Essential smell gene may provide key to new insect repellents
...ther the olfactory neurons of the mutant flies had certain receptors and where these were located. In flies lacking Or83b receptors, the other smell receptors ended up in the wrong part of the nerve cells. Instead of being located at the ends of the cell dendrites, where they would be exposed to odor molecul...Flame retardants found on supermarket shelves
...in humans across the globe, but scientists are not certain how they are getting there. Our paper is the first U.S. market basket food survey for brominated flame retardants, says the studys lead author Arnold Schecter, M.D., M.P.H., an environmental health expert at the University of Texas School of Publi...Select research highlights from current AACR journals
...gent used in cancer therapy for ovarian cancer and certain bone marrow tumors. In rat models for fibrosarcomas, Abdel-Wahab et al. documented that heat treatment with warm water heightened the response of tumors to high doses of melphalan. The effect was synergistic, but not related to heat-promoted increase...Purdue study finds antioxidant protects metal-eating plants
...- An antioxidant, a type of compound that prevents certain types of damage to living cells, appears to allow ... fundamental question for researchers studying how certain types of plants tolerate levels of metals in their tissues that are toxic to most other plants. "We...NHGRI launches Centers for Excellence in Ethical, Legal, and Social Implications Research
... traits that are possibly found more frequently in certain populations has the potential to stigmatize both individuals and groups. The Stanford center will work to identify and understand the issues related to this genetic research, provide consultation and guidance to genetic researchers on these issues, a...Anti-cancer compound in vegetables found to block late-stage breast-cancer cell growth
...AMPAIGN, Ill. -- A well-known anti-cancer agent in certain vegetables has just had its reputation enhanced. ...be possible that ingesting SUL in combination with certain natural compounds or drugs could enhance their anticancer effectiveness and reduce side effects." Ac...Green tea research leads to gum and other products
...e cell damage. Chronic exposure to carcinogens and certain drugs also can damage salivary gland cells. Dr. Hsu and his colleagues found that when they added EGCG to cells, the polyphenols increased ROS levels in cancer cells but reduced them in healthy salivary gland and skin cells. "All of our data indicate...Analysis of biological clock may lead to greater understanding of human disease
... fruit fly, setting off reactions of proteins at a certain rate depending on the amount of light. The reactions set the clock. There are key proteins and two key feedback loops involved, making the system a hierarchical control scheme, a design tool often used in engineering. The mechanism is called a negati...Mouse study shows NPAS3 and NPAS1 genes may be linked to psychosis
...es on and off in brain cells. "These mice display certain deficits that are potentially consistent with schizophrenia," said Dr. Steven McKnight, chairman of biochemistry at UT Southwestern and senior author of the study that will appear in an upcoming issue of the Proceedings of the National Academy of Sci...Probing the surface of white blood cells to enhance immune system medicine
... blood cells and challenge assumptions about how a certain immunodeficiency disorder affects the white blood cell surface in the September 1 issue of Blood, the journal of the American Society of Hematology. Their findings could have a large impact on treatments for autoimmune diseases such as diabetes, rheu...New tool predicts how long pollutants will stay in soil
...athematical tool that accurately predicts how long certain pollutants -- including pesticides and pharmaceuticals -- will remain in soil. The work is timely because researchers and public officials have become increasingly concerned about pharmaceuticals and personal care products that have been detected in...Streptococcus infects humans by thwarting blood clotting
...partially explain differences in susceptibility to certain infection in different people. Thus, he said, his laboratory is exploring the genetic variations in the blood-clotting system that might affect risk factors for infection. "Although this is speculation at this point, it might ultimately be possible t...Washington University in St. Louis plays key role in sequencing moss genome
... five years ago that resulted in the sequencing of certain expressed genes of the moss by the Genome Sequencing Center (GSC) at Washington University. The GSC will be "closely integrated with the sequencing effort at the JGI for help in assembling, annotating and finishing the complete moss sequence" said Q...Review article makes case for a new source of cells in the body
... as if showing the way. "Nerves could be following certain cues left behind by VENT cells," Dr. Sohal says. "That is what we think. We have to experimentally test that." They also think that VENT cells may work like the Federal Reserve System works for banks: as a centralized source that supplies stem cells ...Researchers uncover secrets of immune system's munitions factory
...mation about lymphoma, a form of leukemia in which certain cells of the immune system proliferate uncontrolla...t. "Until now, it was only known to be involved in certain DNA replication and repair pathways." Chaudhuri also found that after AID "damages" the DNA, it leav...Listen up! Mice may hold key to restoring human hearing loss
...s in each ear, which can be easily damaged by age, certain illnesses, exposure to loud sounds, and some medications. Once damaged, the cells do not easily grow back. And with the cell loss comes so-called irreversible hearing loss. The two scientists are collaborating to develop new methods to expand an...Bright idea could doom cancer and viruses, say Purdue scientists
... we had a drug we could activate when it reached a certain place in the body - and nowhere else - it would reduce the stress on the rest of a cancer patient's system." Morrison's group experimented with several different chemical complexes that use rhodium, a rare metal, instead of platinum. Eventually they...Tiny molecules have big potential as cancer drugs, Stanford researcher believes
...a. Previous studies have shown that an increase of certain proteins, called cathepsin cysteine proteases, is associated with tumor development. "People have shown that more of the cathepsins are present in cancers and that they appear to be secreted by cancer cells," said Bogyo. "The question is what are the...Trojan Horses, xenon imaging and remote controlled genes
...ff Genes In order to understand the role of certain genes in embryonic development, the Dmochowski lab is studying how to use light to turn genes off. They have created caged antisense molecules stretches of DNA that can clamp on top of working genes that are released when their chemical cage is hi...UV light, coatings reduce bacterial adhesion up to 50 percent
The combination of ultraviolet (UV) light and certain coatings can lower -- by 15 to 50 percent -- the a...lts indicate that ultraviolet light, combined with certain coatings, also may offer a 'green' approach to keeping glass surfaces free of contamination." ...