JCI table of contents: January 12, 2006
...d out of the cell. The absence of REP-1 results in nutrient deficiency and degeneration of light-sensitive photoreceptors embedded within the thin layer at the rear of the eye (the retinal pigment epithelium, RPE), and the choroid (a layer filled with blood vessels that nourish the retina). In a study appeari...Study: Competition for sex is a 'jungle out there'
...tance of biodiversity hotspots for medicine, food, nutrient cycling, and alternative resources for pollinators of domesticated crops world wide," said collaborator Tia-Lynn Ashman, Ph.D., of the University of Pittsburgh. "The concern is that we are losing habitat really rapidly globally, especially in tropica...Lots of flowers and trees, not enough birds and bees
...m services they provide, including medicine, food, nutrient cycling, and alternative resources for pollinators of domesticated crops," Ashman said. Further research will be done to determine what causes pollen limitation worldwide. When many species exist in the same place, plants become more separated from ...The evolution of food plants: Genetic control of grass flower architecture
...rent genes control the architecture as well as the nutrient content in cereal grasses. The ramosa2 (ra2) mutant of maize has increased branching of inflorescences relative to wild type plants, with short branches replaced by long, indeterminate ones, suggesting that the ra2 gene plays an important role in co...Gene thwarts some pathogens, gives access to others, could save crops
... root hair. This may have implications in terms of nutrient absorption or total plant biomass." The answers eventually could lead to increased crop yield and decreased produce loss due to Botrytis and other similar pathogens, he said. Currently, the gray mold disease caused by Botrytis destroys about 10 perce...2006 Ocean Sciences Meeting: Press Conference Schedule
... the Queensland coastline is causing unprecedented nutrient stress to coastal reefs and waters. Geochemical records reveal that recent lagoon nutrient enrichment is higher than at any time since 1945 and is causing degradation of coral reefs. Since th......ers Aleutian island plant communities by thwarting nutrient subsidies," is published in the February issue of ...ve been observed in regard to an island's size and nutrient deposition. In many cases, a small island with a large perimeter touching the sea receives more nutr...The future of nutritional genomics is collaboration
...ng specific populations of people who have special nutrient needs, revealing previously undiscovered nutrient-gene interactions, improving current methods for dietary assessment, and assisting in creating more nutritious foods and formulations. One of the first goals of the consortium is to promote ethical an...Study with smokers shows vitamins combine for benefits
...research in the past has been done by studying one nutrient or another in isolation, sometimes with conflictin...e in people with existing disease, or studying one nutrient at a time rather than combinations. In this research, participants were asked to eat a diet low in f...Phytoplankton bounce back from abrupt climate change
...changes in salinity and alkalinity, and changes in nutrient patterns and trace elements. "In every case, changes in surface habitats resulted in transient plankton communities," Bralower told attendees at the 2006 annual meeting of the American Association for the Advancement of Science. "Although we have a p...Too much sugar not good for coral reefs
...t hotels. But increased development can mean more nutrient rich runoff that threatens the very coral reefs attracting tourists in the first place. David Kline at the Smithsonian Tropical Research Institute and colleagues find that bacteria on coral reefs grow out of control as the level of simple sugars in...Grand challenges, national lab-style
... information on issues ranging from how energy and nutrient transport occurs between microbes and their environment, to how microorganisms influence soil and water chemistry, with potential applications that include groundwater remediation, carbon sequestration and energy generation....There's something fishy about human brain evolution
...fish. "The shores gave us food security and higher nutrient density. My hypothesis is that to permit the brain...fully so. Iodine deficiency is the world's leading nutrient deficiency. It affects more than a 1.5 billion people, mostly in inland areas, and causes sub-optima......as a result of human activities, namely increasing nutrient pollution through runoff and other problems that may fuel red tide growth. Through earlier research, Bossart and colleagues developed the first sensitive test for the presence of brevetoxins in manatee tissue. This was a key advancement, as positiv...Marine mammals are on the frontline of failing ocean health
...ms are likely caused by multiple stresses, such as nutrient overloading and global warming, acting together. These blooms are on the rise, and many are associated with toxins and bacteria that are harmful to humans. "We need to figure out what is causing this increase," says Bossart. "It's in our own best i...MBL scientists to present research at 2006 Ocean Sciences Meeting
...rs are high in organic matter and low in inorganic nutrient content relative to average river waters globally....esigned to improve estimates of organic matter and nutrient fluxes from small coastal watersheds to the Arctic Ocean. Although the North Slope represents only a...Science class experiment reveals vitamin B12 secret
... that do not eat other animal products acquire the nutrient from bacteria in their guts or from bacteria-infected dirt on their plant food. An estimated one-quarter of people older than 60 in this country have trouble absorbing B12. B12 deficiency can lead to nerve damage, anemia, and forgetfulness. Walker's...International policy workshop on nitrogen in Paris March 8 10, 2006
...many in the scientific community to the effects of nutrient overload on the environment. The issues of Nitrog...tle agriculture, have seen little if any change in nutrient fluxes in the landscape. Some parts of the world, including much of Africa, suffer from too little ......ince the 1980s, researchers have hypothesized that nutrient levels rather than temperature are the main factor...y supporting blooms of harmful seaweed, increasing nutrient pollution levels are reducing the areas where reef-building coral can survive, a result the team bel......h the critical role of this biochemical pathway in nutrient sensing in other animal models and, critically, in humans. TITLE: Restoration of hypothalamic lipid sensing normalizes energy and glucose homeostasis in overfed rats AUTHOR CONTACT: Luciano Rossetti Albert Einstein College of Medicine, New York, Ne...