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Tag: "stages" at biology news

Colour sensor breath test can detect lung cancer

...e 49 people with small cell lung cancer at various stages of development. The research team used the sens...pensive. As cancer is often silent in its early stages and symptoms are often not specific, it is often difficult to pick up the disease at a stage when it...

Research project tackles 'regeneration' gap

... like grow an arm or finger as we did in the early stages of our development. We want to learn how to turn those systems back on in people." Recently, studies have shown humans possess some of the same genes and communication pathways used by some of nature’s most remarkably regenerative animals. Alr...

Prion disease treatable if caught early

...chanisms of neurotoxicity and therapies to earlier stages of disease, when rescue is still possible. "Eventually it may also enable preclinical testing of therapeutic strategies through cognitive endpoints. These data now lead to the hope that early intervention in human prion disease will not only halt ...

ASU researchers test antibacterial effects of healing clays

...cs can only make a difference at the very earliest stages of the disease, so treatments have, in the past, been largely confined to amputations or surgical excision of the infected sites." This means if the clays are antibacterial in nature and the locus for that activity can be isolated, they may repres...

Why don't all moles progress to melanoma?

... a connection between ER stress and the very early stages of tumor initiation." Results of the U-M study ?involving melanocytes from normal human skin and biopsies of non-malignant human moles ?are being published in the October issue of Nature Cell Biology. The endoplasmic reticulum is the cell's prote...

The effects of smoking on fractures and ligament injuries

...ed fracture healing and that it began at the early stages of the healing process, although over time it did not inhibit normal healing. Specifically, they were able to show that there was a delay in the development of mature cartilage cells in the mice exposed to cigarette smoke. This was the first study to...

Lost in the labyrinth

... Usually, most cells undergo numerous transitional stages on their way from stem cells to fully-developed types in the blood. Several types of blood cells vanished entirely; the same thing happened to more basic cell types higher up in the blood lineage hierarchy. Particular kinds of stem cells disappeared ...

Discovery of the first resistance gene to rice yellow mottle virus

...with the virus which is then blocked in one of the stages of its infectious cycle. In parallel, a team of IRD virologists showed that it was possible to carry out laboratory selection of RYMV strains that break the gene's resistance and that the process involved was determined by mutations in one of the ...

Vaccination with embryonic stem cells prevents lung cancer in mice

...er, he warned that the work was still in its early stages and that people should not think that, for instance, they could start, or carry on, smoking because a vaccine to prevent lung cancer was just around the corner. "Cancer has been prevented and even cured in mice hundreds of times. At present, all I...

New drug blocks influenza, including bird flu virus

... highly effective in treating animals in the early stages of infection. Untreated infected animals typically died within a week. All of the infected animals treated with small doses of the drug at the onset of symptoms survived. "Pretreatment with (the peptide) provided 100 percent protection against nume...

PET imaging shows young smokers quick benefit of quitting

The early stages of coronary artery disease in young smokers can be...his study provided a noninvasive look at the early stages of coronary artery disease in smokers and the recovery time of coronary endothelial dysfunction afte...

Novel pathway regulates timing of brain cell development

...inhibits production of astrocytes during the early stages of brain development, thereby favoring the product...d erbB4 signaling could be implicated in the early stages of Alzheimer's disease," Corfas says. "Further studies of erbB4 nuclear signaling could provide impo...

Nature's process for nitrogen fixation caught in action

...another substance. "Such reactions involve several stages in the reduction pathway," Dean said. "Nitrogenase...ularly complex because there are many intermediate stages between nitrogen gas (N2) and ammonia (NH3) that require adding electrons and protons." In order ...

T-beta-RIII joins the fight against breast cancer

...to suppress the growth of tumor cells in the early stages of breast cancer, high levels of TGF-beta during the later stages of the disease are associated with a poor outcome. A study using human breast cancer samples and mic...

A new approach to growing heart muscle

...sed the BEHM's structure and function at different stages in its development. First author and postdoctoral fellow Yen-Chih Huang, Ph.D., of the U-M Division of Biomedical Engineering, led the creation of the modeling system. Co-author and research associate Luda Khait examined the tissue using special stai...

Fast test for low blood flow in dogs detects early heart trouble

...ercise stress test, they may still be in the early stages of atherosclerosis, when vessels start to clog, narrow and harden, gradually straining circulation," he says. The main drawback to the Hopkins test, George says, is that CT imaging, like PET, also exposes patients to radiation from X-rays, but PET t...

An advanced genetic diagnostic method for multiple myeloma

...enetic alterations rapidly and easily in the early stages of the disease, permitting its early diagnosis. In addition, he emphasized that these procedures will promote the description of molecular targets for future, more effective treatments of MM. These new techniques for genetic diagnosis of MM are alre...

Antibody extends life of mice with breast cancer

...antibody did not kill the cancer cells, it blocked stages of cancer-cell growth that allow the cells to adhere to organ tissue, the research showed. Results of the research appeared in the November 2006 issue of the journal Neoplasia. Mice with breast-cancer tumors that received the antibody had a med...

Developing uses for sugar-cane bagasse: Biotechnology applied to the paper industry

...aterial used, paper pulp has to undergo processing stages of delignification and bleaching to turn it into high-strength and durable paper. In some countries the chemical processing involved still entail the use of chlorine, dangerous for both health and the environment. Research scientists from the IRD a...

Air travel and flu: Post-9/11 restrictions delayed start of season

...estricting air travel might be useful in the early stages of a serious global epidemic. Research at the Children's Hospital Boston, now published in PLoS Medicine, has investigated the effects of air travel on the annual spread of flu in the US. The researchers analyzed government records on deaths from fl...

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