Daily non-political popular news in brief.
No-stick chemicals can mimic estrogen
12-02-2006 · Science News OnlineSome of the perfluorinated compounds used to impart nonstick properties to fabrics and cookware can not only activate a receptor for sex hormones but also inappropriately feminize fish.
Read more »
Keywords: no-stick, chemicals, mimic, estrogen, stick, chemical
« Previous | Next »
Similar news on "No-stick chemicals can mimic estrogen":
- What's in the water? Estrogenic activity documented in fish caught in Pittsburgh's rivers
04-17-2007 · EurekAlert!
A study from the University of Pittsburgh School of Medicine suggests that fish caught in Pittsburgh rivers show evidence of estrogen-like activity, indicating that chemicals that mimic the female hormone may be making their way into the region's waterways. The study, being presented at the annual meeting of the American Association for Cancer Research, also found that when the researchers treated breast cancer cells in culture with fish extracts, the cells grew at increased rates.
Similar news · Read more »
- Extracts of catfish caught in polluted waters cause breast cancer cells to multiply
11-07-2007 · EurekAlert!
Exposing estrogen-sensitive breast cancer cells to extracts of fish caught in areas with heavy sewer and industrial waste causes the cells to multiply, according to a University of Pittsburgh study. The study, which tested extracts from fish caught in the Allegheny and Monongahela rivers near Pittsburgh, suggests that fish contain substances that mimic the actions of estrogen, the female hormone, and that chemicals that mimic estrogen may be making their way into the region's waterways.
Similar news · Read more »
- Pesticides mimic estrogen in shellfish
12-16-2006 · Science News Online
Two common water pollutants can function in shellfish as estrogen does, but they have different behavioral effects on two species.
Similar news · Read more »
- Parasitic Plants Sniff Out Hosts
09-30-2006 · ScienceDaily
Parasitic plants do not haphazardly flail about looking for a host but sense volatile chemicals produced by other plants and identify potential hosts by their emissions, according to a team of Penn State chemical ecologists.
Similar news · Read more »
- Similar brain chemicals influence aggression in fruit flies and humans
04-22-2007 · EurekAlert!
Serotonin is a major signaling chemical in the brain, and it has long been thought to be involved in aggressive behavior in animals and humans. Another brain chemical signal, neuropeptide Y (aka neuropeptide F in invertebrates), is also known to affect an array of behaviors in many species, including territoriality in mice. A new study at The Neurosciences Institute (San Diego) shows that these two chemicals also regulate aggression in the fruit fly, Drosophila melanogaster.
Similar news · Read more »
- How 'IAP antagonist' chemicals kill tumors
11-15-2007 · EurekAlert!
Chemical compounds specially designed to neutralize proteins that would otherwise allow tumor cells to cheat death have been recognized for some time by scientists as a promising new avenue for cancer therapy. Now, two studies in the Nov. 16, 2007 issue of the journal Cell, a publication of Cell Press, provide insight into just how these antagonists of the anti-death -- so-called Inhibitor-of-Apoptosis (IAP) -- proteins work to fight tumors.
Similar news · Read more »
- Nanoparticles that cancer cells can't resist
07-11-2007 · EurekAlert!
A technique that turns cancer cells into miniature magnets could make biopsies more efficient. Researchers in Alburquerque have come up with the idea of using magnetic nanoparticles. The particles are encased in a biocompatible material and then coated with antibodies that bind to chemicals found only in cancer cells. When injected into the body, the particles stick to cancer cells, turning them into miniature magnets. These cells can then be drawn towards magnets encased in the end of a biopsy needle.
Similar news · Read more »
- Researchers develop simple method to create natural drug products
09-04-2007 · EurekAlert!
Until now, only the intricate machinery inside cells could take a mix of enzyme ingredients, blend them together and deliver a natural product with an elaborate chemical structure such as penicillin. Researchers at UC San Diego's Scripps Institution of Oceanography and Skaggs School of Pharmacy and Pharmaceutical Sciences and the University of Arizona have for the first time demonstrated the ability to mimic this process outside of a cell.
Similar news · Read more »
- Toxic releases down from North American industry leaders, increasing from other facilities
10-18-2007 · EurekAlert!
The latest Taking Stock report from the Commission for Environmental Cooperation reveals a continued decline in releases of toxic chemicals to the environment -- 15 percent for the US and Canada from 1998 to 2004 -- driven by a group of industrial facilities that are the largest generators of emissions.The report also, however, reveals a substantial increase in chemical releases and transfers by a much larger group of industrial facilities that report lower emission volumes.
Similar news · Read more »
- Some antipsychotic drugs may be missing their mark
12-31-2007 · EurekAlert!
Drugs that treat depression and schizophrenia might not be triggering the most appropriate response in brain cells, new research suggests. This study examined the early chemical events that happen when a particular serotonin receptor on brain cells is stimulated by serotonin and by a hallucinogenic agent thought to mimic serotonin. The findings show that although both compounds activate this receptor, they trigger different chemical pathways inside the cell.
Similar news · Read more »