Bee researcher at Arizona State University is 1 of 20 new Pew Scholars in the biomedical sciences
... According to Amdam, her Pew project will join two lines of study that have never been coupled: the emerging field of honeybee comparative neurogerontology in which Amdam has published the first work on plasticity of neuronal oxidative damage and honeybee behavioral physiology, where cumulative data show......all mouse genes in cell culture and create 900 new lines of mutant mice by 2010 an effort NIH says will be extremely useful for the study of human disease. Simpler, Faster Mutations in the Whole Mouse Genome Existing gene-targeting methods for deleting large segments of DNA are time-consuming and e...Screening approach leads to discovery of gene linked to breast cancer
... the genetic alterations within breast cancer cell lines and tumors," Hahn says. "Integrating these techniques allowed us to identify a new breast cancer oncogene and show that it plays a crucial role in the formation and survival of tumors." The discovery that mutated IKBKE helps sustain a sizable perce...UVa-led team uncovers important secret in gene replication
... packaging. This finding held true for both cell lines studied, the HeLa cervical cancer cell line and a ... different cell lines. The difference between cell lines is where biology lies. ...U-M researchers discover gene switched off in cancer can be turned on
... says. The researchers targeted lung cancer cell lines in particular, although they found similar results in a variety of other cancer cell lines tested. A potential target to treat lung cancer is particularly crucial as the death rate from lung ...Dartmouth professor makes case for ethically universal stem cell lines
...ns and the scientific feasibility of deriving hESC lines in ways that avoid destroying living human embryos... argues, these alternatives can make possible hESC lines that are ethically universal. These would be analogous to the universal O-type blood group: lines th...Pesticides choke pathway for nature to produce nitrogen for crops
...on. "In essence, the agrichemicals are cutting the lines of communication between the host plant and symbiotic bacteria. This is the mechanism by which these chemicals reduce symbiosis and nitrogen fixation." Fox began the project as a doctoral student with John A. McLachlan, director of the Center for B...Rutgers: GM/GMO/Biotech crop containment strategy
...e tools that can be used to identify those genetic lines in every crop that will transmit plastids only at a low frequency, Maliga said. ...University of Pittsburgh scientists find new contributor to aggressive cancers
...in 7 genes from 66 human cancer specimens and cell lines representing a number of different kinds of cancer...reased the level of integrin 7 in two cancer cells lines using siRNAs, or silencing RNAs, both cell lines formed more colonies and grew better than correspon...Envisat captures first image of Sargassum from space
...y of South Florida were able to identify extensive lines of floating Sargassum in the western Gulf of Mexic... by early explorers. Our observations of Sargassum lines extending over large areas of the Gulf show that in this area and season it represents a significant...A twist of fate -- Reprogrammed fibroblasts resemble embryonic stem cells
...ies aimed at generating patient-specific stem cell lines are discussed in the review article by Dr. Shinya Yamanaka in the current issue of Cell Stem Cell.......ll helpers. Our study provides three independent lines of evidence gene expression, pharmacology and RNA interference (RNAi) that converge on one conclusion: selection can have acted on the TOR pathway to enable two distinct phenotypes to evolve in the bee, says Gro Amdam, an assistant professor in ASU...Finding protection from tumor growth in unexpected places
...as confirmed using several different melanoma cell lines and by using different strains of mice expressing high levels of ACE in macrophages. Interestingly, the small tumors of ACE 10/10 mice contained significantly higher numbers of white blood cells, suggesting a large anti-tumor immune response. To c...Other highlights from the June 6 JNCI
...ression in prostate cancer and leiomyosarcoma cell lines was restored to normal levels, tumors generated from these cells grew more slowly and produced fewer metastates. The ubiquitous expression of integrin 7 in human organs and widespread mutations of this gene in human cancers raise the possibility th...Scientists develop new drugs to fight colon and breast cancer more effectively
...ly used drugs, says Caba Prez. Research on cell lines So far, the study has been conducted on cell lines, and not on patients, using a new technique called Microarrays or DNA Chips, which enables the identification of the effects produced by drugs on each gene the lowest and most specific level that...New research shows sharks use their noses and bodies to locate smells
... and in two sensory conditions with their lateral lines intact or lesioned by streptomycin," explained Gar... based on hair cells. Sharks with their lateral lines intact demonstrated a preference for the odor plume over the seawater plume and, more specifically, ...New mouse model closely mimics human cancers
...titute, its researchers analyzed human cancer cell lines and clinical samples to identify the new mutated genes. These studies have uncovered an unexpectedly large number of genetic alterations present in the typical human cancer genome, presenting challenges in the identification of truly causative events...Stem cells may look malignant, not act it
...ld have implications for the integrity of the cell lines scientists use to test new cancer drugs in the lab. Up to 5 percent of cancerous tissue contains marrow-derived cells that look just like surrounding cancer. So when malignant tissue is grown in the laboratory for experiments that test the effects ...2007 Joint Assembly in Acapulco -- press conference schedule
...ounger Dryas Event. Speakers will discuss numerous lines of evidence contributing to the impact hypothesis. The nature and frequency of this new kind of impact event could have major implications for our understanding of extinctions and climate change. Participants Richard Firestone : Staff Scientist......ductions came from Chile. While there are multiple lines of evidence to support each theory, the Andean introduction hypothesis stems from the belief that the Canary Islands landraces are solely of Andean origin. Although almost all current European potatoes have Chilean traits, the Andean hypothesis suppo...