Evolutionary forces explain why women live longer than men
...gram, argue that the difference in life expectancy stems from the biological imperative of attracting mates. "This whole pattern is a result of sexual selection and the roles that males and females play in reproduction," Kruger said, "Females generally invest more in offspring than males and are more limi...Inflammation markers identify fatigue in breast cancer survivors
...inical Cancer Research. The key to their fatigue stems from responses within their immune systems. "These studies identify a biological basis for persistent fatigue in cancer survivors that is implemented by inflammation," said Michael Irwin, M.D., director and senior research scientist, Cousins Center ...BC undergraduate 'wunderkind' racks up five national awards for science research
... models across scientific disciplines. The program stems from O'Day's desire to share her own experience as a woman in science, which the BC senior says has been a source of both inspiration and opportunity. "Last year when I was invited to speak about science at a local high school, I was disappointed to...NIH awards $13.3 million to Carnegie Mellon, University of Pittsburgh
...ics, dye chemistry and imaging. Their current work stems from a 35-year history of developing thousands of powerful fluorescent probes that have been widely commercialized and that have made a profound impact on biomedical research....Stowers scientists clarify role of tumor suppressor gene
...active cycling and a loss of the quiescent pool of stems cells that is necessary for long-term stem cell maintenance. PTEN can be phosphorylated in response to other signals that modulate its function. The Li Lab's work demonstrated distinct populations of hematopoetic stem cells (HSCs) with phosphorylated...Hawaii's anthurium growers cope with plant disease
...ped from a record high of approximately 30 million stems to 15.6 million stems in 1990. Following implementation of an integrated disease management program, losses were eventuall...Ancient DNA helps UF researchers unearth potential hemophilia therapy
...which these patients have problems from hemophilia stems from how much of this protein, factor VIII, is missing," said Bradley Fletcher, M.D., Ph.D., a UF assistant professor of pharmacology and one of the lead authors of the study. "If they have very low levels of it, they have lifelong problems of bleedi...UC Riverside researchers release new variety of asparagus
... the "fern" which is the feathery green leaves and stems of the plant. Spears are not usually harvested until plants are two years old in order to allow the crown to become large and healthy. During spring and the early summer of the third year, the crown produces spears, which are harvested for about 6-9...Contagious obesity? Identifying the human adenoviruses that may make us fat
...people feel more comfortable to think that obesity stems from lack of control," Whigham said. "It's a big mental leap to think you can catch obesity." However, other diseases once thought to be the product of environmental factors are now known to stem from infectious agents. For example, ulcers were once ...Tumor cells that border normal tissue are told to leave
...Cagan says. "But as oncologists have found, cancer stems from an accumulation of genetic mutations. If one of these wandering cells acquires a second mutation that prevents cell death, it could go on to establish a metastatic tumor." Having created a model for studying metastasis of tumor cells, the resea...Surprising killer of southeastern salt marshes: Common sea snails
... has shown that they kill the grass by slicing the stems during grazing, leaving plants vulnerable to harmful fungi. In a process called "fungal farming," snails then consume this fungi living off injured grass. "We've found a synergism between climate change and grazers," Silliman explained. "Severe droug...Gene mutation found that increases severity of multisystem syndrome
...other. The identification of MGC1203's role in BBS stems from the researchers' earlier discovery that disease-causing mutations in the BBS genes disrupt the function of cilia, tiny structures that can act like antennae on cells (in the eye and brain, for instance), help cells move (e.g., in sperm), or help...Mouse study: New muscle-building agent beats all previous ones
...ments also show that the new agent's extra potency stems from its ability to block more than just myostatin, says Lee. "We don't know how many other muscle-limiting proteins there may be or which ones they are," says Lee, "but these experiments clearly show that myostatin is not the whole story." The evid...From one cell, many possible cures
..."stem cells are so named because they are like the stems on a tree that can produce new leaves and flowers each year." Each stem cell has the ability to divide so as to produce a perfect copy of itself; the copy then can become a "workhorse" cell, such as a bone or nerve cell. Because the stem cell produce...Grants to fund research on preparing for bioterrorist attack
... Beyond biodefense, Zand's interest in the effort stems from its potential to also offer insights on how to overcome immune system rejection of transplanted organs. Mathematical models capture the behavior of systems in sets of variables, and in equations that establish relationships between them. Variab...Lippman recognized for discoveries in cancer prevention
...rugs, such as cyclooxygenase-2 (COX-2) inhibitors, stems in part from Dr. Lippman's observations that NSAIDs induce apoptosis and inhibit tumorigenesis via 15-LOX-1 in colorectal cancer cells. Dr. Lippman is also recognized for his long record of discoveries in oral carcinogenesis. Currently, he heads......NA. Crown gall tumors mostly strike the trunks or stems of dicot plants, tree or vines near the ground where freezing occurs during winter and a wound forms in spring. Such fruit trees as cherries and peaches, raspberries and high-quality vine grapes like chardonnay and cabernet sauvignon tend to be susce...Marine snail's neural network sheds light on the basis for flexible behavior
... to generate a large number of behavioral variants stems from the elegant hierarchical architecture of the brain's motor network. Most motor systems are organized into a hierarchy of at least two layers of neurons, with higher-order neurons acting on lower-order neurons, which form a small number of buildi...Hybrid grass may prove to be valuable fuel source
...solid fuel such as coal." Dry, leafless Miscanthus stems can be used as a solid fuel. The cool-weather-frie...ves in the winter, leaving behind tall bamboo-like stems that can be harvested in early spring and burned for fuel. Rhizomatous grasses such as Miscanthus ar......when you dig down into the peat, you don't see any stems or shrubs. Had they grown there in the past, they would have been preserved because peat preserves things very well." Wetlands are hotspots for biodiversity. The shift to woodland and forest means loss of many types of wetland vegetation and fewer ha...