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Tag: "appropriate" at biology news

Yellowstone microbes fueled by hydrogen, according to U. of Colorado study

...seasons. All of theenvironments had concentrations appropriate for energy metabolism.The team used computer-generated thermodynamic models to find out ifhydrogen was indeed the principle source of energy. "You can smellsulfide in the air at Yellowstone, and the accepted idea was thatsulfur was the energy source ...

Transplantation Of Monkey Embryonic Stem Cells Reverses Parkinson Disease In Primates

...nd ethicaldifficulties in obtaining sufficient and appropriate donor fetal braintissue have limited the application of this therapy.These researchers previously demonstrated that mouse embryonic stemcells can differentiate into neurons when cultured under specificconditions. These same culture conditions, techni...

Imaging Lymph Nodes with Nanoparticles

...ediction of prognosis and determinationof the most appropriate treatment. And an essential part of this workup is assessing whether or not there has been lymphatic spread. Currentmethods include surgical removal of nodes for examination and varioustypes of imaging, ranging from ultrasound to newer technologies s...

Iron Deficiency Sparks Dramatic Changes In Gene Expression

...ould translate theseverity of the disease into the appropriate treatment....

Gene variations explain drug dose required to control seizures

... and error to find the dose of anti-epilepsy drugs appropriate for them. The researchers found that variants of ...ive safety for a particular treatment. Similarly, appropriate doses of carbamazepine take time to determine because of the drug's variable affects on patient meta...

Needling Chromosomes Reveals Cell Division Secret

...romatidsadhered to one another and released at the appropriate time during celldivision. However, that understand...er chromatids in cultured grasshopper cells at the appropriate timein cell division. Then, she would ever-so-gently apply force to pullthem apart. Upon release, if...

Open microfluidic and nanofluidic systems

... chip. An essential prerequisite for such labs are appropriate microcompartments for the confinement of very smal...bvious prerequisite for such miniaturized labs are appropriate microcompartments for the confinement of very small amounts of liquids and chemical reagents. Like t...

First real-time view of developing neurons reveals surprises, say Stanford researchers

...cord injuries will require new neurons to form the appropriate connections. ...

Estrogen-like Component of Plastic Stimulates Growth of Certain Prostate Cancer Cells

...culture in response to BPA are ready to bemoved to appropriate animal models next,?said Dr. Knudsen. The effectof the environmental non-steroidal BPA on human prostate cancer tumorimplants in laboratory animal models will shed additional light onwhether the synthetic pseudo-estrogen encourages tumor growth in wh...

Yale researchers identify molecule for detecting parasitic infection in humans

...the recognition of this parasite is crucial for an appropriate immune response. However, it was unclear which of the 13 different TLRs present in mammals was responsible and which molecule of T. gondii was being recognized by the TLRs. "In this study we found that the recognition of T. gondii by the innate immu...

Institute for Systems Biology Symposium Addresses Need for Better Computational Tools

... proteins. These functions can then be assigned to appropriate networks. Researchers expect that approximately 2/3 of the folded proteins will result in correct topologies and that approximately 1/3 of the predicted structures will match previous folds now stored in the protein data bank/PDB. Folded proteins ex...

Anti cancer virotherapy well tolerated in first human administration, research finds

...ells through the introduction into the body of the appropriate viral material which then reproduces at a rapid rate over a short period of time, devouring the cancer cells in the process by attaching to the cells' ICAM-1 (intercellular adhesion molecule-1) and DAF (decay accelerating factor). This CVA21 technol...

Chemicals in tattoo inks need closer scrutiny

... artist license to inject whatever he or she deems appropriate under the skin, according to the researchers. "Tattoos are no longer limited to the rough and rowdy," says Haley Finley-Jones, an undergraduate chemistry student and lead author of the study. "With the growing popularity of tattoos among young peopl...

FDA Announces Series of Changes to the Class of Marketed Non-Steroidal Anti-Inflammatory Drugs (NSAIDs)

...available scientific data to guide the careful and appropriate use of these drugs aimed at maximizing their potential benefits and minimizing their risks." FDA has asked Pfizer, Inc. to withdraw Bextra (valdecoxib) from the market because the overall risk versus benefit profile for the drug is unfavorable. FDA ...

Technique may allow cancer patients to freeze eggs, preserving fertility before starting treatment

...ions for some women. Researchers question if it is appropriate for women with cancers fueled by estrogen, such as breast cancer. In addition, the hormone treatments require delaying the start of cancer therapy, which may not be an option for every patient. Guidelines for patients and physicians still need to be...

Different microarray systems more alike than previously thought

...sick-Nathans Institute of Genetic Medicine. "Given appropriate and careful analysis, it should be possible to compare historical data to future experiments, even if the technology changes or people make different choices in their platform." When the study began roughly two years ago, microarray platforms were a...

Cerebral navigation: How do nerve fibers know what direction to grow in?

...ent requires billions of neurons to migrate to the appropriate locations in the brain and grow nerve fibers (axons) that connect to other nerve cells in an intricate network. Growth cones, structures in the tips of growing axons, are responsible for steering axons in the right direction, guided by a complex set ...

A puzzle piece found in unraveling the wiring of the brain

...med sec15 that is required for nerve cells to make appropriate choices of targets on which to act. The Sec15 protein is part of a protein complex (the exocyst) which is known to be required for secretion (or exocytosis) of vesicular compartments in yeast. Vesicular compartments are small organelles that transpo...

Study reveals candidate targets for anti-retroviral therapeutics

...l source of such novel targets, but relatively few appropriate target genes have been identified in animal cells thus far. A new study, conducted by Dr. Suzanne Sandmeyer and colleagues at the University of California, reports the discovery of over 100 host genes that affect the replication of a model retrovirus...

Scientists generate patient-specific stem cells, Science study says

...stics of the disease, so they will probably not be appropriate for direct use in treating patients. In addition, researchers must develop methods to efficiently direct the differentiation of embryonic stem cells to specific stable cell types. Scientists must also find a way to remove the remaining animal compone...

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