THE ROLE OF GENDER IN INORGANIC ARSENIC INDUCED OXIDATIVE STRESS AMONG BANGLADESHI POPULATION EXPOSED TO HIGH ARSENIC THROUGH DRINKING WATER

2011 ◽  
Vol 2011 (1) ◽  
Author(s):  
Nayar SULTANA ◽  
Chiho WATANABE ◽  
Hana FURUSAWA ◽  
Masahiro UMEZAKI ◽  
Tsukasa INAOKA
Keyword(s):  
Oxidative Stress ◽  
Drinking Water ◽  
Inorganic Arsenic ◽  
Bangladeshi Population ◽  
High Arsenic

scholarly journals Role of Cox-2 in Vascular Inflammation: An Experimental Model of Metabolic Syndrome

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Nicolás F. Renna ◽  
Emiliano R. Diez ◽  
Carina Lembo ◽  
Roberto M. Miatello
Keyword(s):  
Oxidative Stress ◽  
Metabolic Syndrome ◽  
Drinking Water ◽  
Experimental Model ◽  
Vascular Remodeling ◽  
Vascular Inflammation ◽  
Left Ventricular ◽  
Wky Rats ◽  
Cox 2

The objective of this work was to demonstrate the role of COX-2 enzyme at the vascular in experimental model of metabolic syndrome. SHR male WKY rats were employed; they were distributed in 8 groups (n=8each): control (W); W + L: WKY rats receiving 20 mg/kg of lumiracoxib by intraesophageal administration; SHR; SHR + L: SHR + 20 mg/kg of lumiracoxib by intraesophageal administration; Fructose-Fed Rats (FFR): WKY rats receiving 10% (w/v) fructose solution in drinking water during all 12 weeks; FFR + L: FFR + 20 mg/kg of lumiracoxib by intraesophageal administration; Fructose-Fed Hypertensive Rats (FFHR): SHR receiving 10% (w/v) fructose solution in drinking water during all 12 weeks; and FFHR + L: FFHR + 20 mg/kg of lumiracoxib by intraesophageal administration. Metabolic variables, blood pressure, morphometric variables, and oxidative stress variables were evaluated; also MMP-2 and MMP-9 (collagenases), VCAM-1, and NF-κB by Westernblot or IFI were evaluated. FFHR presented all variables of metabolic syndrome; there was also an increase in oxidative stress variables; vascular remodeling and left ventricular hypertrophy were evidenced along with a significant increase in the expression of the mentioned proinflammatory molecules and increased activity and expression of collagenase. Lumiracoxib was able to reverse vascular remodeling changes and inflammation, demonstrating the involvement of COX-2 in the pathophysiology of vascular remodeling in this experimental model.

scholarly journals Molecular Mechanism of Arsenic-Induced Neurotoxicity including Neuronal Dysfunctions

2021 ◽  
Vol 22 (18) ◽  
pp. 10077
Author(s):  
Manisha Thakur ◽  
Mahesh Rachamalla ◽  
Som Niyogi ◽  
Ashok Kumar Datusalia ◽  
Swaran Jeet Singh Flora
Keyword(s):  
Oxidative Stress ◽  
Drinking Water ◽  
Molecular Mechanism ◽  
Molecular Mechanisms ◽  
Arsenic Exposure ◽  
Inorganic Arsenic ◽  
Mitochondrial Oxidative Stress ◽  
Neurological Effects ◽  
Cellular Dna ◽  
Neurobehavioral Effects

Arsenic is a key environmental toxicant having significant impacts on human health. Millions of people in developing countries such as Bangladesh, Mexico, Taiwan, and India are affected by arsenic contamination through groundwater. Environmental contamination of arsenic leads to leads to various types of cancers, coronary and neurological ailments in human. There are several sources of arsenic exposure such as drinking water, diet, wood preservatives, smoking, air and cosmetics, while, drinking water is the most explored route. Inorganic arsenic exhibits higher levels of toxicity compared its organic forms. Exposure to inorganic arsenic is known to cause major neurological effects such as cytotoxicity, chromosomal aberration, damage to cellular DNA and genotoxicity. On the other hand, long-term exposure to arsenic may cause neurobehavioral effects in the juvenile stage, which may have detrimental effects in the later stages of life. Thus, it is important to understand the toxicology and underlying molecular mechanism of arsenic which will help to mitigate its detrimental effects. The present review focuses on the epidemiology, and the toxic mechanisms responsible for arsenic induced neurobehavioral diseases, including strategies for its management from water, community and household premises. The review also provides a critical analysis of epigenetic and transgenerational modifications, mitochondrial oxidative stress, molecular mechanisms of arsenic-induced oxidative stress, and neuronal dysfunction.

scholarly journals Evaluation the hypolipidemic and antioxidant efficacy of diosgenin extracted from fenugreek seeds in experimentally induced oxidative stressed male rats

2018 ◽  
Vol 11 (1) ◽  
pp. 35-45
Author(s):  
A Al-Mzaien
Keyword(s):  
Oxidative Stress ◽  
Drinking Water ◽  
Ethyl Acetate ◽  
Antioxidant Status ◽  
Density Lipoprotein ◽  
Atherogenic Diet ◽  
Male Rats ◽  
Significant Elevation ◽  
Fenugreek Seeds

This study was conducted to assess the antioxidant status and hypolipidemic role of purified diosgenin extracted from fenugreek seeds in hydrogen peroxide (H2O2) and atherogenic diet experimentally induced oxidative stress male rats. Hexane and chloroform were used for the extraction of diosgenin from ground fenugreek seeds. Purification of extracted fraction was carried out on Sephadex LH-20 column using ethyl acetate as eluent, homogenous symmetrical peak was obtained, and thin layer chromatography on silica gel confirmed that purified fraction is diosgenin in compression to standard diosgenin and the calculated Rf values. The antioxidant scavenging activity was carried out using 2, 2, 1 diphenyl- 1- picrylhydrazyl (DPPH) assay, the result showed that purified diosgenin has an antioxidant activity 13.68 μg/ml while the corresponding values for vitamin C and butylated hydroxyl toluene were 8.43 and 7.26 μg/ml respectively. Fifteen adult Albino male rats were randomly and equally divided into three groups, and treated for six weeks as follows; G1 group served as control, G2: Animals of this group were received drinking water containing 0.75% H2O2 and atherogenic diet, Group 3; Rats of this group were given drinking water containing 0.75% H2O2 and atherogenic diet plus 40 mg purified diosgenin/ kg B.W. dissolved in 0.5 ethyl acetate daily by gavages needle. Fasting blood samples were collected by cardiac puncture technique at 0, third and sixth weeks of experiment. The results revealed that rats in G2 exposed to oxidative stress (0.75% H2O2 plus atherogenic diet) showed a significant elevation (P<0.05) in serum total cholesterol (TC), triacylglycerol (TAG), low density lipoprotein- cholesterol (LDL-C) as well as in malondialdehyde (MDA), and significant suppression in serum high density lipoprotein- cholesterol (HDL-C) and glutathione (GSH) concentrations in comparison to the animals in the first group (G1 group). Intubation of 40 mg/kg B.W. of purified diosgenin was caused a significant alteration in the lipid profile of the treated group (G3), manifested by significant reduction (P<0.05) in serum TC, TAG, LDL-C and significant elevation in HDL-C. Antioxidant status also exhibits significant changes manifested by an elevation of serum GSH and reduction in MDA concentration in G3 group animals. This study has shown the significant role of diosgenin as hypolipidemic agent and its role in restores of the oxidative stress.

792: Role of Oxidative Stress in Tumorigenic Potential of Bladder Cancer Cells

2005 ◽  
Vol 173 (4S) ◽  
pp. 214-215 ◽  
Author(s):  
Daniel Cho ◽  
Xiao Fang Ha ◽  
J. Andre Melendez ◽  
Louis J. Giorgi ◽  
Badar M. Mian
Keyword(s):  
Oxidative Stress ◽  
Bladder Cancer ◽  
Cancer Cells ◽  
Tumorigenic Potential ◽  
Bladder Cancer Cells

Iron Metabolism in the Human Body and Setting its Hygienic Limits for Drinking Water. Review. Part 2

2020 ◽  
Vol 99 (5) ◽  
pp. 504-508
Author(s):  
Natalija A. Egorova ◽  
N. V. Kanatnikova
Keyword(s):  
Oxidative Stress ◽  
Drinking Water ◽  
Iron Overload ◽  
Iron Metabolism ◽  
Subcutaneous Tissue ◽  
Allergic Diseases ◽  
The Body ◽  
Urogenital System ◽  
High Iron Content ◽  
Labile Iron Pool

Iron is an assential element for the growth, division, differentiation and functioning of any cell in the body. Iron is virtually important for human and danger at the same time, because with excessive accumulation it causes oxidative stress with formation of highly active oxygen radicals and reactive form of nitrogen that can destroy cell membranes, proteins, nucleic acids, reduce cell viability, with, according to modern concepts, can contribute to the development of many diseases (cardiovascular, rheumatic, gastrointestinal, neurodegenerative, oncological, metabolic and others), and also accelerate the aging process. Part 1 of this review discussed the issues of iron metabolism in human, including its regulation at the cellular and systemic levels, the intake, transport, use, accumulation and export of iron in cells, the role of the labile iron pool in the cytoplasm of cells and plasma non-transferrin bound iron. Data are provided on the causes, frequency and significance of iron overload in the formation of free radicals and the development of oxidative stress. Part 2 of the review provides information on diseases associated with iron overload as well as information on ferroptosis - a new type of iron-dependent regulated cell death. Attention is paid to the works of domestic authors, where it was found that prolonged use of drinking water with a high iron content is unfavorable for the population and leads to an increase in the overall incidence, the development of the diseases of the blood, skin and subcutaneous tissue, musculoskeletal system, digestive system, urogenital system, and allergic diseases. Separate publications are cited on the possibility of a negative effect of iron at concentrations in water of 0.3 mg/l and lower. The material of the review emphasizes the preventive significance of caution attitude to regulating iron in the water in the Russian Federation, where 1/3 of the population uses iron-containing water for drinking, and substantiate the feasibility of establishing a hygienic limit for iron in water not higher than 0.3 mg/l.

Effect of Turmeric and Ginger on Lipid Profile in Male Rats Exposed to Oxidative Stress

2019 ◽  
Vol 10 (01) ◽  
Author(s):  
Eman A. Al-Rekabi ◽  
Dheyaa K. Alomer ◽  
Rana Talib Al-Muswie ◽  
Khalid G. Al-Fartosi
Keyword(s):  
Oxidative Stress ◽  
Hydrogen Peroxide ◽  
Drinking Water ◽  
Lipid Profile ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Male Rats ◽  
Control Group ◽  
Very Low Density Lipoprotein ◽  
Low Density

The present study aimed to investigate the effect of turmeric and ginger on lipid profile of male rats exposed to oxidative stress induced by hydrogen peroxide H2O2 at a concentration of 1% given with consumed drinking water to male rats. Methods: 200 mg/kg from turmeric and ginger were used, and the animals were treatment for 30 days. Results: the results showed a significant increase in cholesterol, triglycerides, low density lipoprotein (LDL), very low density lipoprotein (VLDL), whereas it explained a significant decrease in high density lipoprotein (HDL) of male rats exposed to oxidative stress when compared with control group. the results showed a significant decrease in cholesterol, triglycerides, (LDL), (VLDL), whereas it explained a significant increase in (HDL) of rats treated with turmeric and ginger at dose 200 mg/kg when compared with male rats exposed to oxidative stress.

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