Gene regulation, not just genes, is what sets humans apart
...sis of the human diet. Much is being written and hypothesized about how dietary changes have contributed to the current human pandemics of obesity and diabetes, and perhaps there will be some insights from understanding how these regulatory sequences have evolved, he said. To do a genome-wide analysis of reg...Female gender provides an advantage in renal diseases
...fene has estrogen-like properties, the researchers hypothesized that raloxifene may affect the progression of renal disease in these women. Broad-based preliminary data from this study will be presented at the APS meeting, but more specific data will be held until the study results are published. Presentation...What we can learn from the biggest extinction in the history of Earth
...sed as much carbon into the atmosphere as would be hypothesized for the end-Permian extinction. Whether or not we get there depends largely on future policy decisions and what happens over the next couple of centuries." Coral reefs Payne plans to learn more about the causes and consequences of this massive ...Study: Sticking to the sand might not be such good, clean fun for beachgoers
...and from strategic locations that would follow the hypothesized flow of bacteria. They found that when the dry sand became submerged by seawater during the flooding tide, enterococci were removed from the sand and transported into the water. "The fact that the bacteria actually can be transported from the sand ...Biologists at Tufts University discover 1 reason why chromosomes break, often leading to cancer
...ith areas where human chromosomes break. They have hypothesized but never proven that slow or altered replicatio...chromosomes were breaking. From past studies, they hypothesized that breakage was connected to "replication." As cells divide, the DNA inside those cells must dupli...Handicapping tuberculosis may be the way to a better vaccine
...hage doesnt know its infected. Jacobs and his team hypothesized that eliminating this enzymes activity would give macrophages the opportunity to trigger apoptosis, thus prompting a more effective immune response. So the researchers deleted the gene responsible for shuttling sodA out of the bacterium, effectively...Research teams uncover risk genes for multiple sclerosis
...ifferences. By contrast, the Nature Genetics paper hypothesized that IL-7R was significant and focused on that portion of the genome to assess whether it was, in fact, a key factor in the MS patients. MS is a disease of the central nervous system whose symptoms range from mild muscle weakness to partial or comp...Scientists discover new way to study nanostructures
...ant professor in the School of Physics. The team hypothesized that the new measured peaks likely originate from mechanical motions of the dimer, which causes enhancement of the electrical current at particular values of the applied voltage. At each of the peak voltages, the frequency of the AC Josephson current...JCI table of contents: July 19, 2007
...growing tumors. In the past, some researchers have hypothesized that the growth factor PDGF-BB (platelet-derived growth factor BB) contributes to tumor growth and spread by enhancing the envelopment of newly formed vessels with stabilizing pericytes, and rendering new vessels more resistant to anti-angiogenic the...Study identifies energy efficiency as reason for evolution of upright walking
...ing characteristic of human ancestors. It has been hypothesized that the reduced energy cost of walking upright would have provided evolutionary advantages by decreasing the cost of foraging. For decades now researchers have debated the role of energetics and the evolution of bipedalism, said Raichlen. The big...Brightly colored birds most affected by Chernobyl radiation
...f antioxidants in larger eggs). Mller and Mousseau hypothesized that because they had fewer antioxidants left to mop up dangerous free radicals, these birds would most adversely affected by exposure to radiation around Chernobyl. According to Mller and Mousseau: We found that bird species differed in their resp...Fat horses face health problems
...rt by the Virginia Horse Industry Board, the study hypothesized that overweight horses may suffer from insulin and... in clinical practice at VMRCVM, the research team hypothesized the prevalence of overweight and obese horses was much higher than the reported 5 percent. We though...Bright future for nano-sized light source
...y invisible subcellular structures into view. We hypothesized that a single potassium niobate nanowire would, when optically trapped, be able to double the frequency of the trapping light and then waveguide this locally generated light to its ends, thereby enabling the development of a novel form of scanning li...Scientists discover role of enzyme in DNA repair
...at is trying to repair the damaged DNA. Casellas hypothesized that once DNA lesions were generated, a regulatory...sically interfered with transcription, the authors hypothesized that repair enzymes recruited by the damage could shut down the transcription machinery polymerase. ...Simulations unravel outer membrane transport mechanism
... to one end of the luminal domain. Researchers had hypothesized that TonB somehow draws the luminal domain out of the barrel or changes its conformation to make way for the large molecules. Previous studies had been inconclusive, however. Molecular biologists have difficulty studying systems that involve comple...JCI table of contents -- June 1, 2007
...tarts fetal immune system Some researchers have hypothesized that the fetus can be exposed to and mount an immune response against allergens to which the mother has been exposed, and this may have an effect on the development of allergic sensitivity (e.g. eczema and asthma) later in an infants life. However th...Pregnant mom's exposure to flu vaccine kick-starts fetal immune system
Some researchers have hypothesized that the fetus can be exposed to and mount an immune response against allergens to which the mother has been exposed, and this may have an effect on the development of allergic sensitivity (e.g. eczema and asthma) later in an infants life. However th...Tiny genes may increase cancer susceptibility, Jefferson scientists find
...regulate the genes' expression levels. "We have hypothesized that changes in the promoter regions could affect the levels of miRNAs, which could influence a person's lifetime risk of cancer," Dr. Siracusa notes. Dr. Siracusa and her collaborators plan to examine miRNA expression levels among inbred mice str...Fused nasal bones helped tyrannosaurids dismember prey
...e, but no one but us and Emily Rayfield of Bristol hypothesized that the fusion enhanced the skull strength. Now we know it did." ......lace of the European potato. While some scientists hypothesized that landrace introductions originated in the Andes, others believed that the introductions came from Chile. While there are multiple lines of evidence to support each theory, the Andean introduction hypothesis stems from the belief that the Canary I...