Signal for inflammation linked to Ras-induced tumor growth
...blood vessels are formed so that an adequate blood supply is in place to feed the growing tissue. A new research study published in the November issue of Cancer Cell demonstrates that a cytokine, a chemical signal that stimulates inflammation, plays a critical role in the initiation of new vasculature forma...UCSD discovery opens new avenues for design of anti-tumor medications
...d others has shown that tumors, which need a blood supply to provide oxygen and nutrients, release chemical signals that summon the blood vessels to grow toward them. However, these latest findings show that the blood vessels themselves are actively responding to oxygen levels, not just to the signals se...Heart responds to fasting by remodeling vital energy-producing components
... extra internal walls or membranes in an effort to supply energy to the rest of the cell. Partially consumed are the specialized internal membranes mitochondria use to generate energy-rich compounds for the cell, making the mitochondrial strategy appear to create more problems than it might solve. Neverthe......her haptoglobin variants. Therefore, an increased supply of antioxidants, such as those found in vitamin E, would be expected to provide the greatest benefit for these patients. The Technion-Israel Institute of Technology and the Kennedy-Leigh Charitable Trust is funding the new study. Dr. Levy is ...Shark cartilage cancer 'cure' shows danger of pseudoscience
...formation and the growth of new blood vessels that supply nutrients and oxygen to malignancies. "The fact is that it is possible that highly purified components of cartilage, including from sharks, may hold some benefit for treatment of human cancers," Ostrander said. "The key will be to isolate thes...A complex agricultural society in Uruguay's La Plata basin, 4,800-4,200 years ago
...oviding an abundant, reliable, and a resource-rich supply of foods and water. Furthermore, wetland margins offered an ideal place for the experimentation, adoption, and intensification of agriculture encouraging the Los Ajos' community to engage into horticulture", explains Iriarte, currently a post-doctora...Purdue research offers hope for canine, human spinal injuries
...rom paralyzing victims permanently. I would like a supply of PEG to become standard on every ambulance." ...Hudson's Bay Company fur trapping policies set stage for modern environmental struggles
...roduction of European farming methods and crops to supply its far-flung fur-trading empire. And later, when the supply of beaver pelts began to decline, the company began switching its focus from furs to firs. Export of...$43 million from Gates Foundation to produce inexpensive antimalarial drug for Third World
...xpertise, we'll provide a new, scalable and stable supply of affordable antimalarials for the developing world," said Victoria Hale, Ph.D., founder and CEO of OneWorld Health. To ensure affordability, UC Berkeley has issued a royalty-free license to both OneWorld Health and Amyris, of Albany, Calif., to dev...UCSB makes important advances in studies of retinal detachment
...ial cells surround neurons, hold them in place and supply nutrients to neurons. They insulate neurons from each other and also destroy and remove dead neurons. The reaction of the glial cells to retinal detachment is critical to the success of surgery to correct retinal detachment. The glial response is...National study finds second cesarean section safer than normal delivery
...hat one complication of birth insufficient oxygen supply to the brain that can lead to acute brain injury "was significantly greater among the infants of women who underwent a trial of labor" than among the infants of women who elected a second cesarean. "The rate was eight per 10,000 in the attempted vag...Model simulates dynamics of heart rhythm disorders
...al. Less blood flows out of the ventricles and the supply of oxygen to the body is reduced. In ventricular fibrillation, the ventricles no longer contract coherently. Due to the reduced pumping action, almost no blood leaves the ventricles. As a result, the body hardly receives any more oxygen and death ens...Iceberg poses no threat to Antarctic personnel
...mmediately to cut a channel in the sea ice for the supply ships. Officials agreed that the position of B-15A presents no obstacle to navigating the ship to the ice edge and beginning its work of opening a channel through this year's roughly 80 nautical miles of sea ice. In a normal year, the icebreaker clea...Tips from the Journals of the American Society for Microbiology
...Escherichia coli O157:H7 among animals, their food supply and potentially humans say researchers from Kansas. Their findings appear in the December 2004 issue of the journal Applied and Environmental Microbiology. E. coli, one of the leading causes of food-borne diseases throughout the world, is responsibl...Hospital epidemiologists trace outbreak of organism to commonly used wound care equipment
...well as on cleaned stretchers, the sink and nearby supply shelves. Further surveillance and testing of 58 patients who had undergone wound therapy in the same procedure room as the initial patients showed that six more patients were infected, and five of these had received pulsatile lavage treatment. By...Scientist discover the cellular roots of graying hair
...lls that form a reservoir that spawns a continuous supply of new pigment-manufacturing cells, called melanoc...e, seems to play a crucial role in maintaining the supply of stem cells within the hair follicle, and graying is the result of "incomplete maintenance of mela...Mouse brain tumors mimic those in human genetic disorder
...1 brain tumors may involve agents that prevent the supply of growth promoting factors provided by new blood vessels and microglia." Next, the researchers used the mouse model to investigate a clinical concern. Physicians rely on several tests to determine whether a child with an optic pathway glioma should ...Component of plastic stimulates growth of certain prostate cancer cells
...ntainer linings, food storage containers and water supply pipes. About 2.5 billion pounds of the chemical are produced each year. In particular, the study showed that the affected class of prostate cancer cell, characterized by mutated receptors for androgens, the male hormone, can proliferate in response t...Urban ecology study witnessing the birth of a 'designer ecosystem'
...ounding desert in that it has an ample, year-round supply of basic life resources such as water, that in the...alized. This leads to a larger and more consistent supply of growing plants, which are the base of the food chain, and ultimately to a greater number of anima......eart muscle destroyed when the vital organ's blood supply is cut off. In the United States, nearly one of every 2 men and one of 3 women older than age 40 will suffer a heart attack, leaving them more vulnerable to chronic heart failure or another, potentially fatal, heart attack. Medications and bypass su...