Wolf reintroduction reshapes Yellowstone ecology
... of Yellowstone National Park has led to increased growth of willow and cottonwood in the park by causing fear responses in elk and other ungulates, according to William J. Ripple and Robert L. Beschta of Oregon State University in Corvallis. Ripple and Beschta, writing in the August 2004 issue of BioScienc...New technique helps scientists reveal interactions between genes and drugs
...it its target of interest, or how much can it slow growth or other cellular processes? Then we'll be able to look at genetic effects on medications for a range of disorders." ...Malignant cancer cells generate mice through cloning
...nes in an otherwise healthy cell mutate, and tumor growth depends on continuing, multiple mutations. But only recently have scientists begun to understand the "epigenetic" components of cancer-that is, how other molecules in a cell affect genes without actually altering the sequence of DNA. Many of these ep...Ecologist calls for creation of an international panel to assess human behavior
...ablishment of marine reserves, limiting population growth and wasteful consumption - and actions the rest of society, and especially politicians, are willing to take,'' he said. ''To oversimplify, the scientific community has known for decades that humanity was on the wrong course, but its counsel has fall...A changing landscape may have dire implications for birds
...tails broad patterns of birds' response to housing growth and land cover change in the lower 48 United State...y to begin to examine how the pressures of housing growth and land cover change have altered bird populations during the past 30 years across the 48 contiguou...Two-pronged attack targeting EGF receptor hinders cancer cell growth
Hitting the epidermal growth factor receptor (EGFR) both high and low with a co...rugs for targeted cancer therapy curbs cancer cell growth more effectively than using the drugs each by themselves, researchers from the University of Wiscons...Blood pressure hormone may inhibit growth of lung cancer
...the control of blood pressure may also inhibit the growth of lung cancer cells, say scientists at Wake Fores...und that angiotensin-(1-7) significantly slows the growth of three different types of human lung cancer cells in the laboratory. "Our experiments provide the ...APS/IUPS launch PHYSIOLOGY bimonthly
...riving,' publication is really a reflection of the growth of physiology over the past 10 years," Dr. Boron said. He noted that the Human Genome Project--and genome projects for other organisms--have been a major boost to the discipline and its "role in integrating function from the molecule to the whole org...Urban heat islands make cities greener
...lectance data to measure seasonal changes in plant growth for the entire year of 2001. By accounting for angles of views from the satellite, varying sunlight, land surface temperatures, cloud cover, and the presence of snow, the scientists were able to detect daily variations in the green color of plants. ...Brookhaven lab biophysicist F. William Studier wins R&D 100 award
...Instead of spending much of the day monitoring the growth of many different cultures to get optimum conditions for producing proteins, we simply inoculate cultures late in the day, let autoinduction do the work for us, and collect our proteins the next morning. An added bonus is that we usually get much mo...Plant gene discovery could enhance plant growth, reduce fertilizer needs and phosphate pollution
...ronment could be substantial: more efficient plant growth with less phosphorus-based fertilizer, and a subsequent reduction of phosphate runoff in surface water. "AM fungi are very efficient at helping plants absorb phosphorus from the soil, and managing this symbiotic association is an essential part of ...UCI study reveals gene linked to breast cancer can suppress tumors
...identified how the healthy BRCA1 gene prevents the growth and survival of breast cancer cells. The gene accomplishes this by keeping estrogen and growth factor molecules from sending chemical messages through specific signaling pathways on the surface o...UNC researchers awarded $8.65 million from National Institute on Aging
...ert internationally in the biology of insulin-like growth factor, IGF-1. In human and animal studies, IGF-1 is known to play a role both in atherosclerosis and aging. Also key to the research funded by the grant are two School of Medicine laboratories. Dr. Susan Smyth, assistant professor of cardio...Newly designed nanoparticle quantum dots simultaneously target and image prostate tumors in mice
...te cancer cells under the skin of mice to promote growth of solid prostate tumors. They then encapsulated quantum dots, made from cadmium selenide, within a highly protective coating called an ABC triblock copolymer, and over-coated the particle-polymer composite with poly (ethylene glycol). They injecte...Hunt for a new plant hormone points to carotenoids
...e hormone, which is thought to coordinate rates of growth between different plant tissues. In plants, as in animals, communication between different parts of the body is vital if the left hand is to know what the right hand is doing. In animals, this is achieved by a combination of the nervous system and ho...Gene therapy reaches muscles throughout the body and reverses muscular dystrophy in animal model
...sponse. The delivery system also includes use of a growth factor, VEGF, that appears to increase penetration into muscles of the gene therapy agent. Chamberlain said the formula was the result of about a year of trying different methods. Duchenne muscular dystrophy is an X-linked genetic dis...Bone, enamel, dentine, milk & saliva share gene family
...responsible for calcium binding; whether it is the growth of bone on cartilage, tooth components like enamel and dentine, or production of calcium rich milk and saliva. However, all calcium-binding genes do not exist in all vertebrates. "Birds have a gene to make hard egg shells, but they do not have gene...Scientists pinpoint molecules that generate synapses
...ether it also serves as a signal to foster synapse growth between neurons in other areas. Two other members of the FGF family, FGF7 and FGF10, are very similar in structure, and may play similar roles in other areas of the nervous system....Plant respiration not just an evolutionary leftover, study shows
..., photorespiration, is necessary for healthy plant growth and if impaired could inhibit plant growth, partic...plains why many plants are unable to sustain rapid growth when there is a significant increase in atmospheric carbon dioxide," said Bloom. "And, as we antici......unds are being studied to someday prevent barnacle growth on the underside of ships. Several other marine or...other legumes make an organochlorine chemical as a growth hormone. The yellow star thistle, a hardy invasive species in many western states, produces a chlori...