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.
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.
Criminal gangs are increasingly using the internet to market life-threatening counterfeit medicines and some have even turned up in legitimate outlets such as pharmacies, according to a review led by Dr Graham Jackson, editor of IJCP, the International Journal of Clinical Practice, and published in the March edition.
Rice is among the plants that are efficient in taking up arsenic from the soil, environmental chemist Brian Jackson of Dartmouth College in Hanover, N.H., and his co-authors said in Thursday's issue of the journal Environmental Health Perspectives. Long-term exposure to extremely high levels of inorganic arsenic can increase the risk of lung, liver and bladder cancer as well as miscarriage and infertility.
As people seek healthier dietary regimens they often turn to things labeled "organic." Lurking in the background, however, is an ingredient that may be a hidden source of arsenic-an element known to be both toxic and potentially carcinogenic.
Grand Challenges Canada today announced 15 grants valued in total at more than $1.5 million awarded to some of Canada's most creative innovators from across the country in support of their work to improve global health conditions.
The United States has temporarily halted shipments of imported orange juice from all countries and said it would destroy or ban products containing even low levels of a banned fungicide.
George Miller developed an ulcer on his bottom lip that began to bleed. His doctor sent cell scrapings to a pathologist, and diagnosed Miller with squamous cell carcinoma (SCC). According to TMD Limited, a medical tourism company, squamous cell carcinoma is the 2nd most common cancer in humans and other animals.
Studies have shown that rice takes up more arsenic from soil than other crops. Now a new study shows that higher arsenic levels are ingested by women who eat as little as half a cup of cooked rice in a day. Currently, there are no limits on the amount of allowable arsenic in rice in the United States. But the Environmental Protection Agency has set arsenic limits in water of 10 parts per billion.
ZIOPHARM Oncology, Inc. announced today that it has received an allowance from the European Patent Office for Patent Application No. 05 821 125.1, entitled "Salts of Isophosphoramide mustard and analogs thereof as anti-tumor agents" with claims directed to pharmaceutical compositions of a novel DNA cross-linker, including palifosfamide and their use in treating cancer.
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