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Journal ArticleDOI

Role of mercury toxicity in hypertension, cardiovascular disease, and stroke

Mark C. Houston
- 01 Aug 2011 - 
- Vol. 13, Iss: 8, pp 621-627
TLDR
This poster presents a probabilistic procedure to assess the importance of baseline IgE levels in the decision-making process and shows clear patterns in response to known immune-inflammatory events.
Abstract
Mercury has a high affinity for sulfhydryl groups, inactivating numerous enzymatic reactions, amino acids, and sulfur-containing antioxidants (N-acetyl-L-cysteine, alpha-lipoic acid, L-glutathione), with subsequent decreased oxidant defense and increased oxidative stress. Mercury binds to metallothionein and substitute for zinc, copper, and other trace metals, reducing the effectiveness of metalloenzymes. Mercury induces mitochondrial dysfunction with reduction in adenosine triphosphate, depletion of glutathione, and increased lipid peroxidation. Increased oxidative stress and reduced oxidative defense are common. Selenium and fish containing omega-3 fatty acids antagonize mercury toxicity. The overall vascular effects of mercury include increased oxidative stress and inflammation, reduced oxidative defense, thrombosis, vascular smooth muscle dysfunction, endothelial dysfunction, dyslipidemia, and immune and mitochondrial dysfunction. The clinical consequences of mercury toxicity include hypertension, coronary heart disease, myocardial infarction, cardiac arrhythmias, reduced heart rate variability, increased carotid intima-media thickness and carotid artery obstruction, cerebrovascular accident, generalized atherosclerosis, and renal dysfunction, insufficiency, and proteinuria. Pathological, biochemical, and functional medicine correlations are significant and logical. Mercury diminishes the protective effect of fish and omega-3 fatty acids. Mercury inactivates catecholaminei-0-methyl transferase, which increases serum and urinary epinephrine, norepinephrine, and dopamine. This effect will increase blood pressure and may be a clinical clue to mercury-induced heavy metal toxicity. Mercury toxicity should be evaluated in any patient with hypertension, coronary heart disease, cerebral vascular disease, cerebrovascular accident, or other vascular disease. Specific testing for acute and chronic toxicity and total body burden using hair, toenail, urine, and serum should be performed.

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Unsafe Occupational Health Behaviors: Understanding Mercury-Related Environmental Health Risks to Artisanal Gold Miners in Ghana

TL;DR: Interestingly, artisanal gold miners who were still working and who had attained either primary or secondary education were less likely to know the environmental and health effects of Hg compared with their counterparts who had no formal education, while individuals who perceived their health-related work conditions to be excellent had very low to low levels of knowledge.
Journal ArticleDOI

Airborne metals exposure and risk of hypertension in the Sister Study.

TL;DR: It was found that living in areas of higher exposure to arsenic, lead, chromium, cobalt, and manganese was related to higher risk of hypertension, whereas live in areas with higher selenium was inversely related to therisk of hypertension.
Journal ArticleDOI

Combined impact of lead, cadmium, polychlorinated biphenyls and non-chemical risk factors on blood pressure in NHANES

TL;DR: A novel modeling approach was developed to evaluate the combined impact of lead, cadmium, polychlorinated biphenyls (PCBs), and multiple non-chemical risk factors on four blood pressure measures using data for adults aged ≥ 20 years from the National Health and Nutrition Examination Survey.
Journal ArticleDOI

The protective role of olive oil hydroxytyrosol against oxidative alterations induced by mercury in human erythrocytes

TL;DR: Results indicate that HT treatment prevents the increase in hemolysis and Reactive Oxygen Species (ROS) generation induced by exposure of cells to micromolar HgCl2 concentrations as well as the decrease in GSH intracellular levels.
Journal ArticleDOI

Insights on alpha lipoic and dihydrolipoic acids as promising scavengers of oxidative stress and possible chelators in mercury toxicology.

TL;DR: The compound α-LA is suggested for heavy metal detoxification, in particular for supporting the mercury (Hg) detoxifying process, and the mechanisms of actions ofα-LA and DHLA as potential antioxidants towards Hg-induced toxicity are discussed.
References
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Journal ArticleDOI

Dietary supplementation with n-3 polyunsaturated fatty acids and vitamin E after myocardial infarction: results of the GISSI-Prevenzione trial

Roberto Marchioli
- 07 Aug 1999 - 
TL;DR: Dietary supplementation with n-3 PUFA led to a clinically important and statistically significant benefit and vitamin E had no benefit and its effects on fatal cardiovascular events require further exploration.
Journal ArticleDOI

Environmental Health Criteria

Journal ArticleDOI

Effects of changes in fat, fish, and fibre intakes on death and myocardial reinfarction: diet and reinfarction trial (dart)

TL;DR: A modest intake of fatty fish (two or three portions per week) may reduce mortality in men who have recovered from MI.
Journal Article

The Environmental Protection Agency

TL;DR: A case study explores the background of the digitization project, the practices implemented, and the critiques of the project, which aims to provide access to a plethora of information to EPA employees, scientists, and researchers.
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