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Biochemistry & Biophysics
Leaky Genes Put Evolution on the Fast Track, Researchers Find PDF Print E-mail
Friday, 17 June 2011 01:10
Small genetic mutations that add up over time could create an evolutionary express lane that leads to the rapid development of new traits, researchers from the University of Pittsburgh and the University of Wisconsin at Madison have found.
First Wood-Digesting Enzyme Found in Bacteria Could Boost Biofuel Production PDF Print E-mail
Wednesday, 15 June 2011 02:16
Researchers funded by the Biotechnology and Biological Sciences Research Council (BBSRC)-led Integrated Biorefining Research and Technology (IBTI) Club have identified an enzyme in bacteria which could be used to make biofuel production more efficient.
Researchers Discover Sonic Hedgehog Protein’s Mechanism of Action PDF Print E-mail
Wednesday, 15 June 2011 00:11
A scientific breakthrough by researchers at the Institut de recherches cliniques de Montréal (IRCM) has been published in Developmental Cell, a scientific journal of the Cell Press group. Led by Dr. Frédéric Charron, the team of scientists discovered a new requirement for the proper functioning of the Sonic Hedgehog protein.
Walking Microdroplets Collect Viruses and Bacteria PDF Print E-mail
Monday, 13 June 2011 01:31
A barely visible, electric field-controlled droplet moves on an appropriately prepared surface, harvesting viruses, bacteria and protein molecules deposited on it. This is how a novel method of collecting bioparticles looks like in real life.
Tuning 'Metasurface' With Fluid in New Concept for Sensing and Chemistry PDF Print E-mail
Friday, 10 June 2011 01:25
Like an opera singer hitting a note that shatters a glass, a signal at a particular resonant frequency can concentrate energy in a material and change its properties. And as with 18th century "musical glasses," adding a little water can change the critical pitch.
Scientists Create Humanized Mouse Model for Hepatitis C PDF Print E-mail
Friday, 10 June 2011 00:15
Scientists at Rockefeller University and The Scripps Research Institute have developed the first genetically humanized mouse model for hepatitis C, an achievement that will enable researchers to test molecules that block entry of the hepatitis C virus into cells as well as potential vaccine candidates.
Gene Therapy Reverses Type 1 Diabetes in Mice, Study Finds PDF Print E-mail
Tuesday, 07 June 2011 01:37
An experimental cure for Type 1 diabetes has a nearly 80 percent success rate in curing diabetic mice. The results, being presented at The Endocrine Society's 93rd Annual Meeting in Boston, offer possible hope of curing a disease that affects 3 million Americans.
Deadly Bacteria May Mimic Human Proteins to Evolve Antibiotic Resistance PDF Print E-mail
Friday, 03 June 2011 01:49
Deadly bacteria may be evolving antibiotic resistance by mimicking human proteins, according to a new study by the Translational Genomics Research Institute (TGen).
Link Between Environment and Genetics in Triggering Multiple Sclerosis: Discovery Points to Personalized Treatments PDF Print E-mail
Friday, 03 June 2011 00:47
Environmental and inherited risk factors associated with multiple sclerosis -- previously poorly understood and not known to be connected -- converge to alter a critical cellular function linked to the chronic neurologic disease, researchers with the UC Irvine Multiple Sclerosis Research Center have discovered.
New Delhi Metallo-Beta-Lactamase-1 Enzyme Acquired in Canada PDF Print E-mail
Wednesday, 01 June 2011 01:05
An enzyme associated with extensive antibiotic resistance called New Delhi metallo-ß-lactamase-1 (NDM-1), endemic in India and Pakistan and spreading worldwide, has been found in two people in the Toronto area, one of whom acquired it in Canada, states a case report in CMAJ (Canadian Medical Association Journal).
Scientists Override Errant Form of Genetic Signaling for First Time: Changing Genetic 'Red Light' to Green Holds Promise for Treating Disease PDF Print E-mail
Friday, 17 June 2011 01:06
In a new study published June 15 in the journal Nature, scientists discovered an entirely new way to change the genetic code. The findings, though early, are significant because they may ultimately help researchers alter the course of devastating genetic disorders, such as cystic fibrosis, muscular dystrophy and many forms of cancer.
Single GFP-Expressing Cell Is Basis of Living Laser Device PDF Print E-mail
Wednesday, 15 June 2011 01:14
It sounds like something out of a comic book or a science fiction movie -- a living laser -- but that is exactly what two investigators at the Wellman Center for Photomedicine at Massachusetts General Hospital have developed. In a report that will appear in the journal Nature Photonics and is receiving advance online release,
Photosynthesis Mechanics: Tapping Into Plants Is the Key to Combat Climate Change, Says Scientist PDF Print E-mail
Monday, 13 June 2011 01:32
Understanding the way plants use and store light to produce energy could be the key ingredient in the fight against climate change, a scientist at Queen Mary, University of London says.
New Imaging Technology Promising for Diagnosing Cardiovascular Disease, Diabetes PDF Print E-mail
Monday, 13 June 2011 01:29
Researchers have developed a new type of imaging technology to diagnose cardiovascular disease and other disorders by measuring ultrasound signals from molecules exposed to a fast-pulsing laser.
Historic First Images of Rod Photoreceptors in the Living Human Eye PDF Print E-mail
Friday, 10 June 2011 00:24
Scientists have just reported that the tiny light-sensing cells known as rods have been clearly and directly imaged in the living eye for the first time. Using adaptive optics (AO), the same technology astronomers use to study distant stars and galaxies, scientists can see through the murky distortion of the outer eye, revealing the eye's cellular structure with unprecedented detail.
BPA Lowers Male Fertility, Mouse Study Finds PDF Print E-mail
Wednesday, 08 June 2011 02:40
Daily exposure to a chemical that is prevalent in the human environment, bisphenol A (BPA), causes lowered fertility in male mice, according to the results of a new study that being presented at The Endocrine Society's 93rd Annual Meeting in Boston.
Blood Clotting and Bowel Cancer Risk PDF Print E-mail
Tuesday, 07 June 2011 00:35
Back in the mid 19th century, a French doctor, Armand Trousseau, discovered a connection between cancer and thrombosis -- the formation of often dangerous blood clots that can lead to venous occlusion.
Cells Do Talk to One Another, but the Question Remains How PDF Print E-mail
Friday, 03 June 2011 00:53
Inside the human body, an amazing amount of communication occurs constantly. But the dialogue is rather extraordinary. The orators are actually multiple cell types that make up the human tissues. And for biologists, the fundamental question remains as to how these processes occur within the complex environment of tissues and organs.
What Is a Laboratory Mouse? PDF Print E-mail
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Wednesday, 01 June 2011 01:06
Mice and humans share about 95 percent of their genes, and mice are recognized around the world as the leading experimental model for studying human biology and disease. But, says Jackson Laboratory Professor Gary Churchill, Ph.D., researchers can learn even more "now that we really know what a laboratory mouse is, genetically speaking."
New Mouse Model May Lead to New Therapies for Degenerative Diseases PDF Print E-mail
Wednesday, 01 June 2011 01:03
Most degenerative diseases begin with a gradual loss of specific cell types that progresses, eventually leading to symptoms. For example, in type I diabetes, hyperglycemia commonly develops when approximately 80 percent of the beta cells in the pancreas are lost; in Parkinson's disease, motor dysfunction typically begins when neurons in a certain portion of the brain are decreased by 70 to 80 percent.
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