Specific inhibitors of prostate and skin cancer cell growth.Further Information: PDF rubitec – Gesellschaft für Innovation und Technologie der Ruhr-Universität…
Ecologists have at last got a view of sperm whales’ behaviour during their long, deep dives, thanks to the use of recently developed electronic “dtags”. According to new research published in the British Ecological Society’s Journal of Animal Ecology, sperm whales – like bats – use echolocation consistently to track down their prey at depth.
Working in the Atlantic, the Gulf of Mexico and the Ligurian Sea, scientists from Woods Hole Oceanographic Institution and the Universit
From May 22-30, Harbor Branch scientists, along with colleagues from the University of Miami, will use the Harbor Branch Johnson-Sea-Link II submersible to explore for the first time newly discovered deep-sea reefs between Florida and the Bahamas. The reefs were discovered in 2,000 to 2,900 feet of water last December by a University of Miami team using advanced sonar techniques. A primary goal of the upcoming expedition, which is funded largely by the State of Florida’s “Florida Oceans Ini
Dartmouth physicians and engineers are collaborating to test new imaging techniques to find breast abnormalities, including cancer. Results from their latest study, which involved magnetic resonance-guided near-infrared imaging, appear in the May 22 issue of the Proceedings of the National Academy of Sciences (PNAS).
“This paper is the culmination of five years of work to build a completely new type of imaging system, which integrates magnetic resonance imaging (MRI) and near-infrared i
In a study of the effects of aging on gene expression, researchers have found that variation in gene expression among individuals tends to increase with age. The findings, which impact our understanding of the molecular forces that govern age-related changes, are reported in the May 23rd issue of Current Biology by Mehmet Somel and colleagues at the Max Planck Institute for Evolutionary Anthropology and the University of Cambridge.
One long-standing observation concerning the physiologic
Newfound differences in turtle behavior pose a conservation challenge
Studying members of a large population of loggerhead sea turtles that nest on the Cape Verde islands off of West Africa, researchers have found an unexpected dichotomy in turtle behavior: While some turtles leave the nesting grounds to feed on bottom-dwelling sea life in shallow coastal waters, others leave Cape Verde to roam the much deeper open ocean along the African coast and exhibit a distinct feeding strategy.
The world’s smallest life forms could be the answer to one of today’s biggest problems: providing sustainable, renewable energy for the future. Using a variety of natural food sources, bacteria can be used to create electricity, produce alternative fuels like ethanol and even boost the output of existing oil wells, according to research being presented this week at the 106th General Meeting of the (ASM) American Society for Microbiology in Orlando, Florida.
“Microbial fuel cel
Patients with the nighttime breathing disorder known as obstructive sleep apnea who receive air through a mask while they sleep can significantly reduce their blood pressure, according to a study to be presented at the American Thoracic Society International Conference on May 22nd.
“Sleep apnea can have significant consequences on a person’s physical health, and this study shows once again that treatment may lessen those risks,” said lead researcher Daniel Norman, M.D., Fellow in
Since late 2004, a large outbreak of chikungunya fever in the Indian Ocean has caused a public health crisis and alarmed international experts. A team of scientists led by Sylvain Brisse (of the Pasteur Institute) now reports the first molecular data on the viruses involved in the outbreak in the international open-access journal PLoS Medicine.
The outbreak affects the populations of Comoros, Mayotte, Madagascar, Mauritius, Seychelles, and Réunion. It is much larger than any previous out
People with diabetes, heart failure, chronic obstructive pulmonary disease and inflammatory diseases such as rheumatoid arthritis are at increased risk of death when they are exposed to particulate air pollution, or soot, for one or more years, according to a study to be presented at the American Thoracic Society International Conference on May 22nd.
The study looked at hospital discharges for people with these four types of diseases living in 34 cities between 1985 and 1999. The research
Researchers at Mount Sinai School of Medicine have found that an improved version of the non-invasive fecal DNA (fDNA) test to screen for colon cancer (CRC) demonstrates a higher sensitivity for detecting cancers of the colon. This data will be presented at the Digestive Disease Week (DDW) conference on May 21, 2006 in Los Angeles.
Previous studies have shown that a first generation fDNA test (PV1) was effective in the detection of colon cancer but partial degradation of DNA was a limi
Testosterone therapy does not cause adverse effects on the prostate in older men with hypogonadism, commonly known as low testosterone or low T, according to a clinical trial presented today at a national urology meeting in Atlanta. The study, which focused on direct measurement of testosterone in prostate tissues, carries important implications for the millions of men with low testosterone, who may benefit from testosterone replacement therapy. Results from the study were presented in two abstra
Findings to be published in the journal Nature
Researchers from the University of Colorado-Denver and Health Sciences Center and Stanford University have discovered a molecular mechanism that explains how cells respond to DNA damage and other acute stresses, and if disrupted can cause cancer. Their findings, which could lead to new diagnostic markers and cancer treatments with fewer side effects, will appear in two reports in the May 21 advanced online version of the journal Natu
In the first clinical study of its kind in North America, women with stress urinary incontinence (SUI) were treated using muscle-derived stem cell injections to strengthen deficient sphincter muscles responsible for the condition. Results of the study, led by researchers at the University of Pittsburgh School of Medicine and Sunnybrook Health Sciences Centre in Toronto, suggest that the approach is safe, improves patients’ quality of life and may be an effective treatment for SUI. The findin
IP 751, a potent synthetic analog of a metabolite of THC–the principal active ingredient of marijuana–effectively suppresses pain in hypersensitive bladder disorders such as interstitial cystitis (IC), according to animal model study results presented today at the annual meeting of the American Urological Association.
IP 751 is a potent anti-inflammatory and a powerful analgesic, although the mechanisms by which it works are unknown. However, since the drug is insoluble in water, its a
Miniaturised and wireless electronics step in new age
Technical Research Centre of Finland VTT, in co-operation with VTI technologies Oy, has developed a new timer circuit that is one hundred times smaller than the traditional quartz crystal. The substitution of quartz for silicon opens up totally new possibilities for reducing the size of electronic devices and for improving their performance. The device is especially helpful in the realization of wireless electronics. For exampl
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