Scientists reveal structure of gateways to gene control
...some spool will help to focus research designed to manipulate gene expression. "Our study has provided a much clearer picture of the architecture of the DNA in the control regions, allowing us to understand much better how genes are regulated, which is important because gene regulation is a critical process fo...Widely used iron nanoparticles exhibit toxic effects on neuronal cells
...s for use in in vitro studies as a possible way to manipulate nerve cells remotely with magnetic force. Eventually they had hoped to conduct in vivo experiments, using nanoparticles-laden nerve cells to bridge regions of damaged neurons. However, when they added nerve growth factor to nanoparticle-laden cells i...ACS News Service Weekly PressPac -- March 21, 2007
...ould make one inch) to deliver drugs into cells or manipulate genes and other biological molecules. Chemists and...husiastic about such techniques as a simple way to manipulate genes. The new scissors-like molecular machine uses a photo-responsive chemical group that extend......ength, small enough to deliver drugs into cells or manipulate genes and other biological molecules, says princip...because it would provide them with a simple way to manipulate genes and other molecules. It is known, for example, that near-infrared light can reach deep part...Termites get the vibe on what tastes good
...ss their food, we might be able to exploit this to manipulate their feeding habits, and address the very significant problem of termite damage in buildings and other structures," Mr Inta says. ...$7.9M awarded to UCI stem cell scientists
...l biology, was awarded $2.5 million to genetically manipulate human embryonic stem cells to study their growth. His study could speed up efforts to make specialized cell types both for cell-based therapies and to develop drugs to treat diseases. Because human embryonic stem cells are derived from early embryos,...Super small nanoelectrodes can probe microscale environments
...tached to a much larger probe, the researchers can manipulate the nanotube like a needle. They can control precisely where the nanotube penetrates a cell, for example, and even pinpoint smaller cell structures, such as the nucleus or mitochondrion. "Nanoelectrodes offer new opportunities for electrochemical sen...Microscopic sea creatures provide foundation for gas sensors and other devices
...oduced, further research is needed to learn how to manipulate the genome of the diatom. Since scientists already know how to culture diatoms in large volumes, harnessing the diatom genetic code could allow mass-production of complex and tailored microscopic structures. Sandhages colleagues, Prof. Nils Krger (G...Plant size morphs dramatically as scientists tinker with outer layer
...indings could eventually be used by agronomists to manipulate plant growth pathways to maximize crop yield, or even reduce leaf size or leaf angle in plants that need to be spaced closely together, says the study's lead author, Joanne Chory, Ph.D., professor and director of the Plant Biology Laboratory and inve...New success in engineering plant oils
...c pathways that produce these oils to find ways to manipulate the accumulation of fats using genetic techniques." The researchers focused on an enzyme known as KASII that normally elongates fatty acid chains by adding two carbon atoms. The longer 18-carbon chains are more likely to be acted on by enzymes that...MIT bioengineer advances survival, promise of adult stem cells
...ly response, Griffith and her team sought a way to manipulate the environment surrounding the cells to make conditions more favorable for survival. They zeroed in on a growth factor known as EGF, which plays a role in growth and differentiation of many cells, including stem cells. However, its ability to protec...Computer program bridges gap between scientists, water policy makers
...onal environmental and policy conditions. As users manipulate those conditions, they can see how those decisions would affect water availability in central Arizona. For example, as Phoenix's population increases, more water will be needed. WaterSim also allows users to visualize futures with rapid or slow econo...Getting on your nerves ... and repairing them
...lumn. This research may lead to new therapies that manipulate RNAi to treat people with damaged nerves resulting from degenerative disorders and injury. Andrew Z. Fire of Stanford University and Craig C. Mello of the University of Massachusetts won the 2006 Nobel Prize for the discovery of RNAi. This study b...Super-thin membrane, 50 atoms thick, sorts individual molecules
..., may revolutionize the way doctors and scientists manipulate objects as small as a molecule. The 50-atom thick filter can withstand surprisingly high pressures and may be a key to better separation of blood proteins for dialysis patients, speeding ion exchange in fuel cells, creating a new environment for gr...Researcher to study astronaut bone loss for space biology agency
...onauts," Long says. "We hope to find that we can manipulate the IGF-1 system to accelerate rehabilitation, not only among astronauts but among a broad range of patients," says Bikle. "We might also learn how to prevent bone loss from taking place." Long concludes, "I am excited and honored to contribute to ...Shedding new light on proteorhodopsin
...tify the most efficient forms of the protein, then manipulate microbial genomes through the addition or deletion of key genes. ...Nanotechnology meets biology and DNA finds its groove
...here we want it to be. It is important that we can manipulate it with such fidelity." The system, says Schwartz, promises bench scientists a convenient and easy way to make large numbers of individual DNA molecules accessible for study. The ability to quickly get lots of molecules lined up for sequencing and ...Gene knockouts reveal FoxOs' vital functions in cancer defense, health of stem cells
...Conceivably, he added, drugs could be developed to manipulate the FoxO pathway and extend the lives of stem cells beyond their natural limits, which could aid their use in repairing diseased body tissues. The results raised an important question: If the PI3K pathway and the FoxO factors are so prominent in ca...Nanotechnology for Biological, Biomedical and Chemical Sensing
...and commercialization. Nanotechnology's ability to manipulate atoms and molecules enables us to create nanoscale materials and novel device structures with fundamentally new properties and unprecedented functions. Nanotechnology is anticipated to dramatically change every aspect of our lives. Among the diverse ......romising, researchers are still working on ways to manipulate these elusive bone marrow cells and get them to generate "designer immune cells." Another problem seems to be making sure lentiviral vectors target only hematopoietic stem cells, and not other types of cells, to achieve the desired targeted delivery...