Behavioral dysfunction, brain oxidative stress, and impaired mitochondrial electron transfer in aging mice

2002 ◽  
Vol 282 (4) ◽  
pp. R985-R992 ◽  
Author(s):  
Ana Navarro ◽  
María Jesús Sánchez Del Pino ◽  
Carmen Gómez ◽  
Juan Luis Peralta ◽  
Alberto Boveris
Keyword(s):  
Oxidative Stress ◽  
Electron Transfer ◽  
Life Span ◽  
Citrate Synthase ◽  
Thiobarbituric Acid ◽  
Cross Sectional Study ◽  
Mitochondrial Enzymes ◽  
Sod Activity ◽  
Cross Sectional ◽  
Old Mice

Behavioral tests, tightrope success, and exploratory activity in a T maze were conducted with male and female mice for 65 wk. Four groups were defined: the lower performance slow males and slow females and the higher performance fast males and fast females. Fast females showed the longest life span and the highest performance, and slow males showed the lowest performance and the shortest life span. Oxidative stress and mitochondrial electron transfer activities were determined in brain of young (28 wk), adult (52 wk), and old (72 wk) mice in a cross-sectional study. Brain thiobarbituric acid reactive substances (TBARS) were increased by 50% in old mice and were ∼15% higher in males than in females and in slow than in fast mice. Brain Cu,Zn-superoxide dismutase (SOD) activity was increased by 52% and Mn-SOD by 108% in old mice. The activities of mitochondrial enzymes NADH-cytochrome c reductase, cytochrome oxidase, and citrate synthase were decreased by 14–58% in old animals. The cumulative toxic effects of oxyradicals are considered the molecular mechanism of the behavioral deficits observed on aging.

scholarly journals DAN MYELOPEROxIDASE) DAN DISFUNGSI ENDOTEL (ASIMETRIK DIMETILARGININ) DI KEGEMUKAN (OBESITAS)

2018 ◽  
Vol 16 (3) ◽  
pp. 128
Author(s):  
Joko Widodo ◽  
Burhanuddin Bahar ◽  
Mansyur Arif
Keyword(s):  
Oxidative Stress ◽  
Endothelial Dysfunction ◽  
Central Obesity ◽  
Activity Concentration ◽  
Pathological Condition ◽  
Cross Sectional Study ◽  
Elevated Concentration ◽  
Sod Activity ◽  
Cross Sectional ◽  
Male Subjects

Obesity is a pathological condition in which there is an excess body fat due to imbalance energy expenditure. Its association with oxidative stress could cause other metabolic disorders such as endothelial dysfunction, atherosclerosis, and cardiovascular disease. Theaim of this study was to assess the correlation of oxidative stress (F2-Isoprostane, Superoxide dismutase and Myeloperoxidase) andendothelial dysfunction (Asymmetric dimethylarginine) which happened in central obese men. A cross sectional study was carried outin 62 central obesity male subjects with ages range between 30−60 years. The researcher determined SOD activity, concentration ofMPO as well as ADMA. In this study was found a significant correlation of F2-Isoprostan (r = 0.333, p = 0.008), MPO (r = 0.386; p = 0.008) and ADMA but not with SOD. The elevated concentration of F2-Isoprostane occur 3.5 times (p = 0.02; 95%; CI = 1.19–10.19), elevated MPO occur 3.7 times (p = 0.023; 95%; CI = 1.16–11.56) while combination of elevated F2-Isoprostane-MPO occur6.7 times (p = 0.011; 95%; CI = 1.33-33.24) will increase the risk of endothelial dysfunction. There was a significant correlation of oxidative stress with endothelial dysfunction, and the increase concentration of F2-Isoprostane and MPO indicates the occurrence of endothelial dysfunction in central obesity.

Effect of different models of physical exercise on oxidative stress markers in mouse liver

2009 ◽  
Vol 34 (1) ◽  
pp. 60-65 ◽  
Author(s):  
Luciano A. da Silva ◽  
Cleber A. Pinho ◽  
Luis G.C. Rocha ◽  
Talita Tuon ◽  
Paulo C.L. Silveira ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Physical Exercise ◽  
Mouse Liver ◽  
Citrate Synthase ◽  
Training Session ◽  
Thiobarbituric Acid ◽  
Oxidative Stress Markers ◽  
Sod Activity ◽  
Stress Markers ◽  
Continuous Running

The aim of this study was to investigate the effect of different protocols of physical exercise on oxidative stress markers in mouse liver. Twenty-eight male CF1 mice (30–35 g) were distributed into 4 groups (n = 7) — untrained (UT), continuous running (CR), downhill running (D-HR), and intermittent running (IR) — and underwent an 8-week training program. Forty-eight hours after the last training session, the animals were killed, and their livers were removed. Blood lactate, creatine kinase, citrate synthase, thiobarbituric acid reactive species, carbonyl, superoxide dismutase (SOD), and catalase (CAT) activities were assayed. Results show a decrease in the level of lipoperoxidation and protein carbonylation in the CR and D-HR groups. SOD activity was significantly increased and CAT activity was reduced in the CR and D-HR groups. Our findings indicate that CR and D-HR may be important for decreasing oxidative damage and in the regulation of antioxidant enzymes (SOD and CAT) in the livers of trained mice.

scholarly journals Hubungan antara Kadar Feritin dengan Malondialdehyde pada Pasien Talasemia β Mayor di RSD dr. Soebandi Jember

2020 ◽  
Vol 7 (1) ◽  
pp. 52
Author(s):  
Trinita Diyah Permatasari ◽  
Rini Riyanti ◽  
Desie Dwi Wisudanti
Keyword(s):  
Oxidative Stress ◽  
Pearson Correlation ◽  
Thiobarbituric Acid ◽  
Cross Sectional Study ◽  
P Value ◽  
Strong Positive Correlation ◽  
Cross Sectional ◽  
Normality Test ◽  
Pearson Correlation Test ◽  
Immuno Assay

Repeated blood transfusions, increased iron absorption, and ineffective erythropoiesis in major β thalassemia patients lead to iron overload characterized by elevated ferritin levels. Free iron will catalyze reactive oxygen species (ROS) formation by Fenton reaction that cause oxidative stress. Malondialdehyde (MDA) is the lipid peroxidation end product used to measure the oxidative stress. This study aimed to determine the correlation between ferritin levels and MDA levels in major β thalassemia patients at dr. Soebandi Hospital Jember. An analitic observational study with cross sectional study design which the subjects were 15 patients with major β thalassemia in the Pediatric Department at dr. Soebandi Hospital Jember who met inclusion and exclusion criteria. Ferritin levels measured by Enzyme-Linked Fluorescent Immuno Assay (ELFA) method and MDA levels measured by Thiobarbituric Acid Reactive Substances (TBARS) method using spectrophotometer at 535 nm. Data was analyzed with Shapiro Wilk normality test and Pearson correlation test. The mean of ferritin levels was 3540,46±3925,37 ng/mL and MDA levels was 4,77±2,03 nmol/mL. The result showed that there is strong positive correlation between ferritin levels and MDA levels with p value=0,001 and r=0,786 in major β thalassemia patients at dr. Soebandi Hospital Jember.

scholarly journals Characterization of Differentially Expressed Circulating miRNAs in Metabolically Healthy versus Unhealthy Obesity

Biomedicines ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 321
Author(s):  
Susana Rovira-Llopis ◽  
Rubén Díaz-Rúa ◽  
Carmen Grau-del Valle ◽  
Francesca Iannantuoni ◽  
Zaida Abad-Jimenez ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Lipid Metabolism ◽  
Insulin Signalling ◽  
Cross Sectional Study ◽  
Differentially Expressed ◽  
Circulating Mirnas ◽  
Oxidative Stress Biomarkers ◽  
Cross Sectional ◽  
Metabolically Healthy Obese ◽  
Metabolically Healthy

Obese individuals without metabolic comorbidities are categorized as metabolically healthy obese (MHO). MicroRNAs (miRNAs) may be implicated in MHO. This cross-sectional study explores the link between circulating miRNAs and the main components of metabolic syndrome (MetS) in the context of obesity. We also examine oxidative stress biomarkers in MHO vs. metabolically unhealthy obesity (MUO). We analysed 3536 serum miRNAs in 20 middle-aged obese individuals: 10 MHO and 10 MUO. A total of 159 miRNAs were differentially expressed, of which, 72 miRNAs (45.2%) were higher and 87 miRNAs (54.7%) were lower in the MUO group. In addition, miRNAs related to insulin signalling and lipid metabolism pathways were upregulated in the MUO group. Among these miRNAs, hsa-miR-6796-5p and hsa-miR-4697-3p, which regulate oxidative stress, showed significant correlations with glucose, triglycerides, HbA1c and HDLc. Our results provide evidence of a pattern of differentially expressed miRNAs in obesity according to MetS, and identify those related to insulin resistance and lipid metabolism pathways.

scholarly journals Increased ischemia-modified albumin levels in children with steroid-sensitive nephrotic syndrome

2020 ◽  
Vol 36 (7) ◽  
Author(s):  
Gokhan Cakirca ◽  
Ahmet Guzelcicek ◽  
Kenan Yilmaz ◽  
Cemal Nas
Keyword(s):  
Oxidative Stress ◽  
Nephrotic Syndrome ◽  
Pediatric Nephrology ◽  
Cross Sectional Study ◽  
Healthy Controls ◽  
Cross Sectional ◽  
Ischemia Modified Albumin ◽  
Creative Commons ◽  
Steroid Sensitive Nephrotic Syndrome ◽  
Steroid Sensitive

Objective: Growing evidence shows that oxidative stress plays an important role in the development and progression of nephrotic syndrome (NS). In this study, we aimed to examine serum IMA levels as an indicator of oxidative stress in children with steroid-sensitive NS (SSNS) in remission and relapse. Methods: This cross-sectional study was carried out at the Pediatric Nephrology Unit of Sanliurfa Training and Research Hospital, Sanliurfa, Turkey, from April 2019 to December 2019. In this study Serum IMA and albumin levels were determined in 70 children with SSNS and 45 healthy controls. Among the children with SSNS, 50 were in remission and 20 were in relapse. Then, adjusted IMA levels were calculated from the IMA/albumin ratio. Results: IMA and adjusted IMA levels significantly increased and albumin significantly decreased in children with SSNS in relapse and remission compared with those of the healthy controls. Moreover, these alterations were more prominent in the relapse group than in the remission group. IMA was inversely correlated with albumin in children with SSNS (r= −0.881, p= <0.001). Conclusions: Our findings demonstrated that elevated IMA and adjusted IMA levels observed in patients with SSNS were associated with increased oxidative stress and could indirectly reflect the degree of oxidative damage in glomerular structures. doi: https://doi.org/10.12669/pjms.36.7.2924 How to cite this:Cakirca G, Guzelcicek A, Yilmaz K, Nas C. Increased ischemia-modified albumin levels in children with steroid-sensitive nephrotic syndrome. Pak J Med Sci. 2020;36(7):---------. doi: https://doi.org/10.12669/pjms.36.7.2924 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

scholarly journals THE CORRELATION BETWEEN FAT INTAKE AND PLASMA SUPEROXIDE DISMUTASE ACTIVITY WITH TELOMERE LENGTH OF MINANGKABAU ETHNICITY MEN, IN WEST SUMATERA, INDONESIA

2019 ◽  
pp. 305-309
Author(s):  
AFRIWARDI AFRIWARDI ◽  
DELMI SULASTRI ◽  
YUNIAR LESTARI ◽  
DESMAWATI DESMAWATI ◽  
PRIMA MINERVA
Keyword(s):  
Superoxide Dismutase ◽  
Enzyme Activity ◽  
Fatty Acid ◽  
Telomere Length ◽  
Saturated Fatty Acids ◽  
Cross Sectional Study ◽  
Fat Intake ◽  
Sod Activity ◽  
Cross Sectional ◽  
Total Fat

Objective: The purpose of this research is to investigate the correlation between fat intake and plasma superoxide dismutase (SOD) enzyme activity with telomere length of Minangkabau ethnic men in West Sumatera, Indonesia. Materials and Methods: This cross-sectional study was conducted in Padang City in 2016, using a sample of 107 Minangkabau ethnic men, aged between 40 and 50 years. The total fat, saturated fatty acids (SFA), monounsaturated fatty acid (MUFA), and polyunsaturated fatty acid (PUFA) intake were collected using a food frequency questionnaire, and blood sample analysis to measure telomere length and plasma SOD activity. Results: This research indicated that an average telomere length was 584.59±305.92 bp, fat intake consists of total fat was 27.01±6.68% calorie, SFA was 24,7510.07% calorie, MUFA was 10.24±5.41% calorie, and PUFA was 7.35±3.54% calorie. Average of plasma SOD activity was 5.85±3.41 u/mL. There were no correlations between fat intake (total fat, SFA, MUFA, and PUFA) with telomere length (p>0.05), but there was a significant positive correlation between plasma SOD enzyme activity with telomere length (r=−0.202, p=0.037). Conclusion: Fat intake within normal limits does not correlate with telomere length, and plasma SOD activity is a risk factor for telomere shortening in ethnic Minangkabau men.

scholarly journals Malondialdehyde Levels in Preeclampsia before and after Delivery

1970 ◽  
pp. 143
Author(s):  
Harold Rumopa ◽  
Freddy W. Wagey ◽  
Eddy Suparman
Keyword(s):  
Oxidative Stress ◽  
Plasma Levels ◽  
Cross Sectional Study ◽  
Hplc Method ◽  
Wilcoxon Test ◽  
Sectional Study ◽  
Cross Sectional ◽  
Average Value ◽  
Significant Difference ◽  
Before And After

  Objective: Determine differences plasma levels MDA in preeclampsiabefore and 2 hours after delivery.   Methods: This was an analytic cross-sectional study. Subjectconsists of 23 pregnancies with preeclampsia, where 23 bloodsamples taken before delivery and 23 were taken 2 hours afterdelivery. This study was conducted from August 2016 untilDecember 2016 at Department of Obstetrics and GynecologyFaculty of Medicine Universitas Sam Ratulangi / Prof. Dr. R. D.Kandou Hospital Manado and satellite hospital. Samples weretaken from plasma and analysed using HPLC method at Prodiaclinical laboratory.   Results: In patients with severe preeclampsia before deliverywe found average value (1.4796  0.40819 nmol/ml), minimumvalue (1.03 nmol/ml) and maximal value (2.77 nmol/ml)and 2 hours after delivery with average value (1.2470 0.34324 nmol/ml), minimum value (0.91 nmol/ml), and maximumvalue (2.47 nmol/ml). by using Wilcoxon test, we foundthere were significant differences in plasma levels of MDA (p =0.000).   Conclusion: This significant difference suggests that decreasedplasma levels of MDA 2 hours after delivery and gives the sense thatthere is a relationship between oxidative stress of cells with severepreeclampsia before and shortly after delivery, that MDA is an indicatorof oxidative stress.   Keywords: malondialdehyde, oxidative stress, peroxidation lipid,preeclampsia

scholarly journals Oxidative stress and plasma lipoproteins in cancer patients

2014 ◽  
Vol 12 (4) ◽  
pp. 480-484 ◽  
Author(s):  
Fernanda Maria Machado Maia ◽  
Emanuelly Barbosa Santos ◽  
Germana Elias Reis
Keyword(s):  
Oxidative Stress ◽  
Lipid Profile ◽  
Total Cholesterol ◽  
Cancer Patients ◽  
Thiobarbituric Acid ◽  
Plasma Lipoproteins ◽  
Cross Sectional ◽  
Patients With Cancer ◽  
Group 2 ◽  
Group 1

Objective To evaluate the relation between oxidative stress and lipid profile in patients with different types of cancer.Methods This was an observational cross-sectional. A total of 58 subjects were evaluated, 33 males, divided into two groups of 29 patients each: Group 1, patients with cancer of the digestive tract and accessory organs; Group 2 patients with other types of cancers, all admitted to a public hospital. The plasma levels (lipoproteins and total cholesterol, HDL, and triglycerides, for example) were analyzed by enzymatic kits, and oxidative stress based on thiobarbituric acid-reactive substances, by assessing the formation of malondialdehyde.Results In general the levels of malondialdehyde of patients were high (5.00μM) as compared to 3.31μM for healthy individuals. The median values of lipids exhibited normal triacylglycerol (138.78±89.88mg/dL), desirable total cholesterol values (163.04±172.38mg/dL), borderline high LDL (151.30±178.25mg/dL) and low HDL (31.70±22.74mg/dL). Median HDL levels in Group 1 were lower (31.32mg/dL) than the cancer patients in Group 2 (43.67mg/dL) (p=0.038). Group 1 also showed higher levels of oxidative stress (p=0.027).Conclusion The lipid profile of patients with cancer was not favorable, which seems to have contributed to higher lipid peroxidation rate, generating a significant oxidative stress.

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