Photosystem I -- An Intermediate Step -- May Not Be Necessary For Plants
...ear-normal conditions. "No pun intended, but this sheds new light on photosynthesis," Greenbaum said. "This is speculation, but this could be a crude prototype of primordial photosynthesis." Wanting to know whether these organisms really lacked the PSI complex, or whether it was working undetected, the r...Ocean Sediments Contain Record of Past Vegetation Fires in Africa
...distributed. According to Verardo, "This new data sheds much-needed light on where the 'missing' carbon may lie: in ocean-bottom sediments laden with charcoal from fires on land."...Low Oxygen, Key To Fetal Development, Also Offers Cancer Clues
...dge between mother and baby. The finding also sheds light on cancer, says co-author JohnLudlow, associate professor at the University of Rochester CancerCenter, since hypoxia, or low oxygen level, also plays a role incancerous growth -- a process remarkably similar to placentaldevelopment. The st...Dust Mite Behavior May Show New Ways To Control Pests
...s there,”said Glass. “The average person sheds enough skin cells every day tofeed thousands of mites for a month.” Needham said that most homes have dust mites, but the mites usually don’tpose a threat, except for people with asthma or allergies who react negativelyto the mite dropping...Drunken Fruit Flies Reveal Molecular Pathway Regulating Sensitivity To Alcohol
...d addiction inthe near future." The finding, which sheds light on how fruit flies become drunk, aims to addressin the future what makes some people more apt to become alcoholics.Previous studies have determined that people who are less sensitive to alcohol'simpact are at greater risk for becoming alcoholic......er it has infected a cell. Onceinside, the invader sheds its protective protein coat, releases its geneticmaterial and hijacks the cell's resources to replicate itself. But according tothe textbooks, viruses shut down between infections, becoming as inanimate as astone. But now Thomas Smith, a bioc...Brookhaven, Carnegie Scientists Report First 'Morphing' Of Plant Enzyme Function
... industrial raw materials, fuel and food. It also sheds new light onhow plant enzymes evolved to perform different functions. The team of scientists from the U.S. Department of Energy's BrookhavenNational Laboratory and the Carnegie Institution of Washington's Stanford,California, campus reports ...Study Provides Guidance For Treating Patients With Brain Aneurysms
...nnesota, and lead author of the study. "Thisstudy sheds significant light on the natural history of unruptured intracranialaneurysms, and offers physicians and their patients a new, low-risk option. Physicians and their patients will need to consider each situationindividually." The study enrolled 2,621 p...Researchers Discover Mechanism That Drives Daily Body Rhythms
... The discovery is also significant because it sheds further light on abiologically unique phenomenon, Reppert says. "We're talking about a time domainthat is unusual in biology. We're talking about a cell being able to keep24-hour time rather than millisecond or second-by-second time. That's what Ithi...Viral Harpoon Structure Suggests Measles, HIV And Ebola Viruses Related
...e three-dimensional structure of the fusionprotein sheds new light on the key event in paramyxovirus infection — whenthe virus unfolds itself to reveal a spikelike protein that is launched into thegel-like outer membrane of the target cell. "It's much like a harpoon goinginto a target," said Lamb. H...Molecular Effect Of Vitamin E On Plaque Formation Identified
...xidant effect," Jialal said. "This pioneering work sheds more light onthe possible prevention of heart disease with this antioxidant supplement, bydecreasing not only oxidation of bad cholesterol but also by having importanteffects on cell function in the plaque." In a 1996 study, these researchers showed ...Jumpin' Jordan! Athletic Gene Yields Biological Clues
...f Volvox than we've ever had before." The finding sheds light on a simple organism that has been studied for 300years, and has implications for how organisms across species reproduce anddevelop specialized cells. Also, Kirk and Miller's work advances theunderstanding of how transposons in general may some...Immune Response To Hepatitis B Spares Liver Cells
...d to better treatments for HBV infection. It also sheds light on how thebody protects against spread of an ongoing infection without destroying vitalorgans." Scientists have thought that cell-killing T cells bring hepatitis B virusinfections to an end by destroying infected liver cells. The current study...Under the hood of a cellular transport machine
Collaboration sheds light on assembly of transporter associated withcholesterol, breast cancer, and HIV Boston, MA--June 12, 1999--A collaboration between researchers in Great Britain,Italy, and Harvard has developed a newly detailed view of one of the cell'smajor tra...Researchers call for doubling of RDA on vitamin C
...aid, has fallen by the wayside as study afterstudy sheds new light on the role that antioxidants can play in degenerativedisease, aging, cognitive and immune function and overall health. And forvarious biochemical reasons, vitamin C is still the king of antioxidants. Antioxidants readily scavenge ma......e New England Journal of Medicine. The discovery sheds light on how viruses may work together to cause disease andmay lead scientists toward further understanding of how and why some individualshave more rapid progression of HIV, the virus that causes AIDS. "CMV may also impact adults with HIV, especiall......re likely to develop colorectal cancer. Our study sheds light on themetabolic process underlying this connection," said Robert Schoen, M.D.,assistant professor of medicine at the University of Pittsburgh School ofMedicine, where he is the medical director of the Center for Families atRisk for Colorectal C...Plakin proteins brace nerve axons and allow for the transport of neurotransmitter vesicles
...trength and flexibility. This important finding sheds new light on how nerve axons, which in humans can reach as much as a meter in length for a single neuron, maintaintheir rigidity and allow for the transport of neurotransmitter-filled vesiclesfrom one end to the other. "We have known for several year......heProceedings of the National Academy of Sciences, sheds light on a fundamentalcell survival process. The process is highly significant in aging, cancer andspecies evolution. It may even offer a clue to the solution of anotherlong-standing mystery -- why the immune system's globulin genes are so prone to...Immune molecule found to kill indirectly by closing receptor to live-saving help
...he Proceedings of the NationalAcademy of Sciences, sheds new insight on the cross-talk of two proteins--insulin-like growth factor, a life-promoting molecule, and an inflammatory cytokine known as tumor necrosisfactor alpha(TNF)-- within damaged cells. The findings could become important in thetreatment o...