Enzyme, lost in most mammals, is shown to protect against UV-induced skin cancer
In a finding that broadens our insight intothe cause of certain kinds of UV-induced skin cancer, researchers atErasmus University Medical Center (Rotterdam, The Netherlands) haveemployed an evolutionarily ancient enzyme-repair system to identify theprincipal type of DNA damage responsible for the onset of skin-tumordevelopment. The researchers' findings also suggest that this enzymesystem m...Master gene controls healing of skin in fruit flies and mammals
University of California, San Diego biologists and their colleagues have discovered that the genetic system controlling the development and repair of insect cuticle--the outer layer of the body surface in insects--also controls these processes in mammalian skin, a finding that could lead to new insights into the healing of wounds and treatment of cancer. The UCSD biologists' study, publish...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 dolphin or killer whale. Reporting in the June 30 edition of the peer-reviewed journal Nature, UCLA/Veterans Affairs neuroscientists report a developmental pattern in bottlenose dolphins and killer whales that is unique from other mammals, with calves of both species active 24 hours a day during th...Oxygen increase caused mammals to triumph, researchers say
The first, high resolution continuous record of oxygen concentration in the earth's atmosphere shows that a sharp rise in oxygen about 50 million years ago gave mammals the evolutionary boost they needed to dominate the planet, according to Paul Falkowski, Rutgers professor of marine science and lead author of a paper published Sept. 30 in the journal Science. Falkowski and his colleague...Evolutionary conservation of a mechanism of longevity from worms to mammals
Though the study of aging in the nematode model organism C. elegans has provided much insight into this complex process, it is not yet clear whether genes involved in aging in the worm have a similar role in mammals. In a recent study, Dr. Hekimi and colleagues of McGill University (Canada) report that inactivation of the gene mclk1, the murine ortholog of the C. elegans gene clk-1, results in i...Mammals microRNA Microarray from LC Sciences
Description:Microarrays designed for genome-wide microRNA expression profiling and built on the flexible and powerful Paraflo microfluidic on-chip synthesis platform. These microarrays are available as part of our comprehensive microRNA Expression Profiling Service. The Mammals microRNA Microarray contains all known mammal microRNAs (802 unique mature sequences). The comprehens...Pollutant TBT Affects Hearing in Marine Mammals
According to the researchers from Yale School of Medicine it is found that chloride ions are critical to hearing in mammals//. Joseph Santos-Sacchi, professor in the Departments of Surgery and Neurobiology and first author of the study said that hearing in marine and other mammals could be affected by environmental toxins, such as TBT (tributyl tin). The study indicates that this envir...Scientist Observes real Time Generation of Neurones in Mammals
A scientist at the Hebrew University of Jerusalem says that he has observed the real time generation of neurones in a mammals brain, the first ever claim of such kind in the world. Dr. Adi Mizrahi of the Department of Neurobiology, Alexander Silberman Institute of Life Sciences, used mouse models to study how neurones develop from an undifferentiated cellular sphere into a rich an...One-sixth of Europe's Mammals Face Extinction, Warns Conservation Experts
A comprehensive survey carried out by the World Conservation Union (IUCN) has said that a sixth of Europe's mammal species is threatened with extinction. Unless the trend is reversed, conservationists fear that the European Union will not be able to meet its self-imposed target of halting biodiversity loss by 2010. Of the roughly 250 mammal species that live in Europe...