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Showing papers on "Super oxide dismutase published in 2015"


Journal ArticleDOI
TL;DR: The experimental results indicated that the protective mechanism of AC might be attributed partly to the inhibition of proinflammatory cytokine production and NF-κB activation.

180 citations


Journal ArticleDOI
TL;DR: The results suggest that BPA exposure might induce hyperglycemia and its complications in adult male mice by induction of oxidative stress.
Abstract: Bisphenol A (BPA), an endocrine-disrupting chemical, has been considered as a possible risk factor for diabetes and its complications. However, the underlying mechanisms of BPA-induced diabetes are not clear. The present study was performed to evaluate the effects of BPA on the hyperglycemia, lipid abnormalities and oxidative stress. In this study, the mice were divided into three groups of six animals each: One group as a control (C) and two other groups which exposed to 0.5 and 2 mg/kg concentrations of BPA. BPA powder was dissolved in sterile extra virgin olive oil and injected intraperitoneally to the tested groups, while the control group only received pure olive oil for 4 weeks. After 4 weeks, the changes of glucose, lipid profile reduced, total protein, glutathione (GSH), malondialdehyde (MDA), total antioxidant status (TAS), catalase (CAT) and super oxide dismutase (SOD) were determined in serum and pancreas. The results indicated that BPA dose-dependently increased the levels of blood glucose, lipid profile and MDA in the tested groups compared with the control group (p < 0.001). BPA reduced significantly the levels of HDL-C and GSH in dose-dependent manner (p < 0.001). BPA injection increased the levels of MDA and decreased the levels of GSH and TAS, and also the activities of SOD and CAT in the pancreas of exposed mice compared with the control group (p < 0.05). In addition, body weight increased in the mice exposed to BPA compare to control animals. These results suggest that BPA exposure might induce hyperglycemia and its complications in adult male mice by induction of oxidative stress.

102 citations


Journal ArticleDOI
TL;DR: It is conclusively demonstrated that RJ and CLO administration provides sufficient protection against the ruinous effects of T on rat pups brain tissue function and structure.

78 citations


Journal ArticleDOI
TL;DR: P. crocea has a strong ability to resist oxidative stress caused by the infection of C. irritans, and its body surface mucus contains high levels of immune factors, which presented a rapid and significant response to the infection.

76 citations


Journal ArticleDOI
TL;DR: A highly sensitive, specific and reproducible nanobiosensor to detect one specific liver cancer biomarker, the manganese super oxide dismutase (MnSOD), using aptamer as a bioreceptor for the detection of disease biomarker at low concentrat...
Abstract: In this paper, we present the development of a highly sensitive, specific and reproducible nanobiosensor to detect one specific liver cancer biomarker, the manganese super oxide dismutase (MnSOD). The high sensitivity and reproducibility was reached by using SERS on gold nanostructures (nanocylinders and coupled nanorods) produced by electron-beam lithography (EBL). The specificity of the detection was provided by the use of a specific aptamer with high affinity to the targeted protein as a recognition element. With such a sensor, we have been able to observe the SERS signal of the MnSOD at concentrations down to the nM level and to show with negative control that this detection is specific due to the use of the aptamer. This latter issue has allowed us to detect the MnSOD in different body fluids (serum and saliva) at concentrations in the nM range. We have then demonstrated the effectiveness of our SERS nanobiosensor using aptamer as a bioreceptor for the detection of disease biomarker at low concentrat...

67 citations


Journal ArticleDOI
TL;DR: In search for a suitable algal bioreagent for monodisperse gold nanoparticle production, a eukaryotic green alga Rhizoclonium fontinale was found to produce spherical nanoparticles, when exposed to 15 mg L−1 auric chloride solution at pH 9 for 72 h.
Abstract: In search for a suitable algal bioreagent for monodisperse (homogenous mixture of same size and shape) gold nanoparticle production, a eukaryotic green alga Rhizoclonium fontinale was found to produce spherical (~16 nm size) nanoparticles, when exposed to 15 mg L−1 auric chloride solution at pH 9 for 72 h. In this connection, the effects of different concentrations of gold ions, amount of biomass, and pH of the exposure medium on nanoparticle synthesis were evaluated. Upregulation of stress-related compounds like, carotenoids and stress enzymes—catalase, ascorbate peroxidase, and super oxide dismutase of gold-exposed biomass, were recorded up to 24 h at the onset of gold nanoparticles synthesis, afterwards enzyme activity ceased but the nanoparticle production continued up to 72 h of exposure. Cell wall thickening, rapid akinete formation, pigment loss, giant cell formation, pyknosis, and purple coloration of the filaments during algae–gold interaction were also evident. The nanoparticles were characterized by UV–Vis spectroscopy, dynamic light scattering, high-resolution transmission electron microscopy, and energy dispersive X-ray spectroscopy. Environmental scanning electron microscopy indicated cell wall distortion of the filaments in Au3+ exposure as well as only intracellular production of gold nanoparticles by Rhizoclonium as no nanoparticles were found on the surface.

67 citations


Journal ArticleDOI
TL;DR: Dietary supplementation with 0.60% nucleotide improve the growth performance, immune activity and intestine growth in tilapia, and exerted moderate influence on the intestinal microbiota of hybridtilapia.

63 citations


Journal ArticleDOI
TL;DR: This study reports, for the first time, an increase in expression of xanthine oxidase in an invertebrate system (honey bees) exposed to pesticides.
Abstract: Pesticides have been cited as one of the major drivers of pollinator loss. However, little is known about pesticide impacts on natural populations of native honey bee species. This study looked into the effect of pesticides with respect to oxidative stress in the laboratory and in field populations of two native Indian honey bee species (Apis dorsata and A. cerana) by examining a combination of biomarkers, e.g., superoxide dismutase, catalase and xanthine oxidase. A significant upregulation of all three biomarkers was observed in both treated individuals in laboratory experiments and field populations sampled from a pesticide use gradient. This study reports, for the first time, an increase in expression of xanthine oxidase in an invertebrate system (honey bees) exposed to pesticides.

61 citations


Journal ArticleDOI
01 Jan 2015-Nephron
TL;DR: A possible role of XO itself in CKD-related cardiovascular disease (CVD) and the hypothesis that beneficial effects observed with XO inhibitors on CVD in CKd may also be due to the reduction of oxidative stress are raised.
Abstract: Background: Chronic kidney disease (CKD) is associated with increased cardiovascular morbidity and mortality. Oxidative stress seems to play a pivotal role in this process, and purine metabolism may be involved in CKD-related oxidative stress. Xanthine oxidase (XO) is an enzyme involved in purine metabolism and is also responsible for the production of reactive oxygen species. Methods: This prospective study aimed to analyze the relation between plasma dosages of molecules involved in redox balance, purine metabolism and cardiovascular events in patients with non-diabetic CKD stages 3-5 or on chronic hemodialysis (HD). CKD (n = 51) and HD (n = 50) patients were compared to matched healthy controls (n = 38) and followed-up for 3 years. Results: Both CKD and HD patients had decreased plasma levels of antioxidants (selenium, zinc, vitamin C). HD patients had decreased levels of the antioxidant enzyme superoxide dismutase and increased levels of oxidation products (ischemia-modified albumin, malondialdehyde [MDA]). The following substrates and enzymes involved in purine metabolism were increased in the HD cohort: adenosine, adenosine deaminase and the pro-oxidant XO. XO activity was negatively correlated with super oxide dismutase and positively with MDA. Interestingly, XO activity was an independent predictor of cardiovascular events in CKD and HD patients, regardless of uric acid levels. Uric acid was not predictive of events. Conclusion: This highlights a possible role of XO itself in CKD-related cardiovascular disease (CVD) and raises the hypothesis that beneficial effects observed with XO inhibitors on CVD in CKD may also be due to the reduction of oxidative stress.

56 citations


Journal ArticleDOI
TL;DR: LA sustained-release microspheres represent a high degree of ecological safety and their practical applications for the treatment of water undergoing algal blooms need further study.

56 citations


Journal ArticleDOI
TL;DR: This is the first evidence that PEDF and its functional peptide 44mer protect cultured H9c2 cells and primary cardiomyocytes against apoptosis and necroptosis under hypoxic condition via the anti-oxidative mechanism.
Abstract: Pigment epithelium-derived factor (PEDF) has many biological activities. But it's not known whether PEDF and its functional peptides could protect against hypoxia-induced cell death and the mechanisms are still unclear. We used cultured H9c2 cells and primary cardiomyocytes to show that apoptosis and necroptosis were significantly increased after hypoxia. Both PEDF and its fuctional peptides 44mer reduced apoptosis and necroptosis rates and inhibited the expression of cleaved caspase 3 and receptor-interacting protein 3 (RIP3). Furthermore, PEDF and 44mer could up-regulate super oxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) levels, promote clearing of reactive oxygen species (ROS) and malondialdehyde (MDA). While, 34mer, another functional peptides had no effect on cell apoptosis and necroptosis. Hereby this is the first evidence that PEDF and its functional peptide 44mer protect cultured H9c2 cells and primary cardiomyocytes against apoptosis and necroptosis under hypoxic condition via the anti-oxidative mechanism.

Journal ArticleDOI
TL;DR: The finding demonstrated that TB might have a potential benefit in preventing ischemic heart diseases like myocardial infarction and the enhancement of antioxidant defense system might be associated with the increased heme oxygenase isoform 1 (HO-1) induction and activated nuclear respiratory factor 2 (Nrf-2) translocation.

Journal ArticleDOI
TL;DR: The results emphasize the potential of application of amino acids mixture in sustainable agriculture in arid and semiarid regions and opens up new research lines aimed at obtaining maximum benefit from the amino acids under salinity or other osmotic stress conditions.
Abstract: Irrigation with diluted seawater can act as an alternate water resource and thus plays an important role in saving fresh water resources as well as promoting agriculture. Two pot experiments were conducted to elucidate the effect of foliar application with amino acid mixture (0, 500, 1000 and 1500 mg/L as AA0, AA1, AA2 and AA3, respectively) on faba bean plants irrigated with different seawater levels (0.23, 3.13 and 6.25 dS/m as S0, S1 and S2, respectively) regarding some physiological and biochemical aspects, lipid peroxidation, antioxidant enzymes and endogenous polyamines of faba bean (Vicia faba L.) plants. Irrigation of faba bean plants with different levels of seawater caused significant increases in osmotic solutes (total soluble sugars, free amino acids and proline), phenol content, lipid peroxidation, some antioxidant enzymes (IAA-oxidase, polyphenol oxidase; PPO, peroxidase; POX, super oxide dismutase; SOD, Catalase; CAT, ascorbate peroxidase; APX) and endogenous spermidine and spermine compared with control plants. At the same time, indole acetic acid (IAA), putrescine and total endogenous polyamine contents were decreased in response to different seawater levels. Under salt stress, foliar application with different concentrations stimulated the salt tolerance of faba bean plants via improving osmotic solutes (total soluble sugars, free amino acids and proline), phenolic content, IAA and endogenous polyamines, whereas lipid peroxidation and antioxidant enzymes (PPO, POX, SOD, CAT and APX) were significantly decreased. These results emphasize the potential of application of amino acids mixture in sustainable agriculture in arid and semiarid regions. In addition, it opens up new research lines aimed at obtaining maximum benefit from the amino acids under salinity or other osmotic stress conditions.

Journal ArticleDOI
TL;DR: The protective effect of CUR against DEN-induced hepatocarcinogenesis in albino rats was proven and curcumin significantly lowered the serum levels of AFP, IL-2 and IL-6, ALT, AlT, and malondialdehyde and increased the gene expression and activities of Gpx, GRD, CAT and SOD.
Abstract: Curcumin is widely used as a traditional medicine. This work was aimed to investigate its possible protective effect against chemically induced hepatocellular carcinoma (HCC) in rats. Fifty male albino rats were divided into five groups (n=10, each). The control group received a single dose of normal saline, the diethylnitrosamine (DENA) group received a single intra-peritoneal dose at 200mg/kg body weight, and the 3rd, 4th and 5th groups were given DENA and daily administrated curcunine (CUR) via intra-gastric intubation in doses of 300,200 and 100 mg/kg b.wt. respectively for 20 weeks. Serum, and liver samples were used for determination of alpha feto-protein (AFP), interleukin-2 (IL-2), interleukine-6 (IL-6), serum liver enzymes (AST, ALT, ALP and GGT) levels as well the activities and gene expression of glutathione peroxidise (GPx), glutathione reductase (GR), catalase (CAT) and super oxide dismutase (SOD). Curcumin significantly lowered the serum levels of AFP, IL-2 and IL-6, ALT, ALT, and malondialdehyde (MDA) as well gene expression of IL-2 and IL-6. In contrast it increased the gene expression and activities of Gpx, GRD, CAT and SOD. The protective effect of CUR against DEN-induced hepatocarcinogenesis in albino rats was proven.

Journal ArticleDOI
TL;DR: The results unequivocally suggest that the vegetative cells of C. reinhardtii respond differentially to various stress agents, leading to different death types in the same organism, unlike most other organisms, when exposed to NaCl, which does not undergo PCD.
Abstract: Eukaryotic microalgae serve as indicators of environmental change when exposed to severe seasonal fluctuations. Several environmental stress conditions are known to produce reactive oxygen species in cellular compartments, resulting in oxidative damage and apoptosis. The study of cell death in higher plants and animals has revealed the existence of an active ‘programmed cell death’ (PCD) process and similarities between such processes suggest an evolutionary origin. A study was undertaken to examine the morphological, biochemical and molecular responses of the unicellular green alga Chlamydomonas reinhardtii after exposure to oxidative (10 mM H2O2) and osmotic (200 mM NaCl and 360 mM sorbitol) stress. Concentrations of H2O2 (2–50 mM), NaCl and sorbitol (100–800 mM) were negatively correlated with growth. Biochemical analyses showed an increase in intracellular H2O2 production (2.2-fold with H2O2 and ~1.2–1.4-fold with NaCl and sorbitol) and activities of some antioxidant enzymes [super oxide dismutase (SO...

Journal ArticleDOI
TL;DR: Interestingly, Nagina22 emerged as the best performer in terms of yield as well as expression of physiological and biochemical traits at elevated temperature, and N22 performed better at molecular level also during elevated temperature.
Abstract: In changing climate, heat stress caused by high temperature poses a serious threat to rice cultivation. A multiple organizational analysis at physiological, biochemical and molecular level is required to fully understand the impact of elevated temperature in rice. This study was aimed at deciphering the elevated temperature response in eleven popular and mega rice cultivars widely grown in India. Physiological and biochemical traits specifically membrane thermostability (MTS), antioxidants, and photosynthesis were studied at vegetative and reproductive phases which were used to establish a correlation with grain yield under stress. Several useful traits in different genotypes were identified which will be important resource to develop high temperature tolerant rice cultivars. Interestingly, Nagina22 emerged as best performer in terms of yield as well as expression of physiological and biochemical traits at elevated temperature. It showed lesser relative injury, lesser reduction in chlorophyll content, increased super oxide dismutase, catalase and peroxidase activity, lesser reduction in net photosynthetic rate (PN), high transpiration rate (E) and other photosynthetic/ fluorescence parameters contributing to least reduction in spikelet fertility and grain yield at elevated temperature. Further, expression of 14 genes including heat shock transcription factors and heat shock proteins was analyzed in Nagina22 (tolerant) and Vandana (susceptible) at flowering phase, strengthening the fact that N22 performs better at molecular level also during elevated temperature. This study shows that elevated temperature response is complex and involves multiple biological processes which are needed to be characterized to address the challenges of future climate extreme conditions.

Journal ArticleDOI
TL;DR: The results suggest that YLSP may have a protective effect suppressing the aging process by enhancing antioxidant activity and immunity, as well as modulating aging-related gene expression.
Abstract: Yulangsan polysaccharide (YLSP) is a traditional Chinese medicine used in long-term treatment as a modulator of brain dysfunction and immunity. In this study, we evaluated the protective effect of YLSP against D-galactose-induced impairment of oxidative stress and the immune system and evaluated its possible mechanism of action. D-galactose was subcutaneously injected into the dorsal neck of mice daily for 8 weeks to establish the aging model. YLSP was simultaneously administered once daily. The results indicate that YLSP significantly improves the general appearance of the aging mice. YLSP significantly increased the levels of antioxidant enzymes, such as super oxide dismutase, glutathione peroxidase, catalase and total anti-oxidation capability, while decreasing the content of malondialdehyde in different tissues, including the liver, brain, and serum. YLSP also increased the interleukin-2 level while decreasing the interleukin-6 level. Moreover, YLSP significantly inhibited advanced glycation end product formation. Furthermore, YLSP decreased p21 and p53 gene expressions in the liver and brain of D-galactose-treated mice. These results suggest that YLSP may have a protective effect suppressing the aging process by enhancing antioxidant activity and immunity, as well as modulating aging-related gene expression.

Journal ArticleDOI
TL;DR: The results suggest that HIV positive morphine users have increased levels of oxidative stress and effect of cell cycle machinery, which may cause the HIV infection and disease progression.
Abstract: HIV infection and illicit drugs are known to induce oxidative stress and linked with severity of viral replication, disease progression, impaired cell cycle regulation and neurodegeneration. Studies have shown that morphine accelerates HIV infection and disease progression mediated by Reactive oxygen species (ROS). Oxidative stress impact redox balance and ROS production affect cell cycle regulation. However, the role of morphine in HIV associated acceleration of oxidative stress and its link to cell cycle regulation and neurodegeneration has not been elucidated. The aim of present study is to elucidate the mechanism of oxidative stress induced glutathione synthases (GSS), super oxide dismutase (SOD), and glutathione peroxidase (GPx) impact cell cycle regulated protein cyclin-dependent kinase 1, cell division cycle 2 (CDK-1/CDC-2), cyclin B, and cell division cycle 25C (CDC-25C) influencing neuronal dysfunction by morphine co-morbidity with HIV-1 gp120. It was observed that redox imbalance inhibited the GSS, GPx and increased SOD which, subsequently inhibited CDK-1/CDC-2 whereas cyclin B and CDC-25C significantly up regulated in HIV-1 gp120 with morphine compared to either HIV-1 gp120 or morphine treated alone in human microglial cell line. These results suggest that HIV positive morphine users have increased levels of oxidative stress and effect of cell cycle machinery, which may cause the HIV infection and disease progression.

Journal ArticleDOI
TL;DR: The present investigation suggests that BOvG phenolic rich extract (as a multi-component therapy) exhibited anti-diabetic, antilipidemic and antioxidant properties in STZ-induced diabetic rats.
Abstract: Cruciferous vegetables, in particular those included into the Brassica genus, are good sources of a variety of nutrients and health-promoting phytochemicals. Phenolic compounds are the major antioxidants of Brassica; hence the contribution of Brassica vegetables to health improvement has largely been associated to their antioxidant capacity. This study aimed to assess anti-diabetic, antilipidemic, and antioxidant activity of phenolic rich extract of Brassica oleraceae var gongylodes (BOvG) in Wistar rats. The findings revealed that the administration of BOvG extract to diabetic rats significantly reduced fasting blood glucose by 64% within 7 days of treatment. Additionally, BOvG extract was also observed to normalize the diabetic rats’ lipid profile and HbA1c (Glycated hemoglobin). BOvG extract also showed protection of liver- kidney functions, which was evidenced by the significant decrease in Blood Urea Nitrogen (BUN), Serum glutamic oxaloacetic transaminase (SGOT) and Serum glutamic pyruvic transaminase (SGPT). The treatment also improved the antioxidant status of the diabetic rats where the enzymatic activities of Catalase (CAT) and Super Oxide Dismutase (SOD) were significantly increased. Furthermore, RP-HPLC analysis detected chlorogenic acid, rutin, and sinapic acid against known standards in BOvG extract. Hence, the present investigation suggests that BOvG phenolic rich extract (as a multi-component therapy) exhibited anti-diabetic, antilipidemic and antioxidant properties in STZ-induced diabetic rats.

Journal ArticleDOI
05 Nov 2015-PeerJ
TL;DR: Conclusively, the oxidative stress biomarkers and acute phase proteins could be used as diagnostic and prognostic biomarkers in camel UTI management and efforts should be forced to investigate such biomarker in other species with UTI.
Abstract: The present study aimed to investigate the diagnostic and prognostic importance of oxidative stress biomarkers and acute phase proteins in urinary tract infection (UTI) in camels. We describe the clinical, bacteriological and biochemical findings in 89 camels. Blood and urine samples from diseased (n = 74) and control camels (n = 15) were submitted to laboratory investigations. The urine analysis revealed high number of RBCS and pus cells. The concentrations of serum and erythrocytic malondialdehyde (sMDA & eMDA), Haptoglobin (Hp), serum amyloid A (SAA), Ceruloplasmin (Cp), fibrinogen (Fb), albumin, globulin and interleukin 6 (IL-6) were higher in diseased camels when compared to healthy ones. Catalase, super oxide dismutase and glutathione levels were lower in diseased camels when compared with control group. Forty one of 74 camels with UTI were successfully treated. The levels of malondialdehyde, catalase, super oxide dismutase, glutathione, Hp, SAA, Fb, total protein, globulin and IL-6 were associated with the odds of treatment failure. The MDA showed a great sensitivity (Se) and specificity (Sp) in predicting treatment failure (Se 85%/Sp 100%) as well as the SAA (Se 92%/Sp 87%) and globulin levels (Se 85%/Sp 100%) when using the cutoffs that maximizes the sum of Se + Sp. Multivariate logistic regression analysis revealed that two models had a high accuracy to predict failure with the first model including sex, sMDA and Hp as covariates (area under the receiver operating characteristic curve (AUC) = 0.92) and a second model using sex, SAA and Hp (AUC = 0.89). Conclusively, the oxidative stress biomarkers and acute phase proteins could be used as diagnostic and prognostic biomarkers in camel UTI management. Efforts should be forced to investigate such biomarkers in other species with UTI.

Journal ArticleDOI
TL;DR: It is shown that aging is associated with an increase of 5-mC and 5-hmC immunoreactivity in mouse cerebellar Purkinje cells, and that CR is an effective means to prevent or counteract deleterious age-related epigenetic alterations.

Journal ArticleDOI
TL;DR: The increased blood and salivary superoxide dismutase enzyme levels in smokers may be an adaptive defense mechanism to counteract the increased reactive oxygen species production induced by smoking.

Journal ArticleDOI
TL;DR: Results here presented show that R. officinalis aqueous extract displays important in vivo and in vitro anti‐inflammatory actions by blocking pathways of neutrophil migration and secretion, suggesting its therapeutic application to acute inflammatory reactions.
Abstract: Rosmarinus officinalis L. phenolic compounds have attracted considerable attention because of their antioxidant and antimicrobial properties, including its ability to treat inflammatory disorders. In this work, we investigated the in vivo and in vitro effects of R. officinalis aqueous extract on neutrophil trafficking from the blood into an inflamed tissue, on cell-derived secretion of chemical mediators, and on oxidative stress. Anti-inflammatory activity was investigated using carrageenan-induced inflammation in the subcutaneous tissue of male Wistar rats orally treated with the R. officinalis extract (100, 200, or 400 mg/kg). The leukocyte influx (optical microscopy), secretion of chemical mediators (prostaglandin E2 (PGE2), TNF-α, interleukin 6 (IL-6), leukotriene B4 (LTB4), and cytokine-induced neutrophil chemoattractant 1 by enzyme-linked immunosorbent assay), and the anti-oxidative profile (super oxide dismutase (SOD), glutathione peroxidase, and thiobarbituric acid reactive substance (TBARS) spectrophotometry) were quantified in the inflamed exudate. N-Formyl-methionine-leucine-phenylalanine-induced chemotaxis, lipopolysaccharide-induced NO2 (-) production (Greiss reaction), and adhesion molecule expression (flow cytometry) were in vitro quantified using oyster glycogen recruited peritoneal neutrophils previous treated with the extract (1, 10, or 100 µg/mL). Animals orally treated with phosphate-buffered saline and neutrophils incubated with Hank's balanced salt solution were used as control. R. officinalis extract oral treatment caused a dose-dependent reduction in the neutrophil migration as well as decreased SOD, TBARS, LTB4, PGE2, IL-6, and TNF-α levels in the inflamed exudate. In vitro treatment with R. officinalis decreased neutrophil chemotaxis, NO2 (-) production, and shedding of L-selectin and β2 integrin expressions. Results here presented show that R. officinalis aqueous extract displays important in vivo and in vitro anti-inflammatory actions by blocking pathways of neutrophil migration and secretion, suggesting its therapeutic application to acute inflammatory reactions.

Journal ArticleDOI
TL;DR: Results suggest that cTnI and CK-MB could be used as diagnostic and prognostic biomarkers in camels infected with T. evansi.
Abstract: This study was conducted to investigate the level of cardiac and oxidative stress markers in camels infected with Trypanosoma evansi and to explore the diagnostic and prognostic value of cardiac troponin I (cTnI) and creatine kinase-myocardial band (CK-MB) in response to infection. Seventy four dromedary camels with clinical and laboratory evidence of trypanosomosis and 20 healthy controls were included in this study. Serum cTnI, CK-MB, CK, malondialdehyde (MDA) and super oxide dismutase (SOD) were measured. The values of cTnI, CK-MB, CK and MDA were significantly higher, whereas SOD level was lower in T. evansi infected camel. Successfully treated camels (n = 43) had lower levels of cTnI, CK-MB, CK and MDA, but higher level of SOD compared to camels with treatment failure. Both cTnI and CK-MB showed high degree of accuracy in predicting treatment outcome (success vs failure). The area under the curve for cTnI and CK-MB was 0·98 and 0·93, respectively. However, cTnI showed better sensitivity and specificity than CK-MB (Se = 96·8% vs 83·9% and Sp = 100% vs 88·5%, respectively). These results suggest that cTnI and CK-MB could be used as diagnostic and prognostic biomarkers in camels infected with T. evansi.

Journal ArticleDOI
TL;DR: It is concluded that EPE extracts showed anti-diabetic and anti-oxidant potential against streptozotocin-induced diabetes and protected the end organs by restoring the anti-Oxidants enzyme.

Journal ArticleDOI
TL;DR: It is suggested that DZN can have effect on the antioxidant and oxidative stress biomarkers of fish negatively, but decreases the toxic effect of diazinon, as well as the decrease of LPO and DNA fragmentation near the control values.
Abstract: The aim of the present study was to evalute the protective role effect of lycopene and vitamin E on oxidative stress in Oreochromis niloticus exposed to diazinon (DZN). Adult fish were exposed to two sublethal concentrations (0.76 and 2.3 mg/l) of DZN against the ameliorative effect of lycopene (10 mg/kg) and vitamin E (50 mg/kg) for 14 and 28 days. DZN significantly led to a decline in total antioxidant capacity (TAO). However, lipid peroxidation (LPO), DNA fragmentation percentage, super oxide dismutase (SOD) and catalase (CAT) were significantly increased in gills, liver and kidney from the control values. Also, gills showed the highest accumulated DZN residues. Lycopene (LYC) and Vitamin E (VE) supplementation play an appositive role in detoxification of DZN toxicity. The results suggest that DZN can have effect on the antioxidant and oxidative stress biomarkers of fish negatively. Administration of lycopene and vitamin E could not decrease DZN residues in different tissues, but decreases the toxic effect of diazinon, as well as the decrease of LPO and DNA fragmentation near the control values. Also, TAO, CAT and SOD were better than the groups treated with only DZN. Key words: Fish, residues carotenoide, insecticides, antioxidant, oxidative stress.

Journal ArticleDOI
TL;DR: Administration of quercetin two hours before CdF2 significantly reduced the biochemical alterations in reduced glutathione, ascorbic acid, lipid peroxidation, super oxide dismutase, catalase and total protein (p<0.05).
Abstract: Quercetin, a member of the flavonoid family is a major antioxidant acquired in humans by food consumption, while Cadmium fluoride (CdF 2) is one of the naturally occurring chemicals having adverse effects. The protec tive effect of quercetin on time dependent oxidative damage induced in mice liver by CdF2 was studied in the following groups of mice consisting of six mice each: (i) control group; (ii) mice treated with single i.p injection of 2 mg/kg bw CdF2 for 24 h; (iii) mice treated with single i.p injection of 2 mg/kg bw CdF2 for 48 h; (iv) mice treated with single i.p injection of quercetin (100 mg/ kg bw); (v) mice treated with i.p injection of 100 mg/kg bw of quercetin followed by i.p injection of CdF2 (2 mg/ kg bw) for 24 h; and (vi) mice treated with i.p injection of 100mg/kg bw of quercetin followed by CdF2 (2 mg/ kg bw) for 48 h. Administration of quercetin two hours before CdF2 significantly reduced the biochemical altera tions in reduced glutathione, ascorbic acid, lipid peroxidation, super oxide dismutase, catalase and total protein (p<0.05). Histopathology also showed the protective effect of quercetin. The livers treated with CdF 2 were atrophic, markedly nodular, inflamed and necrotic. How ever, this effect was reduced to a minimum in the mice pre-treated for two hours with quercetin.

Journal ArticleDOI
TL;DR: The present study clearly indicates that GO -induces renal fibrosis by enhancing GO/receptor of advanced glycation end product (RAGE) induced ROS generation and GA effectively counteracted GO-induced renal Fibrosis by its ROS quenching and anti-glycation activity.
Abstract: This study was designed to evaluate the protective activity of gallic acid (GA) against glyoxal (GO) an advanced glycation intermediate-induced renal fibrosis in experimental rats. Glyoxal (i.p) at a dose of 15 mg/Kg body weight/day for 4 weeks induces renal fibrosis. GA was administered orally (100 mg/Kg body weight/day) along with GO for 4 weeks. The anti-fibrotic activity of GA was analyzed by measuring the collagen synthesis and deposition in renal tissues using mRNA expression analysis and Masson trichrome staining (MTS), respectively. The nephroprotective potential of GA was assessed by quantifying the markers of kidney damage such as serum blood-urea-nitrogen (BUN), creatinine (CR) and alkaline phosphatase (AP). Moreover, basement membrane damage in renal tissues was analysed by periodic acid Schiff's (PAS) staining. GA co-treatment markedly suppressed the GO-induced elevation in mRNA expression of collagenIand III, MMP-2, MMP-9 and NOX (p < 0.05, respectively) genes as compared with GO alone infused rats. In addition, GA co-treatment significantly attenuated the GO -induced elevation in serum markers such as BUN, CR and AP levels (p < 0.05, respectively). Furthermore, GA co-treatment restored back the decreased renal super oxide dismutase (SOD) activity (p < 0.05) thereby assuage the reactive oxygen species (ROS) generation, and maintained the normal architecture of glomerulus. The present study clearly indicates that GO -induces renal fibrosis by enhancing GO/receptor of advanced glycation end product (RAGE) induced ROS generation and GA effectively counteracted GO-induced renal fibrosis by its ROS quenching and anti-glycation activity.

Journal ArticleDOI
TL;DR: Light is shed on the possible pathphysiological role of lipid profile, acute phase proteins (APPs), proinflammatory cytokines and oxidative stress markers in pneumonic pasteurelosis in sheep.
Abstract: The aim of this study was to assess the pathophysiological importance of lipid profile, acute phase proteins, proinflammatory cytokines and oxidative stress markers in sheep with pneumonic pasteurellosis. Blood samples were collected from 36 Pasteurella multocida-infected sheep, together with 20 healthy controls. Samples for bacteriological examination (nasal swabs, bronchoalveolar lavage) were collected from all animals and subjected to bacteriological examinations. Moreover, heart blood and lung samples were collected from the dead pneumonic sheep and subjected also to bacteriological examinations. A lipid profile was determined, along with a blood picture and other biochemical parameters. The acute phase proteins (fibrinogen, haptoglobin, serum amyloid A), the proinflammatory cytokine tumour necrosis factor-alpha, interleukins (IL-1α, IL-1β, IL-6), interferon-gamma and the oxidative stress markers malondialdehyde, super oxide dismutase, glutathione and catalase were also measured. The examined biochemical parameters were increased in the pneumonic sheep, except for cholesterol and high-density lipoprotein cholesterol (HDL-c), which were significantly lower than control group. Acute phase proteins and cytokines were significantly higher in the pneumonic sheep when compared to the healthy sheep. There was a significant increase in the levels of malondialdehyde; however, a significant decrease in the levels of super oxide dismutase, glutathione and catalase was observed. The present study shed the light on the possible pathphysiological role of lipid profile, acute phase proteins (APPs), proinflammatory cytokines and oxidative stress markers in pneumonic pasteurelosis in sheep.

Journal Article
TL;DR: MECCF fruit possess significant hepatoprotective and antioxidant activity, and pretreatment of rats with MECCF decreases the elevated TB, SGOT, SGPT and ALP serum levels.
Abstract: The objective of present study was to explore the hepatoprotective and antioxidant profile of Citrullus colocynthis fruits. Hepatoprotective profile of methanolic extract of Citrullus colocynthis fruits (MECCF) was investigated on rats, which were made hepatotoxic using paracetamol. The antioxidant profile of MECCF was evaluated by conducting Catalase, Super oxide Dismutase, Lipid Peroxidation and Diphenyl Picryl Hydrazyl tests. During hepatoprotective investigation, the Paracetamol treated group II showed significant increase in total bilirubin (TB), serum glutamate oxaloacetate transaminase (SGOT), serum glutamate pyruvate transaminase (SGPT) and alkaline phosphatase (ALP) level. The results so obtained showed that pretreatment of rats with MECCF 300mg/kg p.o. decreases the elevated TB, SGOT, SGPT and ALP serum levels. Also, MECCF inhibitory profile was found comparable with toxicant group (Paracetamol 2g/kg, p.o.). The present study concludes that MECCF fruit possess significant hepatoprotective and antioxidant activity.