Battle between bubbles might have started evolution
...n fatty bubbles stuffed with genetic material. The scientists suggest that genetic material that replicated quic...e existed at the beginning of evolution. When the scientists mixed the two vesicles, they observed that the ones with sucrose in which there was greater membran...Skin stem cells give hairless mice hair
...at the human equivalent of these stem cells, which scientists are also trying to isolate, could ultimately be used to regenerate skin and hair, the researchers said. Stem cells -- isolated from embryos or from adult tissue -- are immature progenitor cells with the capability to differentiate into a variety of ...A genetic disorder yields insight into genes and cognition
...e function." Such insights, they said, should help scientists trace the genetic origin and molecular causes of the disorder....Essential smell gene may provide key to new insect repellents
...d mystery The ubiquitous Or83b gene has perplexed scientists since 1994, when Vosshall and her colleague Hubert... smell at all, either as larvae or as adults. The scientists tested the flies' sense of smell by three methods. First they placed larvae one at a time in the mid...Flame retardants found on supermarket shelves
...have been detected in humans across the globe, but scientists are not certain how they are getting there. Our paper is the first U.S. market basket food survey for brominated flame retardants, says the studys lead author Arnold Schecter, M.D., M.P.H., an environmental health expert at the University of Texas...Chernobyl study: Risk of thyroid cancer rises with radiation dose
...team organized a collaborative effort with a dozen scientists at four Russian institutions to conduct this resea...ailable to initiate these studies, Davis said that scientists and citizens of the three countries were eager for the research from the start. "Our collaborators i...DHA-rich diet protects brain from Alzheimer's damage, UCLA study shows
...memory loss or synaptic brain damage, however, the scientists took a closer look at the animals' diet. "We discovered that the mice lived on a nutritious diet of soy and fish two ingredients chock-full of omega-3 fatty acids," said Sally Frautschy, Ph.D., co-author and an associate professor of neurology ...Study reveals first genetic step necessary for prostate cancer growth
... in cancers that occur sporadically in humans. The scientists found that upon losing even one copy of the Rb gene in prostate cells, mice developed a condition known as focal hyperplasia, characterized by precancerous growths. Nearly a year after they formed, the growths did not become cancerous. "This suggests...New imaging technology at Joslin shown to detect early signs of type 1 diabetes
... show that a powerful new imaging technology gives scientists a glimpse into the earliest stages of the inflammatory process leading to type 1 diabetes in laboratory animals. The new findings one day may be useful for predicting whether and when diabetes will develop in humans. Type 1 diabetes is an autoimm...Disease diagnosis, drug development focus of UH prof's biochip research
... Australia. Pettitt is one of only three American scientists among the 21 invited speakers. "The biochip industry is a new and nearly billion-dollar industry and is ready to grow 10- to 100-fold very shortly," Pettitt said. "Biochips are a reality now, but they are still crude. At the University of Housto...Researchers identify the genome's controlling elements
...h mutated gene regulators, which is one reason why scientists are so interested in them. The problem is that v...o nail down the exact landing points. As a result, scientists now can begin to understand how genes and their regulators "talk" to each other. According to Fraenk...Scientists discover proteins involved in spread of HIV-1 infection
...ry and use it for its own purposes. Previously, scientists determined that the yeast version of TSG101, calle...a family of four different VPS37 proteins that the scientists named VPS37A-D. Says Sundquist, "We do not yet fully understand why humans have four different VPS37...Protein involved in childhood disorder linked to cancer
A team of scientists has found that a protein involved in a congenital ... recruited to sites of DNA breaks. From this, the scientists concluded that microcephalin is an important participant in or regulator of DNA checkpoint responses...Molecular motor myosin VI moves 'hand over hand,' researchers say
...oteins perform their duties is becoming clearer to scientists using an extremely sensitive measurement technique...ar the dye moved." By examining the step size, the scientists could determine whether the protein used a hand-over-hand mechanism or an inchworm mechanism for mov...NIGMS funds Center for Quantitative Biology
... and teaching. In addition to bringing together 40 scientists from physical, computational and biological scienc... ongoing NIGMS initiatives to recruit quantitative scientists and harness computer modeling approaches for biological research. By bringing together computational...NASA satellites detect 'glow' of plankton in black waters
For the first time, scientists may now detect a phytoplankton bloom in its early stages by looking at its red "glow" under sunlight, due to the unique data from two NASA satellites. According to a study conducted in the Gulf of Mexico, this phenomenon can forewarn fishermen and sw...How an insidious mutation fools DNA replication
...d online Aug. 22, 2004, by the journal Nature. The scientists were led by Associate Professor of Biochemistry Lorena Beese, Ph.D., and the paper's lead author was Gerald Hsu, a Duke M.D./Ph.D. student. The other co-authors are Thomas Carell and Matthias Ober of Ludwig Maximillians University in Germany. Their r...Researchers improve detection of diverse anthrax strains
...ensic investigation into previous events." TIGR's scientists sequenced the genomes of five isolates, or strains...he sequence of entire microbial genomes is helping scientists unravel the complex evolutionary history of this lethal agent." The SNPs described in this work wer...Probing the surface of white blood cells to enhance immune system medicine
...ls known as microvilli. "If you asked most medical scientists what a white blood cell looked like they would say a smooth sphere that floats around in the blood, but, in fact, they are not smooth at all they have these wonderful invaginations and protrusions coming off of them," explained Higgs, who is also a ......ions of herbal drugs, an international team of MIT scientists and colleagues has unraveled the yin and the yang of ginseng, or why the popular alternative medicine can have two entirely different, opposing effects on the body. Conflicting scientific articles report that ginseng can both promote the growth of b...