the current evidence on the long-term symptoms in COVID-19 patients. We did a systematic review on PubMed, Web of Science, EMBASE, and Google Scholar from database inception to February 15, 2021, for studies on long-term COVID-19 symptoms. We included all type of papers that reported at least one long-term COVID-19 symptom. We screened studies using a standardized data collection form and pooled data from published studies. Cohort cross-sectional, case-report, cases-series, case-control studies, and review were graded using specific quality assessment tools. Of 11,361 publications found following our initial search we assessed 218 full-text articles, of which 145 met all selection criteria. We found that 20.70% of reports on long-term COVID-19 symptoms were on abnormal lung functions, 24.13% on neurologic complaints and olfactory dysfunctions, and 55.17% on specific widespread symptoms, mainly chronic fatigue, and pain. Despite the relatively high heterogeneity of the reviewed studies, our findings highlighted that a noteworthy proportion of patients who have suffered from SARS-CoV-2 infection present a “post-COVID syndrome.” The multifaceted understanding of all aspects of the COVID-19 pandemic, including these long-term symptoms, will allow us to respond to all the global health challenges, thus paving the way to a stronger public health.

P–112 Association between dietary total antioxidant capacity and semen quality parameters in male partners of couples attempting fertility

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
G Eslamian ◽  
S Rohani ◽  
N Shoaibinobarian
Keyword(s):  
Antioxidant Capacity ◽  
Dietary Pattern ◽  
Total Antioxidant Capacity ◽  
Semen Quality ◽  
Sperm Count ◽  
Quality Parameters ◽  
Cross Sectional ◽  
Abnormal Sperm ◽  
Total Antioxidant ◽  
Dietary Total Antioxidant Capacity

Abstract Study question Is there any association between dietary total antioxidant capacity (TAC) and semen quality parameters in male partners of couples attempting fertility? Summary answer Greater adherence to diets high in TAC was significantly associated with higher total sperm count, sperm concentration, and sperm motility. What is known already Among multiple factors that affect the etiology of poor semen quality and male infertility, dietary factors have an important contribution. Also, chronic oxidative stress negatively effects semen quality. Whether adherence to the diet rich in antioxidants is associated with better semen quality remains largely unexplored.The concentration of single antioxidant cannot show the total antioxidant power of the diet, therefore the concept of dietary total antioxidant capacity (TAC) was invented.Dietary scores are useful approach to evaluate the degree of adherence to specific dietary pattern and its benefits in regard to health Study design, size, duration This was a cross-sectional study of 350 men from couples attending a fertility center in Tehran, Iran, recruited between June 2015 and September 2019. Men aged 25–50 years with complete dietary data were analyzed. Participants/materials, setting, methods Diet was assessed via a reproducible and valid 168-item semi-quantitative food frequency questionnaire to determine the entire antioxidants of the usual diet in order to calculate dietary TAC. Semen quality was assessed according to World Health Organization 2010 guidelines. The association between dietary TAC and semen parameters were assessed adjusting for potential confounders through multiple logistic regression analysis. Main results and the role of chance The average age of study participants was 34.9 ± 7.6 years and their BMI was 28.5 ± 4.3 kg/m2. Participants in the lower tertile of the dietary TAC were lower educated (p &lt; 0.01), more physically active (p &lt; 0.05), and predominantly had abnormal sperm progressive motility (p &lt; 0.01). In the multivariable adjusted models, men in the lowest tertile of the dietary TAC Score had 2.9 times higher likelihood of having abnormal sperm motility, total sperm count and concentration, compared to men in the highest tertile of the TAC score (p &lt; 0.05). Limitations, reasons for caution The main limitation of our study was its cross-sectional design, limiting our ability to derive causal association. Wider implications of the findings: Our study suggests that dietary pattern comprising mainly of antioxidant nutrients may help improve semen quality. Our results are consistent with previous studies showing that plant-based diet contains higher levels of antioxidants are associated with better measures of semen quality. Trial registration number Not applicable

Dietary total antioxidant capacity and neuromyelitis optica spectrum disorder susceptibility

2019 ◽  
Vol 50 (4) ◽  
pp. 653-663 ◽  
Author(s):  
Nasim Rezaeimanesh ◽  
Soodeh Razeghi Jahromi ◽  
Abdorreza Naser Moghadasi ◽  
Pegah Rafiee ◽  
Zeinab Ghorbani ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Neuromyelitis Optica ◽  
Total Antioxidant Capacity ◽  
Regression Models ◽  
Spectrum Disorder ◽  
Inverse Association ◽  
Neuromyelitis Optica Spectrum Disorder ◽  
Content Type ◽  
Total Antioxidant ◽  
Dietary Total Antioxidant Capacity

Purpose Neuromyelitis Optica Spectrum Disorder (NMOSD) is a rare disease with unknown risk factors. The role of oxidative stress and nutritional factors is imprecise in NMOSD development. Therefore, this paper aims to evaluate the effects of dietary total antioxidant capacity (TAC) on the odds of NMOSD. Design/methodology/approach Dietary TAC was determined in 70 definite NMOSD cases and 164 healthy controls in term of Ferric Reducing Antioxidant Power (FRAP) method. A validated 168-item semi-quantitative food frequency questionnaire (FFQ) was used for dietary assessment. Three multivariate regression models were applied to analyze the odds of NMOSD across the TAC quartiles. Findings A significant inverse association was found between dietary TAC and odds of being assigned to the NMOSD group in all three regression models. In the fully adjusted model ORs (95% CI) in the second, third and fourth quartiles of TAC vs the first quartile were as follows: 0.11 (0.04-0.29), 0.05 (0.01-0.16) and 0.01 (0.00-0.05), respectively. Odds of NMOSD also indicated a significant decreasing trend across the quartiles of dietary TAC (p-trend: <0.01). Total energy (p < 0.01) as well as consumption of vegetables (p < 0.01), whole grains (p < 0.01), tea and coffee (p < 0.01), legumes (p < 0.01) and poultry (p < 0.01) significantly increased through the TAC quartiles. Originality/value In the present study, a new hypothesis was proposed concerning the influence of dietary TAC on the odds of NMOSD. A diet rich in foods with high TAC can be effective in the modification of the NMOSD odds.

scholarly journals Association of Dietary Total Antioxidant Capacity and MC4R Polymorphisms in Metabolically Healthy and Unhealthy Overweight/Obese Women

2021 ◽  
Author(s):  
maryam elhamkia ◽  
Leila Setayesh ◽  
Habib Yarizadeh ◽  
Sara Pooyan ◽  
Zahra Veysi ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Metabolic Health ◽  
Trolox Equivalent Antioxidant Capacity ◽  
Obese Women ◽  
Cross Sectional ◽  
Reducing Ability ◽  
Total Antioxidant ◽  
Metabolically Healthy ◽  
Dietary Total Antioxidant Capacity

Abstract Background: 3-15% of people with obesity display a metabolically healthy phenotype. An inflammatory diet impairs metabolic signaling pathways and eliciting metabolic syndrome. The main purpose of this study was to investigate how the Dietary Total Antioxidant Capacity (DTAC) and the MC4R variants affect the metabolic health status in overweight and obese Iranian women.Methods and results: This cross-sectional study was conducted on 237 overweight-obese Tehrani women with mean age of 36 years.The DTAC was calculated using the following indices: total reactive antioxidant potential (TRAP), Trolox equivalent antioxidant capacity (TEAC), and the ferric-reducing ability of plasma (FRAP). The Metabolic health was evaluated using the Karelis criteria. The MC4R genotypes were determined by the restriction fragment length polymorphism (PCR-RFLP) method. Approximately 43% of participants were identified as Metabolically Unhealthy Obesity (MUO), 6% Metabolically Healthy Obesity (MHO) including 42.5% of the total had T/T genotype ,23.8% had the C/T genotype, and 33.5% had the C/C genotype (P=0.05). In the C/C genotype people 75% were unhealthy whereas it was lower in T/T and T/C genotype people. Further, The C/C genotype with higher DTAC quartile had higher Karlis score than other DTAC quartile. A liner model test supported that the probability of MHO was significantly higher in subjects with the T/C genotype (β=-0.001, 95% CI= -0.001-4.796; P ≤ 0.1). Conclusions: Our results indicated that the C/C genotype with higher DTAC had favorable lipid profile and were metabolically healthier. It is plausible that dietary modification targeting antioxidant intake may attenuate metabolic impairments associated with genetic predisposition.

Dietary total antioxidant capacity is negatively associated with some metabolic syndrome features in healthy young adults

Nutrition ◽  
2010 ◽  
Vol 26 (5) ◽  
pp. 534-541 ◽  
Author(s):  
Blanca Puchau ◽  
M. Angeles Zulet ◽  
Amaia González de Echávarri ◽  
Helen Hermana Miranda Hermsdorff ◽  
J. Alfredo Martínez
Keyword(s):  
Metabolic Syndrome ◽  
Young Adults ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Negatively Associated ◽  
Total Antioxidant ◽  
Dietary Total Antioxidant Capacity

scholarly journals Dietary Total Antioxidant Capacity and Dietary Polyphenol Intake and Prevalence of Metabolic Syndrome in Polish Adults: A Nationwide Study

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Małgorzata Elżbieta Zujko ◽  
Anna Waśkiewicz ◽  
Anna Maria Witkowska ◽  
Danuta Szcześniewska ◽  
Tomasz Zdrojewski ◽  
...  
Keyword(s):  
Metabolic Syndrome ◽  
Antioxidant Capacity ◽  
Food Consumption ◽  
Total Antioxidant Capacity ◽  
International Diabetes Federation ◽  
Antioxidant Potential ◽  
Health Examination ◽  
Total Antioxidant ◽  
Polyphenol Intake ◽  
Dietary Total Antioxidant Capacity

Specific classes and subclasses of polyphenols have been studied for their potential effects on noncommunicable diseases, but studies on association between dietary polyphenol intake (DPI) and dietary total antioxidant capacity (DTAC) and MetS (metabolic syndrome) are scarce. Therefore, the aim of this study was to determine associations between DTAC and DPI and the prevalence of MetS and its components in the Polish adult population. Subjects (5690) were participants of the Polish National Multicentre Health Examination Survey (WOBASZ II study) performed in 2013-2014. MetS was defined according to the International Diabetes Federation (IDF) and the American Heart Association/National Heart, Lung, and Blood Institute (AHA/NHLBI) criteria. Daily food consumption was assessed by 24-hour dietary recall. DTAC and DPI were evaluated using the data of food consumption and antioxidant potential of foods, measured by FRAP (ferric reducing antioxidant potential) method, and total polyphenol content in foods, measured by Folin-Ciocalteu assay. Logistic regression models were used to assess the relationship between DTAC and DPI and MetS and its components. Crude, age-adjusted, and multivariable-adjusted models were performed. This study demonstrated that in Polish women, high DPI and high DTAC were significantly associated with a reduced odds ratio for the prevalence of MetS components, such as elevated blood pressure and diabetes. In contrast, in men, high DPI and high DTAC did not have the potential to alleviate MetS components.

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