Consumption of small amounts of dark chocolate associated with reduction in blood pressure
...and diastolic BP by −1.9 (1.0) mm Hg without changes in body weight, plasma levels of lipids or glucose... Whereas long-term adherence to complex behavioral changes is often low and requires continuous counseling, adoption of small amounts of flavanol-rich cocoa in...News tips from the Journal of Neuroscience
... fibers in the medial prefrontal cortex as well as changes in several markers in striatum, hippocampus, and hypothalamus. There were no apparent changes in brain structure with MPH treatment. Although the neurochemical changes were mostly short-lived, e...Cloning the male genome may help infertile men
... conception of many couples, and hence improve the changes of an on-going pregnancy. Professor Takeuchi and his team injected a single healthy mouse sperm into a mouse egg from which the nucleus had been removed, and by doing so cloned the male genome. The process worked well in almost all cases and the ...Manganese levels increase in scrapie-infected sheep before clinical symptoms develop
...in function, including memory changes, personality changes and problems with movement that worsen over time. ...hat scrapie challenge results in similar metabolic changes as occur in non-resistant sheep. Another interesting finding was that although levels of manganese...Researchers discover method for identifying how cancer evades the immune system
...eck School of Medicine. First, we find the genetic changes that allow a tumor to defeat the immune system, then we can apply therapies that compensate for these genetic alterations. According to Epstein, tumors are notorious for demonstrating a broad array of genetic and biological variations. Their differ...Antibody linked to MS significantly higher in spinal fluid of blacks
...etic differences among ethnic groups contribute to changes in the immune system, affecting susceptibility to MS. And they add another piece to a tantalizing but stubborn puzzle: Why do blacks get MS less often than other ethnic groups but suffer more serious symptoms when they develop the disease" "These an...JCI Table of Contents -- July 2, 2007
...ical Investigation. Given the considerable shape changes that skeletal and heart muscle undergo as part of their natural function, its remarkable that muscle cells just dont tear apart. In fact, cell membrane rupture occurs frequently under normal conditions but to prevent cell death cells have developed m...The Cancer Genome Atlas awards funds for technology development
...arge-scale, systematic approach to identifying the changes that occur in the genomes of cancer cells. The goa...igh-throughput investigations of cancer-associated changes in genomic regions that are important in gene regulation, using small fragments of cancer tissue. ...1,000-year-old Arctic ponds disappearing due to global warming
...recorded evidence of recent lower water levels and changes in water chemistry consistent with an increase in ...d Douglas. The ecological ramifications of these changes are likely severe and will be felt throughout the Arctic ecosystem, says Douglas. It would affect wa...Global warming is evaporating Arctic ponds, new study shows
...to recognize a trend of declining water levels and changes in water chemistry. When they arrived to begin ano...the circumpolar Arctic. However, the ecological changes recorded in the 1994 study pale in comparison to those noted in the current paper, where some sites ...Satellite images reveal link between urban growth and changing rainfall patterns
... and throughout the developing world.'' Coastal changes in Vietnam In the Global Environmental Change study, the researchers focused on Vietnam, a signatory of the Convention on Wetlands of International Importance Especially as Waterfowl Habitat, drafted in Ramsar, Iran, in 1971. The goal of the treat...Stressed-out African naked mole-rats may provide clues about human infertility
...behaviour, said Dr Faulkes. Natural cues such as changes in day length and social stress act through areas of the brain that control reproduction and, as it is likely that such neuroendocrine pathways are similar across species, understanding how they work in naked mole-rats could lead to a better understa...Regulating alternative splicing during neural development
... switch in expression between PTB and nPTB induces changes in a large number of alternative splicing patterns during neuronal development. "This reprogramming of splicing by the switch in PTB proteins adds a new layer of genetic change determining the function of a post-mitotic neuron."...Modern brains have an ancient core
...ensory cues from the ancient marine environment to changes in the animals body. Over time these autonomous cells might have clustered together and specialised forming complex brain centres like the vertebrate hypothalamus. These findings revolutionise the way we see the brain, says Tessmar-Raible. So far we ...New dynamic brace developed to advance clubfoot treatment
...dently while wearing the brace. Dobbs said these changes are key to preventing a recurrence of clubfoot. "While we've had good success in obtaining correction in clubfeet, maintaining that correction has been more challenging," Dobbs said. "If the child is tolerating the brace well, there is a higher lik...UCF professor finds bacterial pathogen may be key to understanding cancer development
... contacts an epithelial cell, the bacterium causes changes in the cells cytoskeleton that allow the cell to swallow up the bacterium. We discovered that a human protein called CrkII plays a critical role in stimulating internalization of Listeria by somehow controlling the cytoskeleton. Listeria is a pote......e cannot hope to bring about the drastic and rapid changes the solution requires. Instead, Wells speculates that a "strong government for a crowded planet" might be the only approach that will work. Such an approach could implement solutions quickly and without having to seek a consensus decision. However,...Support for chromosomal theory of cancer found in cancers' development of drug resistance
...tations," he said. Also, the more often a cancer changes karyotypes as it grows, he said, the more drugs it becomes resistant to. "The inherent instability of aneuploidy thus explains the enormous adaptability of cancers against cytotoxic drugs and dims hopes for gene-specific therapies," Duesberg, Li an...World Wildlife Fund warns against iron dumping experiment near the Galapagos Islands
...he impact on individual species and extends to the changes that this dumping may cause in the interaction of ...on, the base of the marine food chain, would cause changes in all the species that depend on it. The impact of gases released by both the large amou...Researchers find gene that spurs development of the epididymis
...ize the egg, he said. Going through the epididymis changes the biochemical properties of the sperm and helps it develop the energy-generating machinery that allows it to swim. So without this structure, under normal circumstances a male cannot be fertile. The researchers first thought that the abnormality ...