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Tag: "two" at biology news

Simple drug has the potential to save many lives threatened by malaria

...s and 5 years with severe malaria. They found the two treatments broadly comparable and suggest that rectal artemether could be used to treat severe malaria where qualified staff and equipment for intravenous therapy is not available. These are encouraging results, say experts in an accompanying editor...

Tiny scaffolding allows stem cells to become working fat cells

...transformation into bona fide fat cells took about two weeks to complete. At that point, the cells were able to absorb lipids a hallmark task of fat cells. Researchers were able to extract RNA from the cells, just as they can from naturally occurring fat cells, and from that proved that the cells expres...

Plants defy Mendel's inheritance laws, may prompt textbook changes

...nd that Arabidopsis in which each parent plant had two copies of a mutant gene could produce progeny that.... "If you take this mutant Arabidopsis, which has two copies of the altered gene, let it seed and then plant the seeds, 90 percent of the offspring will l...

UCSD discovery may help extend life of natural pesticide

...ents for parasitic infections that affect close to two billion people worldwide. "Our previous findings with the roundworm C. elegans strongly suggested that specific sugar structures are likely critical for Bt toxin susceptibility," said Joel Griffitts, the first author on the paper and a former gradua...

Scientists identify new model Of NK cell development

... Caligiuri's laboratory, scientists had identified two distinct subsets of human NK cells (referred to as... cells to grow and differentiate, they need one of two cytokines, interleukin-2 or interleukin-15," says Freud. "So it may not be coincidental that two typ...

New RNA polymerase discovered in plants

...nit' He and his colleagues looked specifically at two polypeptides that would be the key subunits if the...nocotyledon and Arabidopsis a dicotyledon. "These two plants diverged 200 million years ago, and there is some speculation that this form of polymerase mi...

Research Using Mouse Models Reveals A Novel Key Player In The Initiation Of Colon Cancer

...c approaches that affect the signaling between the two cell layers. ...

NJIT Presidential Award winner takes stem cell research another step

...rate damaged tissue. Her research has also led to two major stem-cell discoveries: One showing that stem cells, when mixed with biomaterials known as scaffolds, can help regenerate bone growth; and another proving that stem cells taken from one person can be successfully implanted into another. A list o...

Bird Brains Show How Trial and Error May Contribute to Learning

...and the natural neural activity of LMAN during the two types of male finch song, the performance-quality ...her colleagues still found differences between the two types of songs, but the solo song lost its subtle variations. "In a nutshell, our paper suggests th...

Agilent Technologies releases automated literature search tool for biology researchers

...ing the plug-in as part of its collaborations with two other organizations on systems biology projects: the Stanford University School of Medicine on auto-immune diabetes; and the Translational Genomics Research Institute (TGen) on melanoma, autism and pancreatic cancer. Labs researchers are focusing on ...

Breakthrough method in nanoparticle synthesis paves the way for new pharmaceutical and biomedical applications

...ameter ( IBN’s simple wet-chemical technique uses two different types of surfactant (a soluble chemical compound that reduces the surface tension between liquids). One surfactant acts as the template for mesoporous structure, while the other is used to limit the growth of the particles to nanometer dime...

RNA project to create language for scientists worldwide

...tein genes, it has now been discovered in the past two years that so do mice. "The hardware (proteins) for mice and humans is practically the same–but clearly mice and humans are different. Since the hardware is the same, the difference between mice and humans must be at the software level--which determ...

Falling ants glide back to trunk to avoid dangers of forest floor

...nting five separate genera. It is the norm in only two groups, however: the Cephalotini tribe, which includes Cephalotes atratus, and the arboreal Pseudomyrmecinae ants. "It turns out that every species in the genus Cephalotes that I've dropped so far shows this gliding behavior, and they are by far the...

Unexpressed But Indispensable -- The DNA Sequences That Control Development

...fferfish. Since the last common ancestor of these two species existed 450 million years ago, the authors...a green fluorescent protein (GFP) reporter. By day two of development, 23 out of 25 CNEs injected had upregulated GFP expression, indicating interaction of...

Scientists discover that host cell lipids facilitate bacterial movement

... and to spread from cell to cell." In most cells, two membrane lipids, PIP2 and PIP3, are associated with the formation of new actin filaments. PIP3 is synthesized from PIP2 by an enzyme called PI3-kinase. The lipids attract and modify the functions of proteins involved in regulating actin assembly. PIP...

UF Researchers Map Bacterial Proteins That Cause Tooth Loss

...own proteins, said Fletcher. “This study has done two things to advance that,?Lamont said. “We’ve identi...n in a neutral medium. Bacterial proteins from the two conditions were separated using a new technique called Multidimensional Protein Identification Techn...

New Treatment Rivals Chemotherapy For Lymphoma, Study Finds

...diation disappears from the patient's body. One to two weeks after that initial dose, the patient then receives a custom-tailored therapeutic dose, and therapy is considered complete. The most common side effect is a temporary lowering of blood counts several weeks after the treatment. There is no hair l...

World's largest rainforest drying experiment completes first phase

... plot, from which rainfall was not excluded. These two forest plots were compared for a year prior to ins...e questions that will be explored during the final two years of this experiment. Collaborating organizations in this effort include IPAM (Instituto de Pes...

Family trees of ancient bacteria reveal evolutionary moves

...in the fossil record. Cyanobacteria emerging some two billion years ago were becoming complex microbes that had larger cell diameters than earlier groups ?at least 2.5 microns. Blank's tree shows that several morphological traits arose independently in multiple lines, among them a sheath structure, fila...

Gene therapy for Parkinson's disease moves forward in animals

...tional team of scientists has used gene therapy in two separate studies to renew brain cells and restore normal movements in monkeys and rats with a drug-induced form of Parkinson's disease. The research, detailed online in the scientific publications Brain and The Journal of Neuroscience, essentially d...

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