New, more direct pathways from outside the cell-to-cell nuclei discovered
...t pathways between extracellular material and cell nuclei will be published on August 10, 2007 in Cell Motil...ystematically search for phagosome clusters around nuclei until he received NSF funding in 2006 to purchase a confocal microscope, which provides three dimens......cer. Intricate DNA repair mechanisms in the cells' nuclei are constantly working to fix what's broken, but w...those found in cosmic rays, such as energetic iron nuclei produced in accelerators at Brookhaven National Laboratory. The goal is to determine how many double...Steroids, not songs, spur growth of brain regions in sparrows
...eople because many thought seasonal growth of song nuclei was related to the rate of singing, he said. While the research was conducted on birds, it also has potential long-term human applications, addressing the broad issue of environment enrichment supporting brain plasticity. This study suggests that p...Fruit fly research may 'clean up' conventional impressions of biology
... The team's findings indicate that two neighboring nuclei can determine their different places and functions within the embryo accurately if the concentration of Bicoid between them varies by only about 10 percent -- a quantity that on the scale of the tiny embryo amounts to only a few molecules of Bicoid. ...Scientists to make news at Computational Biology Conference
.... From new ways to discern how DNA folds into cell nuclei to possible treatments for diseases such as cancer, both basic and applied biology are getting a boost from researchers who call themselves bioinformaticians and whose "laboratories" are spread across chips and measured in terabytes. Several of th...Bacteria ferry nanoparticles into cells for early diagnosis, treatment
...particle-laden bacteria transported the DNA to the nuclei of cells, causing the cells to produce a fluorescent protein that glowed green. The same method could be used to deliver drugs, genes or other cargo into cells. "The released cargo is designed to be transported to different locations in the cells t...Better chemistry through living models
...t sites where electrocatalysis takes place contain nuclei made up of iron-iron or nickel-iron complexes. These enzymes high catalytic activity suggests that properly designed synthetic catalysts based on inexpensive metals can be used in fuel cells for this important energy-conversion reaction in place o...A nurse makes the decision on who will live
...ymic nurse cell in photos, the blue dye stains the nuclei of thymocytes inside of a nurse cell). Whether or not thymic nurse cells have the capacity to "internalize" another cell into itself, and the function of this unique biological phenomenon during T cell development is the focus of studies performed b...New clues for treatment of disease that causes accelerated aging
...s from one of the infants with this drug, the cell nuclei visibly improved. "If this adds to the impetus for trials of these new drugs, then we may yet be able to bring some good from the tragic deaths of these infants," Miner says.The Progeria Research Foundation is currently raising funds for a clinical t...First research to show that diabetes damages DNA in men's sperm and may affect fertility
...lfast, Northern Ireland showed that the DNA in the nuclei of the sperm cells had greater levels of fragmentation in diabetic men (52%, versus 32% in non-diabetic men), and that there were more deletions of DNA in the tiny, energy-generating structures in the cells called mitochondria (4 versus 3). Dr Isho...News tips from the Journal of Neuroscience
...nsation. This week, Kim et al. mapped the thalamic nuclei in which damage specifically produces allodynia, a...al caudal (Vc) and ventral medial posterior (VMpo) nuclei would be necessary to alter cold sensations and produce CPSP. Although all subjects had lesions to ...Enhanced environment restores memory in mice with neurodegeneration
... and memory," she said. Chromatin is found in the nuclei of cells. It is composed of DNA spooled around bundles of histone proteins. The addition of small chemical tags to known as acetyl of methyl groups to the histones can alter the way chromatin is organized, which in turn determines which genes are tur...Award lectures for ASBMB's 2007 Annual Meeting
...anti-obesity effects of a receptor located on cell nuclei called peroxisome proliferator-activated receptor delta (PPAR-delta). The receptor is already known to regulate inflammation, suggesting it may be an effective drug against heart disease. Evans and his team have shown that PPAR-delta helps the liver ...Blood's clotting cells harbor 'ticking time bombs,' finding may help extend blood supply
...nt know what was controlling their life span. Cell nuclei contain the genetic instructions that ultimately direct the activities of other kinds of cells. The finding has a whole list of potential implications, added study collaborator Benjamin Kile, also of The Walter and Eliza Hall Institute of Medical R...Scientists uncover link between ocean's chemical processes and microscopic floating plants
...sphere," said Wingenter. These aerosols can act as nuclei for cloud formation. Increased cloudiness could block sunlight, thereby cooling Earth. "Therefore, additional DMS production in a higher carbon dioxide environment may help contribute to self-regulation of Earth's climate." "The bottom line is that c...... granulocytes could mobilise the contents of their nuclei and catapult it out of the cells. Only after len...ated by bacteria and modify the structure of their nuclei and granules, small enzyme deposits in the cytoplasm. "The nuclear membrane disintegrates, the granu...ORNL researchers, supercomputer have large roles in DOE projects
...guar, aims to calculate the physical properties of nuclei based on interactions among neutrons and protons. This will help scientists gain a better understanding of nuclear forces and characteristics relevant to nuclear astrophysics and other applications. Robert Harrison of the Computer Science and Mathe...A new male-specific gene in algae unveils an origin of male and female
...d it encodes a protein localized abundantly in the nuclei of mature sperm. The findings indicate that P. starrii maleness evolved from the dominant sex (MT-) of its isogamous ancestor. This breakthrough in understanding provides an opportunity to address any number of extremely interesting questions regardi...University of Alberta researchers discover hummingbird secret
... stationary 90 per cent of the time. This specific nuclei is likely responsible for that." Wong-Wylie and Iwaniuk plan to continue this line of research and have hummingbirds track visual motion while watching the nucleus to see how it reacts....... broader focus on histones, the tiny spools in the nuclei of cells around which DNA winds and compacts when it is not in the process of copying in cell division. Changes in these histones, called epigentic changes, can alter gene expression and the proteins these genes produce without altering the underlyin...