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.
Cell Therapeutics, Inc. today announced that it has received a $5 million milestone payment from Teva Pharmaceutical Industries Ltd. related to the achievement of a sales milestone for TRISENOX (arsenic trioxide).
A dispute between a Colorado cardiologist and a Catholic hospital over what he says is a ban on discussing abortion with patients, even when a pregnancy threatens a woman's life, is part of today's health policy roundup from Colorado and California.
For the first time in more than 100 years, drug and dietary supplement manufacturers are updating the tests used to ensure that their products contain safe levels of metal impurities, and the stringent new requirements, instruments and costs are the topic of the cover story in the current edition of Chemical & Engineering News. C&EN is the weekly newsmagazine of the American Chemical Society, the world's largest scientific society.
Since the 1960s, it has been known that groundwater resources in certain provinces of China are contaminated with arsenic. Estimates of the numbers of affected people have risen year by year. In the most recent survey - conducted by the Chinese Ministry of Health between 2001 and 2005 - more than 20,000 (5%) of the 445,000 wells tested showed arsenic concentrations higher than 50 -g/L.
A new study confirms that exposure to low to moderate amounts of arsenic in drinking water can impair lung function. Doses of about 120 parts per billion of arsenic in well water-about 12 times the dose generally considered safe-produced lung damage comparable to decades of smoking tobacco. Smoking, especially by males, made arsenic-related damage even worse.
Key factors have been identified that help determine the vulnerability of public-supply wells to contamination. A new USGS report describes these factors, providing insight into which contaminants in an aquifer might reach a well and when, how and at what concentration they might arrive.
A new study published this week has found that the build-up of harmful chemicals in the body is affecting people of all social standings -- not just those from economically deprived backgrounds as previously thought.
High levels of arsenic in rice have been shown to be associated with elevated genetic damage in humans, a new study has found.
The U.S. Food and Drug Administration today proposed an "action level" of 10 parts per billion (ppb) for inorganic arsenic in apple juice. This is the same level set by the U.S. Environmental Protection Agency for arsenic in drinking water.
This week the World Health Organization released its newly updated 4th WHO Model List of Essential Medicines for Children, in which three treatments developed by the Drugs for Neglected Diseases initiative and its partners have now been included.
Science knows that arsenic and estrogen can cause cancer. At certain very low levels, the chemicals offer little to no threats to human health.
Days after two landmark resolutions were adopted at the World Health Assembly - on neglected tropical diseases and on research and development, financing and coordination for the health needs of developing countries - over 400 scientists, representatives and ministers of health, ambassadors, national control programme representatives, African regulators, health workers, public health experts, and activists from 21 African countries and 10 others from around the world gather in Nairobi to take stock of health innovation for neglected diseases in Africa over the past decade.
A new review by researchers at the University of Maryland School of Medicine highlights a large body of published research demonstrating how modified citrus pectin, works against cancer.
In the race to protect society from infectious microbes, the bugs are outrunning us. The need for new therapeutic agents is acute, given the emergence of novel pathogens as well as old foes bearing heightened antibiotic resistance.
University of Utah metallurgists used an old microwave oven to produce a nanocrystal semiconductor rapidly using cheap, abundant and less toxic metals than other semiconductors. They hope it will be used for more efficient photovoltaic solar cells and LED lights, biological sensors and systems to convert waste heat to electricity.
Results from a Chinese study suggest that exposure to arsenic through contaminated drinking water may increase a person’s risk for developing hypertension.
Arsenic has many facets. Arsenic compounds are not only deadly poisons to which many crowned heads fell victim in previous eras, but in small doses arsenic was also given to horses because it promotes appetite and the growth of hair. In this way, horse traders could revitalize old nags and sell them for more money.
The mammalian target of rapamycin, mTOR is a central integrator of the cell that coordinates growth factor receptor signaling with energy and nutrient status to control a wide array of activities, including the regulation of cellular proliferation and survival.
The mystery of how arsenic levels in beer sold in Germany could be higher than in the water or other ingredients used to brew the beer has been solved, scientists announced here today at the 245th National Meeting & Exposition of the American Chemical Society, the world's largest scientific society.
Scientists provided a glimpse today based on an analysis of a museum collection of patent medicines used in turn-of-the-century America.
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