Advanced light source reveals secrets of ribosome structure
...sfer RNA. Until the advent of synchrotron radiation facilities like the ALS,obtaining detailed information about macromolecular structures such as ribosomeswas an almost insurmountable challenge. Yet this information is essential forunderstanding the mechanism by which these critical organelles functi...... diabetes.Other possible links include ultraviolet radiation and multiple sclerosis,ionizing radiation and systemic lupus erythematosus, stress and rheumatoidarthritis, and exposure to heavy metals and a......rgery to remove thecancerous lump and accompanying radiation seem the best way to get rid of thedisease and pre...ater than those women who receive a lumpectomy and radiation therapy butdon't carry one of these genes. As a result, says Bruce Turner, M.D., Ph.D., assi...Environmental jigsaw pieces fall into place
...d urbanenvironment, Anon-toxic environment, A safe radiation environment, A protective ozone layerand Limitedinfluence on climate change....Jefferson scientists propose mechanism to control the body's red blood cell and platelet production
... andsometimes during irreversible cell injury from radiation and other poisons.Scientists believe apoptosis gone awry underlies neurodegenerative diseases suchas Alzheimer's and Parkinson's diseases, autoimmune diseases such as lupus, andcancer. Apoptosis has received a great deal of attention in the ...Breast cancer relapse rates appear higher in women who have cancer-causing gene, Yale study finds
...hat if these women elect breast conservingtherapy, radiation and lumpectomy, there is possibly a greater risk o... to getting cancer at an early age. Lumpectomyand radiation therapy remains the preferable standard of care for the majorityof early stage breast cancer patient...UT Southwestern researchers discover structure of molecule that repairs sun and cigarette damage
...that way, the NER mechanism iscounterproductive to radiation and chemotherapy." Until the UT Southwestern scientists solved the crystal structure of thecentral component of the NER system - the Ultimate Damage Recognition componentUvrB - little was known about the structural basis of how the systemdiff...News from the zebrafish cousin of the human genome: A radiation hybrid map of the zebrafish genome
A map of the zebrafish genome based on the radiation hybrid technique has beenpublished by scientists from the Max Planck Institute for Developmental Biologyin Tuebingen/Germany (Nature Genetics, September 1999). This map allowsscientists to match the map positions of candidate genes with the positions...Genetic information of world's most radiation-resistant organism decoded
... the amount that would kill a human. This dose of radiation shreds the bacteria's genome into hundreds of pieces. The organism's remarkable ability to repair this DNA damage completely in a day and go on living offers researchers tantalizing clues to better understanding the mechanism of cellular repair. Ad......unt of haze that leads to a reduction in the solar radiation reaching the earth's surface." The same effect has been measured on the East Coast of the United States, though China's haze levels are roughly twice as bad. Records suggest that China's haze problem has worsened over the past 20 y...Abgenix initiates phase III clinical trial of graft versus host disease therapy
...e marrow cells and immune system are suppressed by radiation and or chemotherapy and therefore can not mount a sufficient immune response. Often a portion of the graft recognizes the host's own cells as foreign, becomes activated and attacks the cells, resulting in GVHD. The disease typically involves damage t......ed cancer cells, is currently being evaluated with radiation in a multicenter Phase III clinical trial for the treatment of head and neck cancer. Triapine, which is designed to prevent the replication of tumor cells by blocking a critical step in the synthesis of DNA, is currently being evaluated for its safe......om acid baths, high and low temperatures, and even radiation doses. Then, in a science fiction sequel, it dispe...s and Earth. "By nature, it is selected to survive radiation damage very well," D. radiodurans can withstand without loss of viability a dosage that is 3,000 tim...Cooperative action of two proteins causes damaged cells to "self-destruct"
... due to environmental factors, such as ultraviolet radiation and chemical toxins, aswell as natural cell processes. If left unchecked, the damaged cells will continue to proliferate,often leading to life-threatening diseases, such as cancer. This "emergency" suicide pathway is designed to reverse or mitigate ...20th century marks achievements in food science and technology
...osed use of killing bacteria in food with ionizing radiation (1905). Fruit first commercially frozen in the Un... Vitamin D first added to milk through ultraviolet radiation (1933). 1940s: Mass production of food using automation takes off. Concentrated, frozen, and dehydr...Pitt team first to illustrate mechanisms of chromosome missegregation in cancer cells
...etimes, harmful substances like cigarette smoke or radiation damage a chromatid, causing it to break. Without telomere caps, the new ends stick to each other and the resulting fused chromosome has two centromeres as well as a duplication of some of the genes from that chromosome. When cell division occurs, t...Fertilizers linked to amphibian deaths
...ioneering research on the potential impact of UV-B radiation in sunlight as one of the possible causes of amphibian problems. He now says that exposure to nitrogen fertilizers - along with habitat destruction, climate change, pollution, pathogens and introduced predators - is probably another part of the answe...Researchers discover new vein of cancer-fighting agents
...ed in combination with existing therapies, such as radiation and chemotherapy." Other authors on the paper ...s cancer treatments to be used in combination with radiation and chemotherapy. The research was funded in part by National Institutes of Health, Hershey Prost...Brookhaven scientists create new ways to tag and track molecules
...rve as "magic bullets" to deliver cell-killing radiation doses directly to cancer cells without causing harm to the surrounding healthy tissue. To date, the Brookhaven scientists have developed and/or are using tags made from a variety of metals, including gold, platinum, irridium and paladium. "Each ele...Radiating relief: Researcher combats stubborn arthritis with neutrons
...nch and her coworkers can better estimate how much radiation they are administering. The new technique should be more effective than surgery, which often fails to remove all the diseased tissue. It should be safer than an injection of a radioactive material, which kills the synovium, but leaves radioactivity i...