DFG presents the 2004 MAK and BAT value lists
...sification in the new categories 4 and 5, the food additive 3,5-di-tert-butyl-4-hydroxytoluol (BHT) was reclassified in category 4 with a MAK value of 20 mg/m 3 . The trimethylpentane isomers had to be reclassified into carcinogenicity category 3A because critical data for deriving a MAK value is lacking. Onc...... cinnamon leaf oil and is used worldwide as a food additive and flavoring agent. A formulation using the compound could be sprayed just like a pesticide, but without the potential for adverse health effects plus the added bonus of a pleasant smell. Bark oil from the Cinnamomum cassia tree is the most commo...Water study yields a few surprises for New England
... Levels of organic compounds, such as the gasoline additive MTBE and solvents used in industrial cleaners, wer...r, many manmade contaminants, such as the gasoline additive MTBE, routinely were found in ground waters used for drinking. In the area of Eastern New England...Natural, man-made mix promises biggest landscape plant growth
...ut a recent study points to an inexpensive natural additive that makes better use of some fertilizers, saving not only money but improving the environment, according to Texas Agricultural Experiment Station researchers. "When a plant suffers from stress, it suffers just like when we are stressed," said Dr....Other highlights of the March 17 issue of JNCI
...isk HPV and heavy alcohol consumption, but only an additive effect between detection of high-risk HPV and tobacco use. The authors conclude that HPV testing using an oral rinse may provide an early biomarker for HPV-associated head and neck cancer. Contact: Dan McMillan, University of Iowa, 319-335-6835, da...Toxin combo common in fish appears capable of impairing motor skills
...ld seriously consider the possible impact of their additive toxic effects on human health," said Susan L. Schantz, a professor of veterinary biosciences at the University of Illinois at Urbana-Champaign. Previous laboratory studies had suggested that the two chemicals act together to impair nervous...Out-of-balance ecosystems play role in demise of amphibian populations
...changes in all of these factors, and they may have additive or synergistic effects, resulting in increased parasite infections and associated impacts on amphibians," he added. "Re-establishing the structural and biological diversity of amphibian habitats is clearly worth a closer look."...UT Southwestern researchers study benefit of exercise, medication on depression
...for the study. "Exercise may have a synergistic or additive effect combined with anti-depressant medication, which could provide significant benefits over singular treatment methods," he said. "There also is some suggestion that exercise can change neurotransmitter levels, like those of serotonin, in the brai...NAFTA arbitrators in environmental case agree to formal public input, a first for trade hearings
...estors' rights when it banned a polluting gasoline additive manufactured in Canada. Methanex, of British Colu... regulations that phase out the company's gasoline additive MTBE due to concerns about groundwater poisoning caused by leaking storage containers and the produc...New device can help defend against novel biological agents
...n and paraoxon, and two common pollutants, the gas additive MTBE and hexachromium, the pollutant that Erin Brochovich made famous. A paper that provides detailed instructions on how to modify the Cytosensor and multipotentiostat to make a four-channel microphysiometer has been accepted for publication by Huma...Researchers probe how microbes speed up acid production at mining sites
...of oxidation produced by the mixed species was not additive compared to oxidation by individual species, however. ''The projects show that there is a fundamental difference between how one organism carries out a process and how a group does so,'' said Bostick. This study is a continuation of a pioneering mole......is the main ingredient in the commonly used flavor additive MSG (monosodium glutamate), which may explain the ...ificial sweetener or that block taste, such as an additive that could be used to block bitter tastes." In the study, Liman and Liu looked closely at a prote...New advances in thrombosis help further understanding of disease prevention
... the study. "Razaxaban shows future promise as an additive drug and may help to reduce thrombosis in patients undergoing major orthopedic surgery." Patients undergoing elective primary total knee replacement surgery were randomly assigned to one of four dose groups for razaxaban (25 mg, 50 mg, 75 mg, or 1...Lycopene's anti-cancer effect linked to other tomato components
...products and diet restriction may have independent additive benefits. Other unpublished data in cell culture s...als in tomatoes and to determine whether there are additive or synergistic effects among the compounds. "Our findings strongly suggest that risks of poor dietar...Fruits offer powerful protection from skin cancer
...(Abstract 1385) Perillyl alcohol (PEOH) is a food additive and a compound found naturally in tart cherries, mint and citrus fruits, such as orange peel. Evidence has shown that this class can inhibit the growth of many cancers and pre-cancerous lesions by helping rid the body of cancer-causing chemicals or ...Plant diversity threatened by climate change and buildup of greenhouse gas, study reveals
...percent). "One possible reason we see this overall additive response is that the mechanisms that are driving the changes are not interacting," Field said a finding that could prove beneficial in forecasting how global environmental changes will affect plant diversity in other ecosystems. "We hope to move int...3-D imaging inside living organism, using quantum dots
...ons, striking a molecule at the same time, with an additive effect. Under the conditions used, this only occurs at the focus of the laser, so only at that point is the molecule excited to a state that results in fluorescence emission. This excitation is the same as if it arose from the absorption of a single ...War on germs gets cutting-edge weapon from ancient world technique
...e new finishes by developing an inorganic, ceramic additive that ensures the slow release of silver ions over a long period of time. Antimicrobial powder coatings are currently in use at the new City of Hopes Helford Clinical Research Hospital in Duarte, California, on ductwork, door handles and hardware and...Tapeworm's chemical trick could make drugs more effective
...ds, is cheap and easy to synthesize. Its use as an additive to medicines has been patented by the Wisconsin Alumni Research Foundation. "Many drugs are absorbed at less than 50 percent from the intestine," says Oaks. "The key will be can we use cyclic GMP with certain kinds of drugs to increase their level of...... could then be compared to the human genome. "The additive collective sequence differences or divergence of these nonhuman primates as a group was comparable to that of humans and mice," Rubin says. "This suggests that deep sequence comparisons of numerous primate species should be sufficient to identify sig...