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Tag: "manipulation" at biology news

Research identifies protein that signals flowering in squash plants

...e they represent the ideal system for experimental manipulation to investigate this phenomenon. Principal investigator William J. Lucas explained, “it is important for these experiments to use a plant that is 100% inducible; in other words it absolutely will not flower unless it is induced. Then, with carefully d...

In mice, drug protects against diabetes and atherosclerosis

...al in hand and to replicate the effects of genetic manipulation is a huge milestone and an incredible source of excitement," said Hotamisligil, Professor of Genetics and Complex Diseases. "This drug is very effective in treating diabetes and heart disease in mice at the same time, and we believe it may turn out t...

Researchers demonstrate way to control tree height

...blets” among the flowers in the field site. The manipulation of height growth was achieved by insertion of certain genes, mostly taken from the model plant Arabidopsis, which inhibited the action of a class of plant-specific hormones known as gibberellic acids. These compounds are also used as sprays to contro...

'Smart' mice teach scientists about learning process, brain disorders

...that might create the same effects without genetic manipulation and monitoring the animals’ health and behavior over time. The findings may have applications in treating post-traumatic stress disorder, where getting a patient to learn that a once-threatening situation no longer poses a danger is a major goal....

Novel system developed to turn data into real-time, interactive 3-D images

...loat in midair." The technology will allow for manipulation of the volume-rendered object in real-time, giving... and in its entirety, and allows for user-friendly manipulation of the data for evaluation and analysis. Gregory Wilson, associate vice president for economic de...

New success in engineering plant oils

Using genetic manipulation to modify the activity of a plant enzyme, research...chemicals. Shanklin also suggests that the genetic manipulation could work in the reverse to allow scientists to engineer more heart-healthy food oils. "Scientis...

Enhancing activity of marijuana-like chemicals in brain helps treat

... important difference, and it is why we think our manipulation of the chemicals is really different from smoking marijuana." The researchers began their study by focusing on a region of the brain known as the striatum. They were interested in that region because it has been implicated in a range of brain d...

Mechanisms involved with tumor relapse identified

...ht a number of cancers. Immunotherapy involves the manipulation of the immune system ?by introducing an antibody or lymphocytes, or immunization with a tumor vaccine ?to recognize and eradicate tumor cells. Using a transgenic mouse model of breast cancer, researchers found that interferon gamma, a cytokine or...

Designer babies - what would you do for a 'healthy' baby?

... meaning of 'healthy' and confusion about when the manipulation of children's physical, psychological or social characteristics is legitimate, natural or ethical." We are often presented with information and speculation about what reproductive technologies might achieve in the future and with various ethical di...

Report calls for improved monoclonal antibodies against solid tumors

...ed at solid tumor targets. The researchers suggest manipulation of the physical properties of a monoclonal antibody as a potentially effective way to improve antibody treatments for solid tumors. Monoclonal antibodies?ability to target a single specific protein on cancer cells, has led to their being called a “...

Technology for monitoring fetal oxygen during labor offers no apparent benefit

...ical cord when inserting the sensor, or because of manipulation of the baby's head. "In this study of more than 5000 women delivering at 14 university hospitals throughout the United States, knowledge of intrapartum fetal oxygen saturation had no significant effect on the rates of Caesarean delivery overall or...

Zinc plays important role in brain circuitry

... affect the neuronal action of zinc, but that such manipulation "highlights the complexity of potential therapeutic interventions," which could cause an imbalance between the excitatory and inhibitory circuitry in the central nervous system. In a preview of the paper in the same issue of Neuron, Alan R. Kay, ...

P(acman) takes a bite out of deciphering Drosophila DNA

...of DNA in bacteria, recombineering that allows the manipulation of large pieces of DNA that can then be inserted into the genome of the fly at a specific site using phiC31-mediated transgenesis. It is a new technique with far-reaching promise, said Bellen. P(acman) overcomes certain obstacles that have hamp...

Stem cell expansion

...ing the potential problems associated with genetic manipulation of the cells. As the reviewers of the article commented, such "clean expansion" of HSCs holds great potential for application in human transplant recipients. ...

Bacteria could make new library of cancer drugs that are too complex to create artificially

...s that act at particular steps of that process. By manipulation of the enzyme content of the bacteria, they aim to produce a range of different compounds based closely on the form of streptorubin B normally formed by the bacteria. Some of these analogues of streptorubin B could provide the basis for developing us...

Surprise finding for stretched DNA

...ty on the use of single-molecule visualization and manipulation techniques to study the dynamics, structure and kinetics of molecular motors and nucleo-protein assemblies. He holds joint appointments with Berkeley Lab's Physical Biosciences Division and UC Berkeley's Departments of Molecular & Cell Biology, P...

Study identifies new role for breast cancer susceptibility gene

...er initiation, mutation of BRCA1 is also linked to manipulation of the tumor microenvironment. The research appears in the July issue of Cancer Cell, published by Cell Press. Mutations in the breast cancer susceptibility gene BRCA1 account for up to 50% of hereditary breast cancers. BRCA1 is known to serve as a...

Viral hitchhiker inhibits Wolbachia bacteria's ability to proliferate

...ause cytoplasmic incompatibility, the reproductive manipulation of its insect host. Until now, scientists believed the virus was somehow inducing this process. But viruses pirate cells to reproduce, often killing the cells as a result. So Bordenstein and his colleagues hypothesized that by preying on Wolbachi...

Nutrition a major factor in rise in twin pregnancies

... culture conditions and that it started before any manipulation of the zona ?the 'shell' of the egg ?began. Transfer of just one embryo can therefore still lead to twins. If a higher rate of MZ twinning turns out to be a natural adaptation to improved nutrition or culture conditions, it could prove difficult ...

Rice scientists unveil 'nanoegg'

...eater and greater sophistication in the design and manipulation of light-active nanostructures," said LANP Director Naomi Halas, the Stanley C. Moore Professor of Electrical and Computer Engineering and professor of chemistry. "The addition of nanoeggs and, earlier this year, nanorice to LANP's family of optical ...

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