http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. The sequences of nonsense DNA that interrupt genes could be far more important to the evolution of genomes than previously thought, according to a recent Science report by Indiana University Bloomington and University of New Hampshire biologists. http://www.physorg.com/news179664799.html Biology Thu, 10 Dec 2009 10:54:30 EST news179664799 Bacteria possess an ingenious mechanism for preventing oxygen from harming the building blocks of the cell. This is the new finding of a team of biologists that includes Joris Messens of VIB, a life sciences research institute in Flanders, Belgium, connected to the Vrije Universiteit Brussel. The scientists made this discovery by modifying the DNA of the intestinal bacterium Escherichia coli. http://www.physorg.com/news177944623.html Biology Fri, 20 Nov 2009 13:30:01 EST news177944623 A man is a man and a mouse is a mouse, but if you talk to a few biomedical scientists about their research, at least one is likely to spring the term `mouse model` on you. http://www.physorg.com/news174843609.html Biology Thu, 15 Oct 2009 16:42:25 EST news174843609 New research announced today, Wednesday 30th September, by a team of leading scientists working with the UK's national Synchrotron, Diamond Light Source, could have a significant impact on the development and refinement of new eco-friendly pest control methods for worldwide agriculture. http://www.physorg.com/news173452384.html Biology Tue, 29 Sep 2009 14:40:01 EST news173452384 Researchers are delving into abnormal gene function in mitochondria, structures within cells that power our lives. Mitochondria are the place where energy is generated from the most basic molecules of food. Because this function is essential to life, defects in mitochondria may affect a wide range of organ systems in humans and animals. http://www.physorg.com/news173012799.html Medicine & Health Thu, 24 Sep 2009 12:07:55 EST news173012799 Sharing the fruits of research in the biomedical sciences is critical for the advance of knowledge, yet with the advent of large-scale data gathering following the completion of the genome projects this is becoming harder to facilitate and more difficult to monitor, as reported in Nature today. http://www.physorg.com/news171722207.html Biology Wed, 09 Sep 2009 13:39:19 EST news171722207 (PhysOrg.com) -- If you want to know how a cell responds to a particular chemical, the experiment is simple: Inject it with that chemical. Micropipettes - tiny needles that can puncture a cell and deliver a compound directly into it - are used precisely for this purpose. But biologists who study yeast have not had this tool available to them. A yeast cell`s rigid outer wall is too strong to be penetrated. http://www.physorg.com/news171221032.html Biology Thu, 03 Sep 2009 18:24:18 EST news171221032 A process that limits the number of times a cell divides works much differently than had been thought, opening the door to potential new anticancer therapies, researchers at UT Southwestern Medical Center report in the Aug. 7 issue of the journal Cell. http://www.physorg.com/news171026279.html Medicine & Health Tue, 01 Sep 2009 12:18:25 EST news171026279 A class of drugs already approved as cancer treatments might also help to beat alcohol addiction. That's the conclusion of a discovery in flies of a gene, dubbed happyhour, that has an important and previously unknown role in controlling the insects' response to alcohol. http://www.physorg.com/news162132556.html Medicine & Health Thu, 21 May 2009 13:49:56 EST news162132556 The essential chromosomal protein complex cohesin has crucial roles in sister chromatid cohesion, DNA repair and transcriptional regulation. Despite its conserved function, cohesin's disparate association patterns in different organisms did not quite add up. New research published in the open access journal Genome Biology works towards completing the cohesin puzzle, reconciling some of these differences. http://www.physorg.com/news161933677.html Biology Tue, 19 May 2009 06:35:19 EST news161933677 Crops and other plants are constantly confronted with adverse environmental conditions, lowering yield and costing farmers billions of dollars annually. Plants use specialized signals, called stress hormones, to sense difficult times and adapt to stressful conditions to enhance survival. http://www.physorg.com/news160319874.html Biology Thu, 30 Apr 2009 14:18:50 EST news160319874 The small flowering plant Arabidopsis is widely used in laboratories as a model organism in plant biology. http://www.physorg.com/news158594548.html Chemistry Fri, 10 Apr 2009 15:03:12 EST news158594548 That annoying kitchen pest, the fruit fly, occupies an honored place in science and medicine, despite slurs from politicians such as Sen. John McCain and his 2008 sidekick, Sarah Palin. http://www.physorg.com/news158155616.html Biology Sun, 05 Apr 2009 13:07:39 EST news158155616 Actin, a globular protein found in all eukaryotic cells, is a workhorse that varies remarkably little from baker's yeast to the human body. Part of the cytoskeleton, actin assembles into networks of filaments that give the cell structural plasticity while driving many essential functions, from cell motility and division, to vesicle and organelle transport within the cell. In a groundbreaking new study in the current issue of Developmental Cell, Brandeis researchers raise the curtain on how this actin maintains just the right filament length to keep the cell healthy and happily dividing. http://www.physorg.com/news154196674.html Biology Wed, 18 Feb 2009 16:25:49 EST news154196674 The genetic variation within a species can be significant, but very little of that variation results in clear differences in morphology or other phenotypes. Much of the diversity remains hidden ‘under the surface` in buffered form. This has been revealed by research conducted by the University of Groningen, Wageningen University and Research Centre (both Netherlands) and the British research centre Rothamsted Research. The research was published on 25 January 2009 in Nature Genetics. http://www.physorg.com/news152201024.html Medicine & Health Mon, 26 Jan 2009 14:04:19 EST news152201024 Texas A&M University researchers have developed a computational tool that will help scientists more accurately study complex units of clustered genes, called operons, in bacteria. http://www.physorg.com/news134234051.html Biology Wed, 02 Jul 2008 16:14:11 EST news134234051