scholarly journals A Novel Oxidative Stress Mediator in Acute Appendicitis: Thiol/Disulphide Homeostasis

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Sefa Ozyazici ◽  
Faruk Karateke ◽  
Umit Turan ◽  
Adnan Kuvvetli ◽  
Huseyin Kilavuz ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Acute Appendicitis ◽  
Perforated Appendicitis ◽  
Oxidative Stress Marker ◽  
Control Group ◽  
Reactive Protein ◽  
Total Thiol ◽  
Stress Marker ◽  
Stress Mediator

Aim. To investigate the role of a novel oxidative stress marker, thiol/disulphide homeostasis, in patients diagnosed with acute appendicitis (AA).Methods. In this study, seventy-one (43 male and 28 female) patients diagnosed with AA and 71 (30 male and 41 female) healthy volunteers were included. Age, gender, body mass index (BMI), haemoglobin (Hb), white blood cell (WBC), c-reactive protein (CRP), and thiol/disulphide homeostasis parameters (native thiol, total thiol, disulphide, disulphide/native thiol, native thiol/total thiol, and disulphide/total thiol ratios) were compared between the groups. Thiol/disulphide homeostasis was determined by a newly developed method by Erel and Neselioglu.Results. The native thiol, total thiol, and the native thiol/total thiol ratio levels were statistically significantly decreased in the AA compared with the control group (p<0.001). Disulphide level and the ratios of disulphide/native thiol and disulphide/total thiol were higher in the AA group than in the control group (p<0.001). There was a negative correlation of CRP with native thiol, total thiol, and native thiol/total thiol ratio while there was a positive correlation of CRP with disulphide/native thiol and disulphide/total thiol in the AA group. In the stepwise regression model, risk factors as disulphide/native thiol (OR = 1.368;p=0.018) and CRP (OR = 1.635;p=0.003) were determined as predictors of perforated appendicitis compared to the nonperforated group.Conclusion. This is the first study examining the thiol/disulphide homeostasis as a diagnostic aid in AA and establishing thiol/disulphide homeostatis balance shifted towards the disulphide formation due to thiol oxidation. Further studies are needed to optimize the use of this novel oxidative stress marker in AA.

scholarly journals Assessment of dynamic thiol/disulfide homeostasis in patients with asthma

2018 ◽  
Vol 42 (3) ◽  
pp. 99-104
Author(s):  
Rukiye Nar ◽  
Aliye Gamze Çalış
Keyword(s):  
Oxidative Stress ◽  
Forced Expiratory Volume ◽  
Control Group ◽  
Reactive Protein ◽  
Total Thiol ◽  
Stress Markers ◽  
Group A ◽  
And Gender ◽  
And Control

Abstract Background: Asthma is a chronic inflammatory lung disease and oxidative stress is an important component in airway inflammation. This study aims to investigate dynamic thiol/disulfide homeostasis in patients with asthma. Methods: A total of 103 subjects, including 56 patients with asthma and 47 healthy controls, of similar age and gender were included in the study. The native thiol, total thiol and disulfide levels and the disulfide-native thiol, disulfide-total thiol and native thiol-total thiol ratios were analyzed and compared between the asthma and control groups using a novel automatized spectrophotometric assay. Results: The levels of native thiol (p<0.001), total thiol (p<0.001) and disulfide (p<0.001) were significantly lower and the C-reactive protein (CRP) levels (p<0.001) were significantly higher in patients with asthma when compared with those in the control group. A negative correlation was detected between CRP levels and native thiol, total thiol and disulfide levels (p<0.05). A significant positive correlation was detected between forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC) levels and native thiol and total thiol levels (p<0.01). Conclusions: The thiol/disulfide homeostasis parameters may be used as novel oxidative stress markers in asthma but further studies are needed to investigate the role of thiol/disulfide homeostasis in asthma.

Indicator Characterizing Carbonyl-Dependent Modification of Erythrocytic Superoxydismutase as a Biochemical Marker of Oxidative Stress in Coronary Heart Disease

Kardiologiia ◽  
2020 ◽  
Vol 60 (5) ◽  
pp. 57-61
Author(s):  
A. K. Tikhaze ◽  
V. Ya. Kosach ◽  
V. Z. Lankin ◽  
A. A. Panferova ◽  
M. D. Smirnova
Keyword(s):  
Oxidative Stress ◽  
Heart Disease ◽  
Stress Intensity ◽  
Blood Cell ◽  
Red Blood Cell ◽  
Oxidative Modification ◽  
Oxidative Stress Marker ◽  
Control Group ◽  
Sod Activity ◽  
Stress Marker

Aim To study the oxidative modification of red blood cell Cu,Zn superoxide dismutase (SOD) in patients with ischemic heart disease (IHD) in vivo and in vitro to substantiate the use of a new oxidative stress marker.Material and methods Red blood cell Cu,Zn SOD was measured by depression of nitrotetrazolium blue reduction by the superoxide anion generated in xanthine oxidase xanthine oxidation. Red blood cell Cu,Zn SOD was measured immunochemically. The biochemical study was performed in the control group (patients with low extremity fracture without known history of cardiovascular diseases and hyperlipidemia) and in groups of patients with acute myocardial infarction, stable angina, and decompensated heart failure. For evaluation of oxidative stress intensity in IHD patients, an empirical SOD oxidative modification coefficient (OMCSOD) was proposed, which is a Cu,Zn SOD activity / Cu,Zn SOD content ratio.Results The red blood cell Cu,Zn SOD activity was significantly decreased in all IHD groups compared to the control group. Furthermore, OMCSOD was also considerably decreased in IHD patients, which warrants the use of this biochemical index as an oxidative stress marker.Conclusion It was shown that the Cu,Zn SOD modification was induced by interaction of the enzyme molecules with a natural dicarbonyl, malonic dialdehyde, and OMCSOD can be used for evaluation of oxidative stress intensity in IHD patients.

scholarly journals The Role of Oxidative Stress in the Etiopathogenesis of Gluten-Sensitive Enteropathy Disease

2017 ◽  
Vol 36 (3) ◽  
pp. 243-250 ◽  
Author(s):  
Mustafa Kaplan ◽  
Ihsan Ates ◽  
Mahmut Yüksel ◽  
Yasemin Ozderin Ozin ◽  
Muhammed Yener Akpinar ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Paraoxonase 1 ◽  
Stress Index ◽  
Control Group ◽  
Gluten Free ◽  
C Reactive Protein ◽  
Serum Samples ◽  
Reactive Protein ◽  
Gluten Sensitive Enteropathy

SummaryBackground:The objective here is to examine the role of overall oxidative stress in the etiopathogenesis of gluten-sensitive enteropathy disease and its relationship with gluten free diet and autoantibodies.Methods:Eighty gluten-sensitive enteropathy patients and 80 control group participants were included in the study. As oxidative stress parameters, we researched total antioxidant status (TAS), total oxidant status (TOS), oxidative stress index (OSI), paraoxonase-1 and arylesterase parameters in the serum samples of gluten-sensitive enteropathy patients.Results:In comparison to the control group, gluten-sensitive enteropathy patients had lower TAS, paraoxonase-1 and arylesterase levels and gluten-sensitive enteropathy patients had considerable TOS and OSI levels. In contrast, patients who agreed to the gluten free eating routine had a higher OSI proportion and patients who did not conform to the gluten free eating regimen had a lower paraoxonase-1 level. An affirming reciprocation was de tected amidst TOS and OSI proportion and gluten-sensitive enteropathy autoantibodies and C-reactive protein levels and a negative correlation was found between arylesterase level and gluten-sensitive enteropathy autoantibodies.Conclusions:We observed oxidative stress levels to be higher in gluten-sensitive enteropathy patients contrasted with the control group. Oxidative stress level showed differences in gluten-sensitive enteropathy patients depending on gluten diet content and autoantibody positivity. In point of fact, C-reactive protein and gluten-sensitive enteropathy autoantibodies are identified with oxidative anxiety parameters resulting in the possibility that oxidative stress might be successful in the gluten-sensitive enteropathy pathogenesis.

scholarly journals Study of pro-oxidant status in acute myocardial infarction

2018 ◽  
Vol 9 (4) ◽  
pp. 31-34
Author(s):  
Tanushri Khatua ◽  
Chandan Sarkar ◽  
Sujit Kumar Dey ◽  
Biswajit Majumder
Keyword(s):  
Oxidative Stress ◽  
Risk Factors ◽  
Myocardial Infarction ◽  
Tertiary Care ◽  
Previous History ◽  
Oxidative Stress Marker ◽  
Control Group ◽  
Care Hospital ◽  
Stress Marker ◽  
Oxidant Status

Background: Apart from several well documented risk factors; oxidative stress may play an important role in the pathogenesis of myocardial infarction. Our study has been designed to investigate the pro-oxidant status in AMI patients who have no previous history of diabetes, hypertension and habit of smoking.Aims and Objectives: To measure the level of serum thiobarbituric acid reactive substances(TBARS) to assess the extent of oxidative damage in recently diagnosed cases of AMI and to look for any correlation between this stress marker and some of the lipid profile markers.Materials and Methods: A cross sectional study was conducted in a tertiary care hospital with 50 non-diabetic, non-hypertensive, non-smoker AMI patients of either sex as Cases and 50 age and sex matched healthy Controls. The biochemical parameters were measured by validated techniques.Results: Level of serum TBARS (4.78 ± 1.06 nmol/ml) has significantly increased (p<0.001) in cases with respect to control group(2.19±0.41 nmol/ml); a positive correlation between serum TBARS and LDL; a negative correlation between serum TBARS and HDL in cases.Conclusion: Our study indicates an increased oxidative stress in AMI patients even in absence of some high risk factors which are oxidative stress inducers by themselves. This evidence suggests that oxidative stress itself may play an important role in the pathogenesis of myocardial infarction. So, the oxidative stress marker may have the importance in early diagnosis of AMI. It also suggests the potential appropriateness of antioxidant therapy in the prevention of AMI.Asian Journal of Medical Sciences Vol.9(4) 2018 31-34

scholarly journals The role of oxidative stress markers in pregnancy induced hypertension

2017 ◽  
Vol 70 (1-2) ◽  
pp. 33-38
Author(s):  
Dragica Draganovic ◽  
Branka Cancarevic-Djajic ◽  
Dragica Jojic
Keyword(s):  
Oxidative Stress ◽  
Pregnant Women ◽  
Thiobarbituric Acid ◽  
Oxidative Stress Marker ◽  
Thiobarbituric Acid Reactive Substance ◽  
Pregnancy Induced Hypertension ◽  
Reactive Substance ◽  
Stress Marker ◽  
Induced Hypertension

Introduction. This article investigated the role of oxidative stress in the etiology of pregnancy induced hypertension. The aim of this study was to determine the degree of oxidative stress, and the level of thiobarbituric acid reactive substance in the blood of pregnant women with and without pregnancy induced hypertension and to correlate these parameters with clinical parameters during pregnancy and delivery. Material and Methods. This prospective study was performed at the University Clinical Centre of the Republic of Srpska. It included 200 pregnant women - 100 with pregnancy induced hypertension, and 100 healthy normotensive pregnant women between 28 to 40 weeks of gestation. Results. Pregnant women with pregnancy induced hypertension had significantly higher median levels of oxidative stress marker: thiobarbituric acid reactive substance of 36.7 ?mol compared to the control group of 13.2 ?mol. Pregnant women with pregnancy induced hypertension presenting with complications had significantly higher thiobarbituric acid reactive substance mean levels of 41.6 ?mol compared with pregnant women without complications. The highest thiobarbituric acid reactive substance level of 43.9 ?mol was found in pregnant women with Hemolysis, Elevated, Liver Ensimes, Low Plateles syndrome. Conclusion. The study showed that thiobarbituric acid reactive substance, as an oxidative stress marker, may be used in clinical practice in the assessment of the severity of complications and as an indicator for timely delivery in women with pregnancy induced hypertension. Further studies and a larger study sample of pregnant women with severe hypertension are necessary to confirm this conclusion.

scholarly journals Thymoquinone Ameliorates Doxorubicin-Induced Cardiotoxicity in Swiss Albino Mice by Modulating Oxidative Damage and Cellular Inflammation

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Mohammad Firoz Alam ◽  
Gyas Khan ◽  
Mohammed M. Safhi ◽  
Saeed Alshahrani ◽  
Rahimullah Siddiqui ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Defense Mechanisms ◽  
Nigella Sativa ◽  
Serum Marker ◽  
Oxidative Stress Marker ◽  
Control Group ◽  
Active Constituent ◽  
Stress Marker ◽  
Group A ◽  
Group B

Thymoquinone is the active constituent ofNigella sativa, having antioxidant and anti-inflammatory actions. In present study, we have analyzed the effects of thymoquinone on doxorubicin (DOX) induced cardiotoxicity in mice. In this experiment, thirty mice (25–35 gm) were divided into five groups (Groups A, B, C, D, and E) each containing six animals. Normal saline was given to a control group (Group A) for 14 days. Cardiotoxicity was induced by DOX (15 mg/kg, i.p.) in Group B, once on the 13th day of the study, and Groups C and D also received DOX (15 mg/kg, i.p.) and were then treated with thymoquinone (10 and 20 mg/kg, b/w, p.o.), respectively, for 14 days. Group E was given only thymoquione (20 mg/kg b/w, p.o.). A blood serum marker (AST, ALT, CK-MB, and LDH) and oxidative stress marker (LPO, GSH, CAT, SOD, GPx, GR, and GST) were evaluated. Results revealed that serum enzyme marker like aspartate aminotransferase (AST), creatinine kinase-MB (CKMB), and lactate dehydrogenase (LDH) were significantly elevated in Group B as compare to Group A. Similarly, the oxidative stress marker lipid peroxidation (LPO) was also elevated in Group B while the antioxidant enzyme catalase, superoxide dismutase, glutathione peroxidase, glutathione reductase, and glutathioneS-transferase (CAT, SOD, GPx, GR, and GST) were also decreased in Group B. The treatment with thymoquinone 10 and 20 mg/kg resulted in a significant decrease in the serum marker and increase in the antioxidant enzymes. In this study, we have found that thymoquinone prevented DOX-induced cardiotoxicity by accelerating heart antioxidant defense mechanisms and down regulating the LPO levels towards normalcy in Groups C and D. The effect of doxorubicin increases the inflammatory cytokine (IL2) in Group B as compared to Group A, and it overcomes by the thymoquinone in Groups C and D. Thus, thymoquinone may have utility as a potential drug for cardiomyopathy.

scholarly journals Paraoxonase and Arylesterase Activities, Lipid Profile, and Oxidative Damage in Experimental Ischemic Colitis Model

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Ethem Unal ◽  
Cengiz Eris ◽  
Bülent Kaya ◽  
Hafize Uzun ◽  
Faruk Cavdar ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Lipid Profile ◽  
Ischemic Colitis ◽  
Oxidative Modification ◽  
Oxidative Stress Marker ◽  
Pon1 Activity ◽  
Control Group ◽  
Stress Marker ◽  
Experimental Group ◽  
Colitis Model

Objective. In the present study, since PON1 is known as an HDL-associated antioxidant enzyme that inhibits the oxidative modification of LDL and oxidative stress plays a role in the pathogenesis of mesenteric ischemia, we investigated the changes in PON1 activity and lipid profile in an experimental ischemic colitis model.Methods. Forty male Wistar albino rats were divided into two groups: the control group (N=15) and the experimental group (N=25). All animals were anesthetized with ether and ketamine anesthesia to undergo a midline laparotomy. Ischemic colitis was induced by marginal vessel ligation in the splenic flexura (devascularization process). A sham laparotomy was performed in the control group. All animals were sacrificed on the seventh postoperative day. Oxidative stress marker (malonyldialdehyde, MDA), lipid profile, and paraoxonase (PON-1) and arylesterase activities were determined. Histopathological evaluation was done under light microscopy, after sectioning and staining with hematoxyline and eosin. Statistical analysis was conducted using Student’st-test and Mann-WhitneyUtest, andP<0.05was considered as statistically significant.Results. There was a significant decrease in both serum and tissue PON1 activity in ischemic colitis group (P<0.01, for each). Similarly, arylesterase levels showed a parallel decrease in both tissue and serum of the experimental group (P<0.01andP<0.001, retrospectively). MDA, an oxidative stress marker, was seen to increase in the experimental group (P<0.01, tissue;P<0.05, serum). In experimental group, there was a significant rise in serum total cholesterol and LDL levels (P<0.001, for each). However, HDL level decreased significantly (P<0.001). Triglycerides did not show any change between the groups (P>0.05).Conclusions. PON1 and arylesterase play an important role in the pathophysiology of ischemic colitis.

scholarly journals Blood biomarkers for stroke: the role of thioredoxin in diagnosis and prognosis of acute ischemic stroke

2019 ◽  
Vol 56 (1) ◽  
Author(s):  
Mohammed I. Oraby ◽  
Radwa A. Rabie
Keyword(s):  
Oxidative Stress ◽  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Solid Phase ◽  
Oxidative Stress Marker ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Stroke Severity ◽  
Diagnosis And Prognosis

Abstract Background Oxidative stress plays a crucial role in the pathophysiology of acute ischemic stroke. Thioredoxin exists and released from cells during inflammation and oxidative stress and was recognized as an oxidative-stress marker. Objective The objective of this study was to assess the role of thioredoxin as an oxidative stress biomarker in diagnosis and prognosis of acute ischemic stroke in a sample of patients recruited from Beni-Suef Governorate, north Upper Egypt. Methods A case control study included 100 subjects; 50 patients with first-ever acute ischemic stroke presented within 24 h from the onset and 50 healthy volunteers as a control. Clinical, functional, and radiological evaluation was done for the patients, and all patients and control were subjected to routine laboratory tests and assessment of serum level of thioredoxin by solid-phase sandwich enzyme-linked immunosorbent assay. Results Thioredoxin was significantly higher in acute stroke patients compared to control group (p value = 0.001). Thioredoxin level was significantly higher in hypertensive patients (p value = 0.007), patients who had carotid stenosis ≥50% (p value = 0.001), patients with poor outcome (p value = 0.009), and in patients with cardio-embolic stroke (p value = 0.001). Significant positive correlation was found between thioredoxin level and volume of infarction (r = 0.501 and p = 0.001), stroke severity at presentation (r = 0.503 and p = 0.021) and clinical outcome after 3 months (r = 0.551 and p value = 0.001). Conclusion Thioredoxin as a marker of oxidative stress can be used as a new diagnostic and prognostic blood biomarker for stroke.

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