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Aim and Objective: Diabetes mellitus is associated with inflammation and increased oxidative stress. In the current study, we aimed to investigate the relationship between type 2 diabetes mellitus (T2DM) and serum pro-oxidantantioxidant balance (PAB) in a large population-based study. Methods: In this cross-sectional study, 7888 individuals recruited as part of the Mashhad Stroke and Heart Atherosclerotic Disorders (MASHAD) cohort study. Participants were divided into three groups, based on their serum PAB values (levels < 36.4, 36.4-82.6 and > 82.6 HK). Serum PAB values were measured using a colorimetric method and enzyme-linked immune sorbent assay (ELISA). Results: Serum PAB in subjects with and without diabetes was reported 76.85 ± 61.07 HK and 69.51 ± 55.50 HK. In subjects with a serum PAB > 82.6 HK the risk of T2DM was 1.2 fold higher in comparison to subjects with a serum PAB < 36.4 HK (OR: 1.26, 95% CI: 1.09 – 1.47, P-value: 0.002). This association remained significant after adjustment for confounding factors in multivariable analysis (OR: 1.19, 95% CI: 1.02 – 1.38, P-value: 0.027). Conclusion: Increased pro-oxidant levels may be a major complication of T2DM in our study subjects and PAB could be an indicator of higher oxidative stress in T2DM patients from northeastern Iran.

Obesity is an important feature of the metabolic syndrome and is associated with an increased risk of type 2 diabetes mellitus, cardiovascular disease, and some cancers. The aim of this study was to determine the relationship between body fat percentage and an imbalance of the prooxidant/antioxidant balance (PAB), serum superoxide dismutase (SOD1) and inflammation (serum hs-CRP) and increase risk of metabolic syndrome and diabetes mellitus. In this study, 9154 individuals were recruited as part of the Mashhad Stroke and Heart Association Disorder (MASHAD) study. Subjects were categorized into two groups according to body fat percentage as defined >25% in male and > 30% in female, according to gender. Biochemical factors, including serum PAB, SOD1, and hs-CRP were measured in all subjects. SPSS version 18 was used for statistical analyses for all. GraphPad Prism 6 for figures was used. Of total number of subjects (9154), 6748 (73.7%) were found to have a high body fat (BF) percentage. Serum hs-CRP and PAB were significantly higher in individuals with a high BF percentage (P 0.05). BF percentage, serum PAB and serum hs-CRP were significantly higher in individuals with metabolic syndrome and diabetes versus those without metabolic syndrome and diabetes mellitus (P < 0.05), however serum SOD1 was significantly lower in individuals with metabolic syndrome (P < 0.005). Oxidative stress and inflammation are two factors that may link the presence of high BF percentage with the development of metabolic syndrome, diabetes, and cardiovascular disease. © 2018 BioFactors, 45(1):35-42, 2019.

Background: Depression and anxiety are significantly associated with systemic inflammation. Moreover, oxidative stress resulting from a disturbance in the prooxidant-antioxidant balance is linked to inflammation-related conditions. Therefore, depression/anxiety symptoms may also be associated with oxidative stress.\ud Objective: To examine the association between depression/anxiety symptoms and serum prooxidant-antioxidant balance (PAB) in adults who participated in a large population-based, cross-sectional study.\ud Methods: Serum PAB values were measured in 7,516 participants (62% females and 38% males) aged 35–65 years, enrolled in a population-based cohort study. Beck Depression and Anxiety Inventories were used to evaluate symptoms of depression and anxiety. Multinomial logistic regression was used to examine the effect of confounders on the status of serum PAB change.\ud Results: Among men, serum PAB values were increased incrementally from 1.55±0.47 to 1.59±0.47, 1.69±0.38, and 1.68±0.38 in the no or minimal, mild, moderate and severe depression groups, respectively (P trend

Background and aims: There is persuasive evidence that oxidative stress and inflammation are features of the metabolic syndrome (MetS). We have investigated the relationship between serum pro-oxidant antioxidant balance (PAB), serum uric acid and high sensitive C-reactive protein (hs-CRP) in 7208 participants from the MASHAD study cohort, who were categorized as having MetS, or not, using IDF criteria. Methods: Serum fasting lipid, fasting blood glucose and uric acid concentrations were measured enzymatically using commercial kits on a BT- 3000 autoanalyzer (Biotechnical, Rome, Italy). Serum hs-CRP was measured by PEG-enhanced immunoturbidimetry method using an Alycon analyzer (ABBOTT, Chicago, IL, USA). A colorimetric method was used to determine serum PAB. Results: Serum PAB values were significantly higher in the individuals with MetS compared to those without MetS (p

OBJECTIVE:\ud Girls with micronutrient deficiencies may have impaired growth and development, and furthermore this may also impact on their childbearing. We have investigated the relationship between serum zinc and copper concentrations, dietary zinc and copper intake and anthropometric and demographic parameters, and cardiovascular risk factors, in 408 girls living in northeastern Iran.\ud METHODS:\ud A total of 408 healthy girls, aged 12-18 years old, were included in our study. Serum zinc and copper concentrations were measured by flame atomic absorption (Varian AA240FS) and zinc and copper intake were assessed using a 3-day dietary record.\ud RESULTS:\ud There was a weak correlation between serum and dietary zinc intake (r = 0.117, p = 0.018). The correlation between serum and dietary copper approached significance (r = -0.094, p = 0.056). The mean serum zinc and copper concentrations were 14.61 ± 2.71 μmol/L and 19.48 ± 8.01 μmol/L respectively. Height, total cholesterol (TC) and low-density lipoprotein (LDL) were positively correlated with serum copper concentration. Subjects with high serum copper concentrations (>24 μmol/L) were found to have a significantly higher fasting blood glucose (FBG) compared to subjects with normal, or low serum copper concentrations (p = 0.033). Girls who were in the 5th percentile or greater for height were found to have higher serum copper concentrations than girls in other height categories.\ud CONCLUSION:\ud There was a weak relationship between dietary and serum concentrations of zinc. Copper status was associated with anthropometric and biochemical parameters, including FBG and lipid profile. Further studies are required to define the role of copper in metabolic health.

Several chronic diseases are mediated by oxidative stress. Oxidative stress affects cell morphology and function and is associated with alterations in the serum protein component. In the current study, we analyzed four individual prognostic factors associating with serum Pro-Oxidant-Antioxidant Balance (PAB): neutrophil to lymphocyte ratio (NLR), Vitamin D, anti-heat shock protein 27 (anti-hsp27) antibody titer, and red blood cell distribution width (RDW) to evaluate them as the potential prognostic markers. In the current study, we attempted to investigate the relationship between serum PAB, RDW, NLR, serum vitamin D and anti-hsp27 concentration.A total of 852 participants (438 males and 414 females) aged 47.64 ± 7.77 years were recruited in a cross-sectional study based on the Mashhad stroke and heart atherosclerotic disorders (MASHAD) cohort study data. Hematological parameters, and vitamin D, PAB and anti-hsp27 antibody titers were measured using the Sysmex auto analyzer system and enzyme-linked immune sorbent assay (ELISA), respectively.The results showed a significant correlation between Vitamin D and anti-hsp27 antibody titers (r = -0.13 and p0.001) as well as between RDW and serum PAB (r = 0.120 and p0.001). Moreover, we found that serum PAB was positively associated with serum anti hsp27 antibody titers. The results showed increasing 1 unit of serum vitamin D can cause 3% decreases in anti hsp 27 values (OR = 0.97; CI 95% (0.96-0.99); p = 0.004). While this association was not significant for RDW, NLR and PAB (p0.05) we found a significant association between serum PAB and serum anti hsp-27 antibody titers. Subjects with PAB levels 36.31-82.63 had a higher risk (1.83 fold) of having an increased anti-hsp27 antibody titers in comparison to the reference group (PAB level36.31) (OR = 1.83 (95% CI = 1.33-2.52), p0.001).The present study shows that serum vitamin D can be associated with reduction in inflammatory status probably by decreasing levels of serum anti-hsp27 antibody titers, reduction in oxidative stress and therefore may reduce the risk of cardiovascular diseases. Anti-hsp27 antibody titers are associated with oxidative stress through the serum PAB, therefore these factors may be of prognostic values in detecting oxidative stress and risk of atherosclerosis. The evaluation of these factors in a larger population may help further confirm these findings.

Samaneh Abolbashari,1,* Susan Darroudi,1,* Maryam Tayefi,2,3 Zahra Khashyarmaneh,4 Parvin Zamani,5 Hamideh Moalemzadeh Haghighi,4 Amir Hooshang Mohammadpour,6,7 Shima Tavalaei,8 Mahsa Ahmadnezhad,9 Habibollah Esmaily,10 Gordon A Ferns,11 Zahra Meshkat,12 Majid Ghayour-Mobarhan8 1Student Research Committee, Department of Modern Sciences and Technologies, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; 2Cardiovascular Research Center, Mashhad University of Medical Science, Mashhad, Iran; 3University International Accreditation, International Office, Clinical Research Unit, Mashhad University of Medical Sciences, Mashhad, Iran; 4Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran; 5Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; 6Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; 7Clinical Pharmacy Department, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran; 8Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; 9Nutrition Research Center, Department of Community Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran; 10Department of Biostatistics, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran; 11Brighton and Sussex Medical School, Division of Medical Education, Falmer, Brighton, Sussex, UK; 12Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran *These authors contributed equally to this work Introduction: Copper (Cu) and zinc (Zn) are important trace elements that are also structural ions of superoxide dismutase (SOD), which reduce oxidative stress. Zinc deficiency and excess copper have been reported to be associated with inflammation. The human T-lymphotropic virus type 1 (HTLV-1) is a retrovirus, which is believed to cause systemic inflammation. The aim of this study is to measure levels of Zn, Cu, SOD, and prooxidant–antioxidant balance (PAB) in HTLV-1-positive patients and investigate the association between serum Zn and Cu concentrations and levels of oxidative stress in them.Methods: The serum samples of 1,116 subjects who had participated in the “Mashhad Stroke and Heart Atherosclerotic Disorder” study, including 279 HTLV-1-positive and 837 HTLV-1-negative patients, were used. Levels of Zn, Cu, SOD, and PAB were measured.Results: Zinc and SOD levels were lower in the HTLV-1-positive group; however, the difference was statistically significant only for the level of SOD (P=0.003). On the other hand, levels of copper and PAB were significantly higher in HTLV-1 positive subjects; P=0.004 and P=0.002, respectively.Conclusion: In HTLV-infected patients, serum Zn concentration is lower and Cu concentration is higher than healthy controls. This altered situation might be either primary or secondary to HTLV-1 infection, which should be investigated in larger studies. We showed that SOD is significantly lower in HTLV-1-infected subjects. As in some other viruses that evolve different mechanisms to potentiate virus replication by changing the physiologic condition of host cells, HTLV-1 too probably decreases the activity of copper–zinc SOD1 by suppressing its gene.Keywords: HTLV-1, trace elements, superoxide dismutase, prooxidant-oxidant balance