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Tag: "caps" at biology news

Adult stem cells from human cord umbilical cord blood successfully engineered to make insulin

...earchers announced their laboratory finding, which caps nearly four years of research, in the June 2007 issue of the medical journal Cell Proliferation, posted online this week. Their paper calls it "the first demonstration that human umbilical cord blood-derived stem cells can be engineered" to synthesiz...

Iowa State scientists demonstrate first use of nanotechnology to enter plant cells

...dies, his group successfully demonstrated that the caps can be chemically activated to pop open and release the cargo inside of animal cells. This unique feature provides total control for timing the delivery The team’s first attempt to use the porous silica nanoparticle to deliver DNA through the rig...

Short chromosomes put cancer cells in forced rest

...f white blood cells. Telomerase helps maintain the caps or ends of chromosomes called telomeres, which shrink each time a cell divides and eventually - when the chromosomes get too short - force the cell to essentially commit suicide. Such cell death is natural, and when it fails to happen, the result ma...

Osteoarthritis may be sign of faster 'biological ageing'

...l shortening of telomeres, the length of DNA which caps the tips of chromosomes. A host of factors make them shorten over time, including insufficient repair of the damage caused by oxygen free radicals (oxidative stress). Oxygen free radicals are the unstable molecules produced as a by-product of norma...

Aging cells, aging body: Fresh evidence for a connection

... structures signals that the protective chromosome caps called telomeres have dwindled enough to halt cell division. Scientists painstakingly counted the cells with aging biomarkers. What they found: The number of senescent cells increased exponentially with age. TIF-positive cells made up about 4 percen...

Rice bioengineers pioneer techniques for knee repair

...s ago that we would be making entire articular end caps via self assembly I would have said you were crazy," said Athanasiou. "The fact that we can do this is an indication of how far the discipline of tissue engineering has progressed." Unlike cartilage, most tissues in our bodies ?including skin, blood...

Cellular scale drug delivery from the inside out

... "capped" to safely seal the drug inside. Once the caps are in place, the nanospheres are "washed" to remo...w they're released is the focus of Lin's work. The caps can be dendrimers, biodegradable polymers, genes, proteins, metallic nanoparticles, or semiconductor...

Scientists map one of biology's critical light-sensing structures

...ing first author graduate student Jeremiah Wagner, caps a 30-year quest by biologists to drill down to the inner workings of how plants, fungi and bacteria use light to guide their development. It will likely spur a rush by scientists to capitalize on the new knowledge and may one day lead to such things...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

...suring impacts of climate change and, should polar caps continue receding, hypothetical new disturbances on the northern ocean such as energy exploitation, fishing and shipping. The research compares species distribution in the shelf, slope and deep sea regions (the deep sea is generally agreed to begin ...

Biochemists report discovery of structure of major piece of telomerase; implications for cancer

... on the ends of chromosomes that act as protective caps -- allowing DNA ends to be copied completely when cells are replicated. This is the first major piece of telomerase for which the structure is known. Telomerase plays a key role in most cancers, and this work ultimately may lead to targets for drug ...

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(Date:4/24/2014)... West Virginia University researchers are the first to sequence ... view of eagle features that could lead to more ... question long-held assumptions about golden eagle vision, indicating that ... light as previously thought. The genome also suggests that ... than researchers realized. , Additionally, the genome provides ...
(Date:4/24/2014)... NY, April 24, 2014D-ribose is a commercially important ... and as a starting compound for synthesizing riboflavin ... Escherichia coli to increase the bacteria,s ability ... achieving more efficient industrial-scale production of this valuable ... Industrial Biotechnology , a peer-reviewed journal from Mary ...
(Date:4/24/2014)... a simple and cheap way of making a high-powered ... high-resolution microscope. , Costing less than a cent, the ... developing countries and remote areas. , The lens fabrication ... Australian National University (ANU) Research School of Engineering, who ... of Medical Research to find ways to transform the ...
Breaking Biology News(10 mins):Genome yields insights into golden eagle vision, smell 2Droplet lens 2
(Date:4/24/2014)... TORONTO Baker,s yeast is giving scientists a better ... of hospitalization and illness world-wide. , When two ... one can suppress or enhance the effectiveness of the ... of another. These types of interactions are a major ... severe practical limits on the practical scope of drug ...
(Date:4/24/2014)... lenses coated with an antimicrobial peptide could help to lower ... Optometry and Vision Science , official journal ... journal is published by Lippincott Williams & Wilkins , ... in animals and now humans support the biocompatibility and safety ... the new research by Debarun Dutta, B.Optom, of The University ...
(Date:4/24/2014)... Center for BrainHealth will bring together national experts ... challenges at its inaugural Brain Health Summit, titled ... speakers will include Dr. Sandra Bond Chapman, founder ... U.S. Senator Chuck Grassley (R-IA), U.S. Representative Chaka ... for Policy and Early Learning, U.S. Department of ...
(Date:4/24/2014)... the corresponding terminology, and the relevance of palliation ... publications on randomized controlled trials (RCTs). This is ... Institute for Quality and Efficiency in Health Care ... report. , Together with external experts, IQWiG analysed ... lung cancer, malignant melanoma, and pancreatic cancer. For ...
(Date:4/24/2014)... than to receive at least if you,re an adolescent ... study found that 15- and 16-year-olds who find pleasure in ... are less likely to become depressed than those who get ... for themselves. , The researchers detail their findings in the ... The study focused on the ventral striatum, a brain region ...
Breaking Medicine News(10 mins):Health News:Large-scale identification and analysis of suppressive drug interactions 2Health News:Study supports safety of antimicrobial peptide-coated contact lenses 2Health News:Study supports safety of antimicrobial peptide-coated contact lenses 3Health News:Inaugural Brain Health Summit focuses on brain resilience and regeneration 2Health News:Palliation is rarely a topic in studies on advanced cancer 2Health News:Palliation is rarely a topic in studies on advanced cancer 3Health News:Study: Altruistic adolescents less likely to become depressed 2
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