Engineered skin offers clues to melanoma development
...oratory mice. The mice were observed for up to six months and sacrificed at different time points to examine the skin grafts for signs of melanoma and to determine whether the cancer had metastasized. The researchers began by introducing several mutant genes commonly found in human melanomas. These included...Lance Armstrong through a physiological lens: hard training boosts muscle power 8%
...s, surgery, chemotherapy and recovery. About eight months after chemotherapy ceased (August 1997), Armstrong was tested in Coyle's laboratory in the same manner as in his other four visits. The results showed that he "displayed no ill-effects from his previous surgeries and chemotherapy" and were in line wi...Maternal alcohol use increases the risk of newborn infections
...e asked about alcohol and tobacco use in the three months prior to conception, and during the first, second and third trimester of pregnancy. Information, including gender, gestational age, and size relative to gestational age, was also collected about their infants. "Of the 872 term infants, 5.8 percent ......s of Asia. The announcement also comes just a few months after WCS conservationists learned the Olga, a 14-...ootprints in the snow. With some workers spending months in the field and covering over 21,000 km (13,000 miles) of transects by foot, ski, snowmobile, and c...Assessing the Amazon River's sensitivity to deforestation
... km2 basin, and by itself, took 5 people over nine months to create. Researchers all over the globe are now using this data. The second phase, led by Michael Coe, an associate scientist with The Woods Hole Research Center, was to build the first comprehensive computer model of the Amazon River and floodpla...Breast cancer growth regulator holds promise for more targeted treatment
...atment with letrozole and then one month and three months after letrozole therapy. The team measured sEGFR c...ecreased in 73 percent of patients and after three months of letrozole therapy, sEGFR concentrations decreased in 76 percent of patients when compared to pret...Antibiotics help combat dangerous tropical disease
...up to 1,300 of them per millilitre of blood. Eight months later they had almost completely disappeared; only...tibiotic also killed off the adult worms. Fourteen months after being treated with doxycyclin the doctors were only able to detect the typical movements of th...Unlike other mammals, newborn dolphins and orcas stay active 24/7 during first months of development
If you thought the sleep-deprived months with your newborn were tough, pity the poor mother... mothers gradually increase sleep over a period of months until they reach normal adult levels. As the newborns grow, neither mothers nor offspring show count...Women feel more pain than men, research shows
... during and immediately after the programme, three months later women reported the same levels of pain as pre-treatment, whereas men's remained the same as immediately post-treatment. Interestingly, there were improvements in disability, in both sexes, which were maintained at follow-up. This suggested that...Actin moves chromosomes: Discovery changes fundamental thinking
...ges and some types of birth defects. Lnrt spent 18 months optimizing an imaging technology, with help from collaborators at the German Cancer Research Center (DKFZ), to visualize the delicate actin fibres before he could confirm the group's fundamental breakthrough. He observed a network of filamentous acti...New treatment extends survival for patients with advanced lung cancer
...ile patients on placebo survived an average of 4.7 months a 42.5 per cent improvement. Of the patients receiving erlotinib, 31 per cent were alive after one year, compared to only 22 per cent of patients receiving placebo. Unlike many chemotherapies, erlotinib was generally well-tolerated and caused only m......vaccinations about one month apart provide several months of immunity. The team's aim is to provide lifelong immunity with one or two shots, though they say the vaccine will still be beneficial even it has to be given yearly. There is no reason why the vaccine would not work in people too. But safety issue...UF study finds cell mutations that lead to apoptosis may contribute to aging in mammals
...lived a third as long as normal mice. At just nine months of age, they experienced significant loss of hair,... was observed between mutant and control mice at 3 months of age. However, by the time the mice reached 9 months, significant levels of programmed cell death ...Would boosting the oxytocin system lead to longer breast-feeding?
...ompelling case for breastfeeding for the six-to-12 months recommended by the American Academy of Pediatrics. "However one major reason why women stop breastfeeding is low weight gain and growth rate of their baby," Steven L. Bealer of the University of Utah points out. His team of researchers decided to fin...Research professionals applaud STN AnaVist
...ly launched their new STN AnaVist software. After months of extensive use in testing, research professionals and other experts predict that STN AnaVist will quickly establish itself as a standard for patent and competitive intelligence analysis tools. They are hailing STN AnaVist's innovative capabilities...FSU scientist warns North Atlantic right whale facing extinction
...nprecedented eight whale deaths during the past 16 months -- almost three times the average annual rate in 25 years of study of the species -- including six adult females, three of which carried near-term fetuses. At least four of the whales were killed by human activities; ships hit three; and one whale wa...Endangered North Atlantic right whale study says population in crisis
...ut 350. With eight recorded deaths in the past 16 months and a population growth rate that has declined sin...fference. The eight deaths reported in the past 16 months is almost three times the average annual rate of mortality. If something isn't done to turn this aro...Bone marrow may be source of new egg-cell generation in adult mammals
...dreds appearing over the next 12 to 24 hours. Two months later, ovaries from the treated mice looked identi... from untreated, genetically normal females. Two months after the chemotherapy-treated mice received donor marrow, their ovaries looked identical to those o...Stem cells in bone marrow replenish mouse ovaries
...ng group of cells that encloses each egg cell. Two months after bone marrow transplant, the ovaries of normal mice and mice that had undergone chemotherapy appeared nearly identical, Tilly and colleagues discovered. Expression of a germ cell marker in bone marrow fluctuated regularly with the female mouse's...Scientists develop nanotech-laser treatment that kills cancer cells without harming healthy tissue
...s. This benign therapy could potentially eliminate months of debilitating chemotherapy and radiation treatment, he adds. "The laser we used is a 3-centimeter beam that's held like a flashlight," he notes. "We can take the beam and put anywhere we want. We can shine it on a local area of the skin or inside a...