Arsenic is a naturally occurring element widely distributed in the earth’s crust. In the environment, arsenic is combined with oxygen, chlorine, and sulfur to form inorganic arsenic compounds. Arsenic in animals and plants combines with carbon and hydrogen to form organic arsenic compounds.
Breathing high levels of inorganic arsenic can give you a sore throat or irritated lungs.
Ingesting very high levels of arsenic can result in death. Exposure to lower levels can cause nausea and vomiting, decreased production of red and white blood cells, abnormal heart rhythm, damage to blood vessels, and a sensation of “pins and needles” in hands and feet.
Ingesting or breathing low levels of inorganic arsenic for a long time can cause a darkening of the skin and the appearance of small “corns” or “warts” on the palms, soles, and torso.
As part of an ongoing and proactive effort to monitor food safety and address contaminants in food, the U.S. Food and Drug Administration today released preliminary data on arsenic levels in certain rice and rice products. The data are part of a larger FDA data collection and analysis about arsenic levels in rice and is based on the first set of approximately 200 samples of rice and rice products collected in the U.S. marketplace.
The latest issue of Pathogens and Global Health highlights the current debate surrounding the under-investigated, and politically sensitive, issue of counterfeit medicine. Issue 106.2 includes an interview with Dr Paul Newton, Head of the Laos arm of the Wellcome Trust's Major Overseas Programmes, and a number of articles highlighting the technological innovations and field initiatives that are challenging this threat to global health.
Elderly patients with acute promyelocytic leukemia have a high rate of response to arsenic trioxide, say researchers who believe the drug should be a first-line treatment in this population.
Scientists of the Antwerp Institute of Tropical Medicine (ITG) opened a new front against the cause of sleeping sickness. This parasite is transmitted between humans by tsetse flies. The researchers learned a bacterium living in those flies how to produce antibodies against the parasite. Application in the field is still a long way of, but the technique shows quite some promise.
Queen's University Belfast has won a top award in the national campaign to find Britain's greenest companies, councils and communities.
Environmental exposure to arsenic significantly reduces semen quality in Chinese men, research shows.
Toxic chemicals wreak havoc on cells, damaging DNA and other critical molecules. A new study from researchers at MIT and the University at Albany reveals how a molecular emergency-response system shifts the cell into damage-control mode and helps it survive such attacks by rapidly producing proteins that counteract the harm.
Research carried out at the University of Gothenburg may lead to more effective arsenic-containing drugs. The results may also lead to more resistant plants, and crops with a limited absorption and storage of arsenic.
The Engineering and Physical Sciences Research Council (EPSRC) will help the UK's world-leading researchers in synthetic biology to establish platform technology in the emerging field with a new grant of almost -5 million. Platform technology is the crucial next step necessary for applications to be produced and commercialised.
As part of its ongoing efforts to help ensure the quality of medicines, the U.S. Pharmacopeial Convention (USP) has announced two new standards related to elemental impurities: General Chapters <232> Elemental Impurities-Limits and <233> Elemental Impurities-Procedures. The new standards provide procedures for the detection of selected impurities in drug products based on modern analytical methods, as well as acceptable limits for their presence based on toxicity data and exposure levels.
The National Institute of Environmental Health Sciences (NIEHS), part of the National Institutes of Health, has renewed funding for the Superfund Research Program (SRP) at the University of California, San Diego. Over the next five years, the $15 million grant will fund continued research on the molecular and genetic consequences of exposure to uncontrolled toxicants from Superfund and other hazardous waste sites.
Creators of a nanotech-based system that captures carbon dioxide directly from the atmosphere within a submarine, while providing a more environmentally friendly removal process, have won the Federal Laboratory Consortium Interagency Partnership Award for 2012. The technology - Self Assembled Monolayers on Mesoporous Supports, or SAMMS - is destined for incorporation into future submarines to improve air quality for sailors who serve on them.
In a joint study, researchers at the Johns Hopkins Bloomberg School of Public Health and Arizona State University found evidence suggesting that a class of antibiotics previously banned by the U.S. government for poultry production is still in use. Results of the study were published March 21 in Environmental Science & Technology.
Researchers at the National Institutes of Health have discovered how exposure to arsenic can turn normal stem cells into cancer stem cells and spur tumor growth. Inorganic arsenic, which affects the drinking water of millions of people worldwide, has been previously shown to be a human carcinogen.
The American College of Occupational and Environmental Medicine (ACOEM) has joined the American Heart Association, the American Lung Association, and other leading organizations to formally oppose S.J. Res. 37, a resolution by Senator James Inhofe (R-Okla) that employs the Congressional Review Act to reverse the U.S. Environmental Protection Agency's (EPA) Mercury and Air Toxics Standards for Power Plants.
University of Melbourne's Dr Dora Pearce is urging for more testing of soil and water in central Victoria's Goldfields region to address the possible threat of cancer caused by arsenic. She has worked on research examining the link between elevated levels of arsenic caused by historic gold mining and cancer in the region.
Galectin-3 sounds like a planet out of "Star Trek," but it can be much more ominous. Recently, distinguished integrative physician Isaac Eliaz, M.D., presented breakthrough research demonstrating that the protein Galectin-3 is an active biomarker for numerous life-threatening diseases. Even more importantly, Dr. Eliaz showed how Modified Citrus Pectin (MCP) binds and blocks Galectin-3 throughout the body.
Thermo Fisher Scientific Inc., the world leader in serving science, today introduced the Thermo Scientific Dionex ICS-5000, a capillary high-pressure ion chromatography system that increases separation speeds and provides sharper peaks for high-efficiency ion chromatography.
Monitoring the construction of wells, avoid over-exploiting cold groundwater close to hot groundwater, and controlling mineral water extraction. These are the recommendations from the Polytechnic University of Catalonia and the University of Barcelona, after analysing the contamination of La Selva geothermal system, above all by arsenic pollution.
One of the first large-scale genomic studies conducted in a developing country has discovered genetic variants that elevate the risk for skin lesions in people chronically exposed to arsenic. Genetic changes found near the enzyme for metabolizing the chemical into a less toxic form can significantly increase an individual's risk for developing arsenic-related disease.
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