Oxidative Stress Index In Patients Research Articles

Increased oxidative stress is associated with hyperandrogenemia in polycystic ovary syndrome evidenced by oxidized lipoproteins stimulating rat ovarian androgen synthesis in vitro.

To determine the relationship between serum total testosterone (TT) levels and oxidative stress indices in patients with polycystic ovary syndrome (PCOS), and to investigate the effect of oxidative stress on androgen synthesis and its mechanism in rat ovarian theca-interstitial (T-I) cells. Clinical, hormonal, metabolic, and oxidative stress parameters were analyzed in a cross-sectional case-control study including 626 patients with PCOS and 296 controls. The effects of oxidized low-density lipoprotein (ox-LDL) and oxidized high-density lipoprotein (ox-HDL) on cell proliferation, TT secretion, and expression of key enzymes involved in testosterone synthesis were evaluated in T-I cells. Serum TT levels were elevated with an increase in ox-LDL levels, whereas glutathione concentrations were lower in the high-TT subgroup than in the low-TT subgroup. The average ovarian volume and ox-LDL and malondialdehyde levels were significant predictors of TT levels in the multivariate regression models. In a rat ovarian T-I cell model, lipoprotein and oxidized lipoprotein treatments stimulated proliferation and promoted testosterone secretion. The mRNA and protein levels of 17α-hydroxylase were significantly higher in oxidized lipoprotein-treated cells than those in lipoprotein-treated cells. The mRNA levels of cholesterol side chain cleavage enzyme and steroidogenic acute regulatory protein were also significantly higher in ox-HDL-treated cells than in HDL-treated cells. Oxidative stress can promote androgen production by up-regulating the expression of testosterone synthesis-related enzymes in vitro and may be an essential factor in elevating serum TT levels in patients with PCOS.

Effects of dietary polyphenol curcumin supplementation on metabolic, inflammatory, and oxidative stress indices in patients with metabolic syndrome: a systematic review and meta-analysis of randomized controlled trials.

The aim was to conduct a systematic review and meta-analysis for assessing the effectiveness and safety of dietary polyphenol curcumin supplement on metabolic, inflammatory, and oxidative stress indices in patients with metabolic syndrome (MetS). A comprehensive search for clinical trials was conducted in the following scientific databases: PubMed, SCOPUS, Cochrane Library, EMBASE, Web of Science, and China Biological Medicine. Randomized controlled trials (RCTs) evaluating the efficacy and safety of curcumin supplement for MetS were identified. A random-effects meta-analysis was performed using inverse variance, and efficacy was expressed as mean difference (MD) with 95% confidence interval (CI). The metabolic syndrome markers that were evaluated in the present study included waist circumference (WC), fasting blood sugar (FBS), systolic blood pressure (SBP), diastolic blood pressure (DBP), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), tumor necrosis factor-a (TNF-a), interleukin 6 (IL-6), C-reactive protein (CRP), ultrasensitive c-reactive protein (hsCRP), and malondialdehyde (MDA). By employing the Cochrane tool, RCTs were assessed for bias risk. A total of 785 participants from 13 RCTs were included, with intervention durations ranging from 4 to 12 weeks. Compared with the control group, the curcumin group had positive effects on WC (MD = -2.16, 95% CI: -3.78 to -0.54, p= 0.009, seven studies), FBS (MD = -8.6, 95% CI: -15.45 to -1.75, p = 0.01, nine studies), DBP (MD = -2.8, 95% CI: -4.53 to - 1.06, p = 0.002, five studies), HDL-C (MD = 4.98, 95% CI: 2.58 to 7.38, p < 0.0001, eight studies), TNF-a (MD = -12.97, 95% CI: -18.37 to -7.57, p < 0.00001, two studies), CRP (MD = - 1.24, 95% CI: -1.71 to -0.77, p < 0.00001, two studies), and MDA (MD = -2.35, 95% CI: -4.47 to -0.24, p = 0.03, three studies). These improvements were statistically significant. Meanwhile, there was no significant improvement in SBP (MD = -4.82, 95% CI: -9.98 to 0.35, p = 0.07, six studies), TG (MD = 1.28, 95% CI: -3.75 to 6.30, p=0.62, eight studies), IL-6 (MD = -1.5, 95% CI: -3.97 to 0.97, p = 0.23, two studies), or hsCRP (MD = -1.10, 95% CI: -4.35 to 2.16, p < 0.51, two studies). FBS, SBP, HDL-C, IL-6, CRP, hsCRP, and MDA had a relatively high heterogeneity. Curcumin exhibited promising potential in enhancing markers associated with metabolic syndrome, including inflammation. However, additional studies are required to confirm such findings since the included evidence is limited and has a relatively high heterogeneity. https://www.crd.york.ac.uk/prospero, identifier CRD42022362553.

The Predictive Value of Oxidative Stress Index in Patients with Confirmed SARS-COV-2 Infection.

Disbalance balance between oxidants and antioxidants is called oxidative stress and could be presented as oxidative stress index (OSI). OSI is determined by the reactive oxygen metabolites (d-ROM test) to assess oxidants and the plasma antioxidant capacity test (PAT test) to measure antioxidants. The aim of the study was to evaluate the predictive value of OSI in the disease COVID-19. d-ROMs results were the highest in the SARS-CoV-2 POSITIVE group (365+/-112), lower in the SARS-CoV-2 NEGATIVE group (314+/-72.4), and the lowest in an INTENSIVE CARE UNIT group (ICU) (277+/-142) U.Carr. PAT test values were the lowest in the SARS-CoV-2 POSITIVE group (2762+/-387), higher in the ICU group (2772 +/-786), and the highest in the SARS-CoV-2 NEGATIVE group (2808+/-470), and are not statistically significantly different (P>0.05), while OSI was: healthy with average value of 49 and the critical ill with average value of 109 (P = 0.016). Cut-offs for predicting ICUs admission was at OSI 62, with 80.0% sensitivity and 68.2% specificity.

Evaluation of Total Oxidant Status, Antioxidant Status and Oxidative Stress Index in Patients with Recurrent Aphthous Stomatitis

Objective: We try to evaluate total oxidant status (TOS), total antioxidant status (TAS) and oxidative stress index (OSI) in patients with recurrent aphtous stomatitis (RAS) in our study. Methods: A total of 40 patients, 23 female and 17 male, with a mean age of 29, who applied to the dermatology outpatient clinic with the complaint of oral ulcers and were diagnosed with RAS and a total of 49 healthy controls, 33 female and 16 male, with a mean age of 24, were included in the study. Results: The TOS and OSI values of the RAS group were statistically significantly higher than the values of the control group. When the TAS values of both groups were compared; the TAS value of the RAS group was statistically indifferent from the TAS value of the control group. Conclusion: In patients with RAS, serum TOS, serum TAS and OSI values are affected in favour of oxidative processes. In the pathogenesis of RAS, oxidant substances and antioxidant-active substances are important.

Role of Oxidative Stress on Malarial Anaemia: Significance of Oxidative Stress Index in Patients with Malarial Infection

Introduction: An alteration of oxidant and antioxidant levels is thought to be involved in the pathogenesis of malaria. Limited data is found on association between oxidant and antioxidant status and significance of oxidative stress index in patients with malarial infection and anaemia in south Indian population. Aim: To measure the levels of oxidants and antioxidants and oxidative stress index in patients with malaria and their association with anaemia. Materials and Methods: The present case-control study was conducted in Department of Biochemistry, Osmania General Hospital, Hyderabad, India. A total of 50 subjects of malaria aged 20-45 years were included as cases based on inclusion criteria and exclusion criteria. Control group comprised of 50 healthy age and gender matched subjects. Haemoglobin (Hb), serum Malondialdehyde (MDA), Superoxide Dismutase (SOD), Total Antioxidant Capacity (TAC) was estimated in both the groups by standard methods using Ultraviolet Spectrophotometer. Independent sample t-test was used to test for the difference in all biochemical parameters among study and control groups. The study of orrelation among the parameters was done by Pearson’s correlation. Results: Both the groups were age and gender matched (p=0.39). MDA was significantly elevated in cases as compared to controls (p&lt;0.0001). SOD, Ferric Reducing Ability of Plasma (FRAP), Hb were significantly lower in cases as compared to controls with p-value &lt;0.0001. In the present study, it was found that there was a significant negative correlation between Hb and oxidative stress index (MDA/FRAP=-0.480) with p-value=0.0001 in patients with malaria. Conclusion: The present study concluded that oxidative stress might be a cause of malarial anaemia. Alterations in oxidant and antioxidant levels might have a role in pathogenesis of malaria. As compared to individual markers, oxidative stress index was found to be significantly associated with malarial anaemia denoting its role as a better marker in these patients. Antimalarial therapy targeting the above factors might decrease the pathogenesis, morbidity and mortality in patients with malaria.

Follicle-Stimulating Hormone Treatment and Male Idiopathic Infertility: Effects on Sperm Parameters and Oxidative Stress Indices according to FSHR c. 2039 A/G and c. -29 G/A Genotypes.

Scientific evidence shows that the administration of follicle-stimulating hormone (FSH) to infertile patients with normal serum FSH concentrations improves sperm parameters in oligozoospermic men. The aim of this study was to evaluate the effects of highly purified urofollitropin (hpFSH) on conventional and bio-functional sperm parameters and on oxidative stress indices in patients with idiopathic infertility. We also evaluated the response to hpFSH on these parameters in relationship to FSHR c. 2039 A/G and FSHR c. -29 G/A genotypes. A prospective longitudinal study was conducted on 42 patients with idiopathic male infertility, 23 of whom underwent to FSHR c. 2039 A/G and FSHR c. -29 G/A genotyping. Each patient was asked to collect two semen samples before and after administration of 150 IU hpFSH three times a week for 16 weeks. Patients were divided into responders or non-responders based on whether their total sperm count had at least doubled or was less than double at the end of treatment, respectively. Responders showed a significantly higher semen volume, sperm concentration, spermatids, and leukocytes. Non-responders had a significant decrease of the percentage of spermatozoa in early apoptosis after hpFSH administration. Oxidative stress indexes did not differ significantly after FSH administration in both groups. Conventional and bio-functional sperm parameters did not differ in patients with FSHR c. 2039 GG and AA genotypes, and FSHR c. -29 GG genotype both before and after FSH administration. The FSHR c. 2039 and FSHR -29 G/A genotypes and allelic distribution did not differ between responders and non-responders. FSH showed to be capable of ameliorating sperm parameters in about half patients treated, therefore it may be helpful in patients with idiopathic infertility.

Metformin and/or vildagliptin mitigate type II diabetes mellitus induced-oxidative stress: The intriguing effect.

The aim of the present study was to investigate the probable effects of metformin plus vildagliptin on the oxidative stress index (OSI) in patients with type II diabetes mellitus (T2DM). In this case–control study, 44 patients with T2DM on either metformin monotherapy (n = 24) or metformin plus vildagliptin (n = 20) were compared with healthy controls (n = 20). Anthropometric and biochemical variables including body mass index, blood pressure profile, cardiac indices, lipid profile, fasting blood glucose, fasting serum insulin, and glycemic indices were assessed. Besides, total oxidant status (TOS), total antioxidant status (TAS), and OSI were determined. Patients with T2DM have higher risk of cardiometabolic changes compared with the control (P = 0.0001). TAS was lower while TOS and OSI were higher in patients with T2DM, as compared with the healthy controls (P < 0.001). TAS, TOS, and OSI were better in patients with T2DM on metformin plus vildagliptin therapy as compared with metformin monotherapy (P < 0.05). Therefore, this study concluded that metformin plus vildagliptin therapy is more effective than metformin monotherapy in attenuation of OSI in patients with T2DM.

Evaluation of the oxidative stress index in patients with acute decompensate heart failure

Amaç: Dekompanse kalp yetersizliği (KY), dokuların metabolik ihtiyacının karşılanamaması sonucunda çeşitli metabolik ve fizyolojik süreçlere yol açar. Bu süreçte üretilen reaktif oksijen türleri zararlı oksidatif reaksiyonlara yol açar. Bu çalışmamızda, akut dekompanse KY hastalarında uygulanan tedavinin oksidatif stres parametreleri ile ilişkisini ve bu parametrelerde düzelmeyi sağlayıp sağlamadığını araştırmayı amaçladık.Materyal ve Metot: Dekompanse KY nedeniyle yatan toplamda 40 hasta çalışmaya alındı. Hastaların yatışında tedavi öncesi ve taburculuk öncesinde tedavi sonrası antropometrik ölçümleri, ekokardiyografileri, rutin biyokimyasal parametreler yanında total antioksidan kapasite (TAK), total oksidatif seviye (TOS) ve bu ölçümlerin oranlarından elde edilen oksidatif stres indeksi (OSİ) hesaplandı.Bulgular: KY tedavisi sonrası nabız, sistolik kan basıncı ve diyastolik kan basıncında azalma, sol ventrikül ejeksiyon fraksiyonunda yükselme gözlendi (hepsi için p&amp;lt;0.05). Ek olarak KY tedavisi sonrası alınan TAK, TOS ve OSİ değerlerinin tedavi öncesi değerlere göre anlamlı olarak daha fazla olduğu izlendi (hepsi için p&amp;lt;0.05). Yapılan korelasyon analizinde TAK ile sistolik ve diyastolik kan basıncı arasında negatif bir ilişki olduğu (sırasıyla r: -0,307, p:0.014; r: -0,393, p:0.001), EF ile de TAK ve OSİ arasında negatif bir ilişki olduğu bulundu (sırasıyla r: -0,298, p:0.011; r:-0,326, p:0.005). Sonuç: Oksidatif stresin dekompanse KY hastalarında yüksek olduğu ve tedavi ile kompansasyon sonrasında da bu yüksek seviyelerinin devam ettiği görüldü. Literatürde akut dekompanse KY tedavisinin bu parametreleri ne düzeyde etkilediğini gösteren çalışmalar sınırlı ve sonuçları tartışmalı olduğundan, bu konu ile ilgili daha fazla çalışma yapılması gerekmektedir.

The Effect of Astaxanthin on Hormonal Parameters and Oxidative Stress Indices in Patients With Polycystic Ovary Syndrome

The Effect of Astaxanthin on Hormonal Parameters and Oxidative Stress Indices in Patients With Polycystic Ovary Syndrome

The clinical effects of purslane (Portulaca oleracea) seeds on metabolic profiles in patients with nonalcoholic fatty liver disease: A randomized controlled clinical trial.

Nonalcoholic fatty liver disease (NAFLD) is the most common form of chronic liver diseases associated with unfavorable metabolic profiles and oxidative stress parameters. This study was designed to determine the effects of purslane seeds consumption with a low-calorie diet on insulin resistance, lipid profile, and oxidative stress indices in patients with NAFLD. This randomized controlled clinical trial was conducted on 54 individuals with NAFLD. Subjects were randomly assigned to consume either 10g/day of purslane seeds sachet before breakfast and dinner in addition to a low-calorie diet (n=27) or only the low-calorie diet (n=27) for 8weeks. Fasting blood samples were collected at the beginning and end of the study to measure relevant variables. Intake of purslane seeds with the low-calorie diet led to a significant decrease in serum concentrations of fasting blood sugar (FBS; -3.52±10.45 compared with 3.03±9.01mg/dl, P=0.017), quantitative insulin sensitivity check index (QUICKI; 0.13±0.27 compared with -0.002±0.016, P=0.017), total cholesterol (4.33±34.04 compared with 23.48±29.47mg/dl, P=0.032), and low-density lipoprotein cholesterol (LDL-C; -4.35±22.65 compared with 11.82±16.08mg/dl, P=0.004) after intervention. Compared with the control group, purslane seeds consumption with adherence to a low-calorie diet had beneficial effects on FBS, HOMA-IR, QUICKI, serum total, and LDL-C in patients with NAFLD but did not affect other glycemic, lipid profile, and oxidative stress parameters.

Evaluation of serum prolidase enzyme activity and oxidative stress in patients with tinnitus

IntroductionTinnitus is defined as the perception of sound in the head or in the head in the absence of external sounds. The cause of tinnitus is still unknown. ObjectiveWe aimed to compare the serum levels of total oxidant status, total antioxidant status, serum prolidase enzyme activity and the oxidative stress index in patients with tinnitus to those of normal subjects. MethodsTwenty five patients with tinnitus (mean age 34.3) and 25 healthy controls (mean age 37.2) were included in the study. ResultsTotal oxidant status levels in the patient group were significantly higher than in the control group (p=0.037). The mean total oxidant status value was 2.54±0.95mmoL/L in the patient group, and 2.06±0.98mmoL/L in the control group. The mean oxidative stress index level was 0.22±0.10AU in the patient group, while it was 0.17±0.08AU in the control group. Oxidative stress index was significantly higher in the patient group (0.026). There was no significant difference between the groups in terms of total antioxidant status values (p=0.838). The mean serum prolidase enzyme activity level was 202.74±33.56U/L in the patient group and 175.46±42.68U/L in the control group. Serum prolidase enzyme activity levels in the patient group were significantly higher than in the control group (0.040). ConclusionWe detected that the total oxidant status, oxidative stress index and serum prolidase enzyme activity levels were higher in patients with tinnitus when compared to the healthy controls. This finding suggests that oxidative stress index and serum prolidase enzyme activity may play a role in the etiopathogenesis of tinnitus.

Effect of Remifentanil Combined Anesthesia on Cytokines and Oxidative Stress in Patients undergoing Laparoscopic Surgery for Colon Cancer.

To investigate the effect of remifentanil combined anesthesia on serum cytokines and oxidative stress indices in patients undergoing laparoscopic surgery for colon cancer. Experimental study. Department of Anesthesiology, Yuhuangding Hospital Affiliated to Qingdao University, Yantai, China, from May 2016 to March 2018. A total of 154 patients undergoing laparoscopic surgery for colon cancer were randomly divided into control group and observation group, with 77 cases in each group. Control group received fentanyl combined anesthesia, and observation group received remifentanil combined anesthesia. Levels of serum cytokines IL-8, IL-6, CRP, TNF- &alpha; and the levels of oxidative stress indices SOD, MDA, CAT, and GSH on the first day after operation were compared. Occurrence of adverse reactions during anesthesia recovery was observed and recorded in both groups. On the first day after surgery, levels of serum cytokines IL-8, IL-6, CRP, TNF- &alpha; and MDA in the observation group were lower than those in the control group (all p<0.001); levels of serum SOD, GSH, and CAT in the observation group were higher than those in the control group (all p<0.001). The frequency of adverse reactions such as nausea and vomiting, chills, restlessness, cough, and tachycardia in the observation group was lower than that in the control group (p=0.029, 0.016, 0.009, 0.025, and 0.003, respectively). Compared with fentanyl combined anesthesia, the remifentanil combined anesthesia can significantly reduce serum levels of cytokines IL-8, IL-6, CRP, TNF- &alpha; and oxidative stress level, and is, therefore, more secure for patients undergoing laparoscopic surgery for colon cancer.

The Effect of Oxygen Therapy on Oxidative Stress Index in Patients with Acute Myocardial Infarction; a Letter to the Editor.

Tissue hypoxia is a key factor for cell death after acute myocardial infarction (MI). It seems that increase in the relative oxygen pressure in inhaled air can be an effective treatment option for treating acute MI. However, contradicting findings and results have been published regarding using oxygen therapy in patients with acute MI ( 1 , 2 ). Some researchers have believed that generation of free radicals, induction of oxidative stress, and damage to cell membrane are among side effects of O 2 consumption ( 3 , 4 ). It has been shown that O 2 therapy can increase microvascular resistance, result in a decrease in coronary blood flow and cardiac output, and bring about numerous negative effects such as increase in the risk of arrhythmia and cellular damage ( 4 ).

Enzymatic Oxidative Stress Indicators and Oxidative Stress Index in Patients of Leprosy

Introduction: Leprosy is a chronic granulomatous disease caused by Mycobacterium leprae. Oxidative stress caused by Reactive oxygen species (ROS) plays a crucial role in the pathogenesisis of leprosy.Objective: To measure the enzymatic oxidative stress indicators and oxidative stress index in patients of leprosy and compare them with healthy age &amp; sex matched controls.Materials and Methods: In this prospective study 30 untreated leprosy patients were included in the study and matched with 60 healthy controls. Biochemistry estimation was done with blood samples and MDA (lipid peroxidation), Nitric oxide (NO), (SOD) Superoxide dismutase (antioxidant enzyme), total oxidant status (TOS), total antioxidant status(TAS) and oxidative stress index (OSI) were estimated.Results: Highly significant rise (p&lt;0.0001) in serum MDA, NO, TOS and OSI was seen in leprosy patients when compared with controls with highly significant decline in SOD and TAS.Conclusion: The study confirms the oxidative stress in leprosy and suggests antioxidant therapy may be used as an adjuvant in the treatment of leprosy along with MDT.

The effect of statin therapy on oxidative stress indices in patients with arterial hypertension and type 2 diabetes mellitus

Objective: to study the effect of statin therapy on the oxidative and antioxidant systems parameters in patients with arterial hypertension (AH) and concomitant type 2 diabetes mellitus (DM2T).Materials and methods. 126 patients (55 males and 71 females, average age was 57.8 ± 6.2 years) with AH stage II and compensated DM2T were divided into 2 groups: the 1 group – with AH and DM2T (n = 69), who were constantly taking statins (rosuvastatin 10 mg/day or atorvastatin 20 mg/day) for at least 1 year; the 2 group – patients with AH and DM2T (n = 57) who did not take statins. The control group included 20 healthy volunteers. The parameters of lipid and carbohydrate metabolism, the degree of insulin resistance (HOMA-IR), the state of the oxidant system (malonic dialdehyde level –MDA), the antioxidant system (the activity of glutathione peroxidase (GPO) and the level of sulfhydryl groups -SH-groups) were evaluated. The statistics was carried out using the Statistica software package, version 8.0.Results. In the 1st group only the levels of LDL cholesterol significantly differed from the control group (P 0.05). In the 1st group in comparison with the 2nd group unreliable increase in GPO and SH-groups levels on the background of the increase in MDA levels (P > 0.05) were observed.Conclusions. The use of statins in low doses in AH combined with DM2T was accompanied by a nonsignificant improvement of antioxidant protection parameters on the background of increased insulin resistance and increased activity of lipid peroxidation.

Deranged Antioxidant Status and Oxidative Stress in Patients with Cervical Cancer Receiving Radiotherapy

Cervical cancer is the seventh overall, but the second most common cancer in women worldwide. It is the second most common cancer in women of all ages in Ethiopia. Radiotherapy is one of the treatment strategies, but its effect on production of oxygen free radicals that leads to oxidative stress requires proper attention and investigation. In this study oxidative stress in 43 patients with cervical carcinoma before and in the course of radiotherapy was assessed versus 20 normal subjects. Sera were collected at 4 time points from patients, i.e., before radiotherapy, and after 2, 4, and 8 weeks of radiotherapy, but only once from normal controls. Reduced total antioxidant capacity (TAC) was observed in patients than normal subjects before and after radiotherapy. Significantly elevated total peroxide concentration (TPC) was seen in the course of radiotherapy. TPC values at the end of radiotherapy were significantly higher compared to before and after radiotherapy. Oxidative stress index in patients was significantly elevated compared to controls during and at the end of therapy. Levels of lipid peroxides in patients were markedly elevated compared to controls. Our findings showed that cervical cancer induces increased production of oxygen free radicals and radiotherapy has a synergetic effect on the production of oxygen free radicals leading to oxidative stress.

Serum levels of soluble interleukin-2 receptor in association with oxidative stress index in patients with different types of HPV

The aim of this paper is to determine the oxidative-antioxidative status and levels of soluble interleukin-2 recep-tor (sIL-2R) in serum of patients with different types of HPV infections and to compare it with patients who are negative for HPV. A total of 80 women were divided into three groups as follows: Group 1 consisted of 25 women who were positive for HPV types 16 or 18; Group 2 consisted of 25 women who were positive for other types of HPV includ-ing type 31, 33, 35, 39, 45, 51, 52, 56, 58, 59 or 68; Group 3 consisted of 30 patients who were negative for HPV as a control group. Serum sIL-2R and plasma oxidative stress index (OSI) were analyzed. Serum sIL-2R levels were significantly higher in group 1 compared to group 2 and 3. OSI was found significantly increased in groups 1 and 2 compared to group 3. Also, we found a weak positive correlation between IL-2R and OSI. sIL-2R and oxidative stress may have a role in HPV infection, especially in case of high-risk types.

Antioxidant response to artichoke leaf extract supplementation in metabolic syndrome: A double-blind placebo-controlled randomized clinical trial

Oxidative stress is associated with most components and complications of Metabolic Syndrome (MetS). Artichoke Leaf Extract (ALE) has demonstrated anti-oxidant properties in both laboratory and animal studies. This study was designed to examine the effects of ALE on oxidative stress indices in patients with MetS. In the current double-blind placebo-controlled randomized clinical trial, 80 patients with MetS were randomly allocated to either "ALE group" (received 1800mg ALE as four tablets per day) or "Placebo group" (received placebo containing cornstarch, lactose and avicel as four tablets per day) for 12 weeks. Serum levels of malondialdehyde (MDA), total antioxidant capacity (TAC), oxidized-LDL (ox-LDL), red blood cell glutathione peroxidase (GPx) and superoxidase dismutase (SOD), as well as dietary intakes were assessed at baseline and at the end of the study. A total number of 68 patients completed the study (ALE group=33; placebo group=35). Dietary intakes of energy, macronutrients, and micronutrients were not significantly different between two groups throughout the trial, with the exception of zinc (p<0.05). The concentration of ox-LDL decreased significantly in ALE group in comparison to the placebo group (-266.8±615.9 vs-129.5±591.2ng/L; p<0.05). However, no significant inter- and intra-group changes in MDA, SOD, GPx, and TAC concentrations were observed. ALE decreased serum ox-LDL level in patients with MetS, with no beneficial effects on other antioxidant indices. IRCT201409033320N9.

Serum E3 SUMO-protein ligase NSE2 level and peroxynitrite related to oxidative stress in nephrolithiasis patients

ObjectiveTo prove probable relations between serum E3 SUMO-protein ligase NSE2 (NSMCE2) concentration, peroxynitrite related to oxidative stress in nephrolithiasis patients. MethodsA total of 60 patients with nephrolithiasis and 50 healthy volunteers were involved in this study. Colorimetric method was used to detect blood urea, creatinine, uric acid, protein, albumin, total antioxidant status, total oxidant status, peroxynitrite, nitric oxide and oxidative stress index. Glutathione, NSMCE2 and superoxide dismutase were measured by ELISA. ResultsA significant increase in level of peroxynitrite, total oxidant status, NSMCE2 and oxidative stress index in patients was observed, while total antioxidant status and glutathione were significantly decreased. ConclusionsThe study concluded that serum NSMCE2 significantly correlated with peroxynitrite and oxidative stress in patients with nephrolithiasis.

The effect of obesity on total antioxidant/oxidant status and oxidative stress index in patients with chronic periodontitis

Objective: The aim of this study was to evaluate the possible effects of obesity on the local and systemic total oxidant status (TOS), total antioxidant status (TAS), and oxidative stress index (OSI) in patients with chronic periodontitis. Methods: The study included 88 subjects assigned to four groups of 22 subjects each, as follows: O+CP+ (patients with obesity and periodontitis); O P+ (patients with normal weight and periodontitis); O+P (periodontally healthy patients with obesity); and the control group consisting of periodontally healthy patients with normal weight (O P ). Serum and salivary samples were obtained a week before the recording of clinical periodontal parameters. Local and systemic TOS and TAS levels were determined biochemically. Results: TOS and OSI levels were higher and TAS levels were lower in the serum and saliva of the obese individuals with periodontitis. However, TAS, TOS and OSI levels were found to be comparable in patients with obesity or periodontitis. Conclusion: Our results suggest that obesity might play a destruction provoking role in the pathogenesis of periodontitis by negatively affecting oxidative parameters.