Tag: "carcinogenic" at biology news
Genetic Makeup May Explain Why Some Women Smokers Develop Breast Cancer While Others Don't, UB Study in JAMA Reports
...tyltransferase (NAT2), an enzyme known to detoxify carcinogenic
compounds in cigarette smoke, and who smoked more ...n genotype for NAT2 had higher levels of tobacco's carcinogenic
compounds in their bloodstream, and were at higher risk of developing bladder cancer, a disease know...
Ten Years of Progress For Superfund Basic Research Program
...they're broken down by thebacteria inside you into carcinogenic
materials." Again, the main problem is that azo dyes are not readilydegraded in nature. Bishop has designed bioreactors in hislaboratory which use thin biofilms of Sphingomonas and othermicrobes to break down the dyes. He believes his novel two-stepr...
DNA Enzyme Works In Crystal Form; Yields New Insights Into Gene Copying
...al and obtainsnapshots revealing precisely how the carcinogenic
compounds bind themselves tothe polymerase, perturbing its relationship with the DNA and causing errors. "Our first glimpses of the binding of carcinogens with polymerase showvery dramatic changes in the polymerase," Beese said. "I think thes...
Selenium Soil Contamination: Possible New Approach Identified
...ium is a trace mineral that can be highly toxic or carcinogenic
tohumans and wildlife. The poisoning deaths of wild birds at the KestersonReservoir in the San Joaquin Valley in the early 1980s have been attributed toselenium in drainage from irrigation water. The incident was a graphicdemonstration of how agric...
Rodent Cancer Data To Be Reviewed On Food Flavoring, Solvent, Cosmetic
Ingredient, Anabolic Steroid And Embalming Fluid
... studies of five substances and the strength ofany carcinogenic
activity as interpreted by the National Toxicology...evidence"is the strongest category of evidence for carcinogenic
activity in NTP studies.However, further studies are underway to examine the relevance of these find...
Increase In Number Of Diesel Cars Is Counterproductive For Environmental Goals
... new dieselcars are estimated to be 3-4 times more carcinogenic
than emissions from petrolcars. A moderndiesel also emits about 10-15 times more particulates than a modern petrol car.New diesels arehowever much better than older ones. The calculation that the Swedish EPA has done concerning the environmental cost...
UCSF Study Finds No Association Between Hair Dye And Non-Hodgkin Lymphoma
...nued some hair color products that were considered carcinogenic
inanimals. But Holly said that critics of these animal studies assert thatresearchers used high concentrations that would not normally be used by humansto evaluate the risk of exposure to chemicals used in hair dyes. The Northern California Ca...
Genes Linked To Early Onset, Location Of Hereditary Colon Cancer
...d GSTT1. NAT1 is responsible for processing highly carcinogenic
aromatic amines found frequently in the environment, in the diet and in cigarette smoke. The GST enzymes detoxify a variety of carcinogens and toxic drugs. The researchers found that patients with one form of the NAT1 gene, known as NAT1-10, and who ...
Popular Diet Supplement May Be A Cancer Risk
...picolinate are needed toevaluate its mutagenic and carcinogenic
potentials. In addition, development ofother readily absorbable sources of chromium that lack the DNA-damaging abilityof chromium picolinate seems warranted."...
Federally Sponsored Panel To Look At Data On Plasticizers: Do They Harm Reproduction, Or Children's Development?
...ct. Some phthalates have already been shown to be carcinogenic
at somelevel in animals. As a result, the makers of plastic toys, teethers andpacifiers say they have reduced or restricted some phthalates' use....
List of MAK and BAT values 1999 published - New classification for chemical substances in the workplace air
...ious year there were 64changes and new entries. 16 carcinogenic
substances were reviewed and/or classified. It sho...balite andtridymite, were classified as category 1 carcinogenic
substances (substancesthat have been shown to produce cancer in humans). Epidemiological studies as ...
Congress briefs: International congress on ecosystem health
...lated to groundwater contamination by the possibly carcinogenic
gasolineadditive known as MTBE. Fogg notes that, as of last September, MTBE had beenfound at levels ranging from 0.5 to 20 mg per liter at 55 percent ofCalifornia's leaking underground fuel sites. At that time, 35 of nearly 3,000public drinking wat...
University of New Orleans researcher develops nontoxic corrosion inhibitor
... it has the capability to eliminate the problem of carcinogenic
coatings. This is the transition from 'we don't give a damn if we pollute the world' to 'we better stop polluting the world.' " The University is in the final stages of the patent process regarding the corrosion inhibitor....
Shark cancers cast more doubt on cartilage pills
...ation from humans, which reduces their exposure to carcinogenic
pollutants and the likelihood that sharks with tumors will be caught, Ostrander explains. Proponents of shark cartilage also selectively used scientific results to bolster their case, he notes. For example, a single effort to give sharks tumors...
Adding acetone to compost remediates chunk TNT contaminated soil
...the soil leaves small particles of the potentially carcinogenic
substance. Researchers have found that by adding a... promising technique. Although TNT is considered a carcinogenic
compound, microbes normally found in the soil will eat it with great relish. That is, if the relish ...
Fact sheet: the Report on Carcinogens - 9th edition
...balance potential benefits of exposures to certain carcinogenic
substances in special situations. For example, nu...address potential benefits of exposures to certain carcinogenic
substances. In this instance, the benefits of exposure to the substance have been determined by the...
Can heavy alcohol use lead to some kinds of cancer?
...es "strong evidence" that salivary acetaldehyde is carcinogenic
in humans. Parotid glands are the main saliva-prod..."even the individuals with normal ALDH can achieve carcinogenic
acetaldehyde levels in the saliva." Salaspuro said his study's findings are important on several dif...
Scientists combine chemistry and bioremediation to clean cadmium from soil
...earch at Brookhaven. Cadmium is a highly toxic and carcinogenic
metal used in metal plating, nickel-cadmium batteries, pigments, plastic stabilizers, pesticides and more. It is most toxic in its free (ionic) form, which easily dissolves and moves through water, threatening groundwater supplies. There are two bas...
UF research shows that a fern soaks up deadly arsenic from soil
...plant ever found to "hyperaccumulate" arsenic -- a carcinogenic
heavy metal often used as an herbicide -- the fern may prove useful in cleaning up thousands of sites contaminated by arsenic from industrial, mining, agricultural or other operations around the world. "It has great potential for remediating thes...
Important pathogens and cures belong to little-known group of fungi
...s studying medicinal, pharmacological, antibiotic, carcinogenic
and food-production agents would do well to study ...g peanuts and corn) that are among the most potent carcinogenic
compounds known. Other members of the Eurotiales are used to ripen bleu cheese and are pathogens o...
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