In a first, Einstein scientists discover the dynamics of transcription in living mammalian cells
August 6, 2007 (BRONX, NY) Transcription the transfer of DNAs genetic information through the synthesis of complementary molecules of messenger RNA forms the basis of all cellular activities. Yet little is known about the dynamics of the process how efficient it is or how long it takes. Now, researche...Discovery of new protein could provide new understanding of male fertility
... E2 and the protein to be degraded, so that E2 can transfer the ubiquitin to the protein. By binding to other ubiquitin-carrying E2 enzymes, E3 transfers many ubiquitins to the protein, signaling to the cell that the protein needs to be degraded. Until now, only one type of E1 enzyme for ubiquitin has been...Scientists prove that disputed Korean stem cell line comes from an unfertilized egg and not cloning
...ce of sperm. ES cells generated by somatic nuclear transfer (ntES) are derived from embryos that are created w...hES-1 cell line was not derived by somatic nuclear transfer as was previously claimed. Our analysis shows that the recombination pattern of SCNT-hES-1 is distin...Discredited Korean embryonic stem cells' true origins revealed
...s through somatic cell nuclear transfer, entailing transfer of genetic material from a cell in the body into a... from embryos created through somatic cell nuclear transfer (replacing the nucleus of an egg with the nucleus from a cell in the body). They also tested three h...Forsyth scientists gain new understanding of adult stem cell regulation
...k, highlighting the importance of direct cell-cell transfer of small molecules between stem cells and their ne... Drs. Oviedo and Levin focused on direct cell-cell transfer of small molecules and ions as crucial signals that determine behavior of adult stem cells in vivo. ...Nanotechnology helps scientists make bendy sensors for hydrogen vehicles
...using chemical vapor deposition. Then, researchers transfer the SWNTs onto a plastic substrate at temperatures...er than 150 degrees C using a technique called dry transfer printing. This precise process is what allows the film of nanotubes to form on the plastic, after ...Investigating antibiotic use in acute care patients
...ntibiotic resistance bacteria that can potentially transfer resistance to incoming pathogens. "It is important to identify the antimicrobial resistant gene pool in entire microbial communities before antibiotic treatment. Dr Chin said this has been tested with E. coli in pigs. "Our research shows clear...A friendly foe -- Bacteria residing in the gut boost immune response to tumors
...nown as lymphocytes and then involves the adoptive transfer of tumor-specific T cells to the patient. Lymphodepletion has previously been shown to improve the ability of tumor-specific T cells to cause tumor regression. In a study appearing online on July 26 in advance of publication in the August print issue...JCI table of contents -- July 26, 2007
...nown as lymphocytes and then involves the adoptive transfer of tumor-specific T cells to the patient. Lymphodepletion has previously been shown to improve the ability of tumor-specific T cells to cause tumor regression. In a study appearing online on July 26 in advance of publication in the August print issue...Researchers watch antibiotics, bacteria meet at atomic level
...A new understanding of an enzyme important for the transfer of genetic information in bacteria may help scientists improve current antibiotics and also create antibiotics that are less vulnerable to resistance. Researchers used extremely powerful imaging techniques to see, for the first time, exactly what h...New role for protein in fat cells may improve understanding of obesity and diabetes
... for the first time that a protein involved in the transfer of fat in the blood may also influence how fat cel...e shown that the protein, called cholesteryl ester transfer protein (CETP), is involved in the cellular storage and regulation of cholesterol and other fats and...UC Santa Barbara scientists clarify molecular basis of interferon action
...of enzyme that is involved in phosphorylation, the transfer of phosphates from donor molecules to target molecules.) The researchers cultured human cancer derived cells with very low PKR or none at all. This allowed them to test the role of PKR in the cell. We found that with low PKR there is le...JCI table of contents: July 12, 2007
...isappeared with disease recovery, and was found to transfer disease to other healthy mice. The second clonotype, BV16/BJ2S5, persisted following recovery, consistent with the hypothesis that the other, BV8S2/BJ2S7 T cell clonotype, is the driver of disease and necessary for EAE/MS persistence. The identificat......, Governor Rounds established a project to oversee transfer of the Homestake property from Barrick Gold Corporation, which had earlier merged with the Homestake Mining Company, with the ultimate goal of converting the mine into a deep underground science and engineering laboratory. In 2004, at the urging ...News tips from the Journal of Neuroscience
... from the surface of the axons. Viralmediated gene transfer of myc-tagged BDNF into DRGs was later detected in Schwann cells, consistent with transfer of BDNF from DRG to Schwann cell. Overexpression of BDNF in DRGs also led to anterograde transport, ...New way to target and kill antibiotic-resistant bacteria found
...avoc inside E. coli bacteria that are preparing to transfer their genes, the researchers found. Exactly how bisphosphonates destroy each bacterium is still unknown, Redinbo said, but the drugs are potent, wiping out any E. coli carrying relaxase. That it killed bacteria was a surprise, he said. By targeting t...Penn researchers discover how microRNAs control protein synthesis
...PHIA While most RNAs work to create, package, and transfer proteins as determined by the cells immediate needs, miniature pieces of RNA, called microRNAs (miRNAs) regulate gene expression. Recently, researchers from the University of Pennsylvania School of Medicine determined how miRNAs team up with a regula...Germany's embryo protection law is 'killing embryos rather than protecting them'
...ollection of cells, freeze any surplus embryos and transfer no more than one or two embryos at one time. It is...ransferred an average decrease of 0.2 embryos per transfer worldwide since 2002 there is wide variation between different countries with live birth rates a...Pre-implantation genetic screening reduces both ongoing pregnancy and live birth rates in over 35s
...chromosomes that can be analysed could lead to the transfer of embryos that appear normal but are in fact abnormal for one or more chromosomes not tested. Finally, many embryos resulting from IVF may be mosaic, where a single cell does not properly reflect the chromosomal composition of the whole, so that c...Risk-taking in infertility treatment correlates with women's negative moods
...ence of multiple pregnancies with IVF requires the transfer of fewer, and ideally only one, embryo (single emb...versus a higher risk option SET versus two embryo transfer (2ET), and 2ET versus three embryo transfer (3ET), and then rating the riskiness of each choice, sai...