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Tag: "cell" at biology news

Investigating the measles virus as a tool to kill multiple myeloma

... cells and fusing them together, increasing cancer cell death. This study differs from the other two o...not have had allogeneic (from another person) stem cell transplants and must either have had a prior measles infection or been vaccinated against it. In...

Genetic fingerprints identify brain tumors' origins

Genetic fingerprints that reveal where a brain cell came from remain distinct even after the cell becomes a brain tumor, an international coalition of scientists will report in the February 1 issue ...

Cure for cancer one step closer

...cause everybody can play a part in the cure. Every cell contains a clue that can make a difference to tomorrow's cancer patients," he said. Queensland is well placed as a source of cancer tissue due to its diverse population, large number of aged retirees, and high-rate of some cancers, particularly me...

Scientists identify pancreatic cancer stem cells

...er stem cells without interfering with normal stem cell function." While such a drug has not been devel...organs that have mutated, or from a differentiated cell that has devolved to take on the qualities of stem cells. They are resistant to traditional therapy ...

Noise echoes in cell communications

... for important processes of sensory processing and cell to cell communication. In terms of hearing, the Rutgers-Camden research team's mathematical theory impro...

Heart failure: Intervention possibilities from imaging programmed cell loss

...echnique and molecular imaging to "see" programmed cell loss—the body's normal way of getting rid of unnee...ates that it is feasible to noninvasively identify cell loss—or apoptosis—in heart failure patients using annexin A5 imaging," explained Leo Hofstra, direct...

Sandia researchers take new approach to studying how cells respond to pathogens

...ne cells respond has been done by looking at large cell populations. The Sandia researchers say informatio...s may mask underlying mechanisms at the individual cell level. "Cells have different life cycles, just like any living being. And not all cells are expos...

Jefferson scientists find rabies-based vaccine could be effective against HIV

...parameters of infection, such as immune system CD4 cell count, amount of virus in the bloodstream and immune system antibody response. They found that those animals that were given the test vaccine could control the infection. The control animals without the experimental vaccine had high levels of virus a...

Scientists genetically engineer tomatoes with enhanced folate content

...nning a pregnancy or who are pregnant. Without it, cell division would not be possible because the nutrient plays an essential role in both the production of nucleotides--the building blocks of DNA--and many other essential metabolic processes. Deficiencies of the nutrient have been linked to birth def...

Gut research yields new anti-cancer approach

...es of PPARgamma inhibitor killed colorectal cancer cell lines. Despite the compound's class name, the anti...ins called tubulins, the building blocks of cancer cell skeletons," said Katherine L. Schaefer, Ph.D., a research assistant professor within the Department ...

A 'traffic light' for neurons means 'go' for improving brain research

...re describes a technique to directly control brain cell activity with light. It is a novel means for exper... the power to ask what the causal role of specific cell types is in neural circuit function." Knowing the effects that different neurons have could ultim...

Beyond the DNA: Chemical signatures reveal genetic switches in the genome

...ssed. "The human genome is packaged within each cell by chromatin, a structure composed of DNA wrapped around proteins called histones," explains lead author Nathaniel Heintzman, from LICR and the UCSD Biomedical Sciences Graduate Program. "We used genome-scale approaches to analyze the chromatin archi...

Row over study puts Korea's scientific community under scrutiny again

...ke of the recent scandal over Woo-Sok Hwang's stem cell research. Dr Kim claims a paper about premature...everely damaged reputation and credibility of stem cell and life science research in Korea after the Hwang scandal." Professor Kim's intervention leaves ...

Scientists identify molecular cause for one form of deafness

...tin Purdy and Northwestern University professor of cell and molecular biology James R. Bartles ?report their findings in a paper accepted for publication in the journal Physical Review Letters, and posted on its Web site. High-resolution X-ray diffraction experiments, performed by Purdy at the Advanced ...

Study shows isolation of stem cells may lead to a treatment for hearing loss

...lls, and we can think of developing strategies for cell replacement, i.e. transplanting these cochlear stem cells into the adult cochlea to affect hair cell replacement in the mouse, by extension, in humans?remarked Dr. Alagramam. In this paper, Drs. Mil...

Researchers design pulsed mircrojet system to deliver protein drugs without pain or bruising

...in, growth hormone and erythropoietin, a red blood cell booster. Needle-free delivery of vaccines has recently been identified as one of the significant emerging challenges in global health. The researchers felt that the pain and bruising caused by previously-developed jet injectors was caused by the ...

Changes in amino acids in the 1918 influenza virus cut transmission

...ruses. Hemaglutinin helps open the door to the cell to allow the virus to infect. The first step is in...lutinin to sialic acid containing molecules in the cell surface. There are two primary ways sialic acids are associated with molecules in the cell surface—o...

Despite their heft, many dinosaurs had surprisingly tiny genomes

...hummingbird. So say scientists who've linked bone cell and genome size among living species and then used...ad previously determined that the sizes of various cell types, across species, tend to reflect the size of an organism's genome. Analyzing 26 living species...

Gene found for rare disorder may reveal new pathway in mental retardation

...ntrolling the integrity of chromosome pairs during cell division. Recent research has unexpectedly showed that mutated genes along the cohesin pathway also cause specific abnormalities during human development. "In these cohesin complex proteins, the strongest effect seems to be in brain development," ...

Researchers identify gene involved in dog size

...in diseases such as cancer, in which regulation of cell growth has been lost,?said Ostrander, noting that the role of the IGF-1 gene family in prostate cancer susceptibility has already been well established. Building upon previous research showing that the IGF-1 gene plays an important role in growth,...

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