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Tag: "indirect" at biology news

New human retrovirus originated in mice

...ic oncogenic virus." Nevertheless, said Ganem, an indirect link to cancer cannot be ruled out, since "in cancer research these days, there is a lot of interest in the stroma as the soil in which cancer arises." He added that the chronic inflammation from infection of stromal tissues may play a role in trigge...

Five surprising facts about starvation that could change the international agenda

...from the direct effects of the disease and from an indirect impact on household food security and childcare. Without dual action against wasting and HIV/AIDS, the deadly synergy of these two factors is likely to grow in coming years." Fourth, political and economic growth do not always automatically improve...

Possible birthplace of malignant brain tumors identified

...ike a key inserting into a lock. There had been indirect evidence that neural stem cells give rise to brain tumors. "However, it has not been shown in vivo that tumor stem cells are derived from normal stem cells or that a specific population of cells with demonstrated stem cell properties is capable of in...

New GI technologies improve internal organ visualization

...for patients as an alternative to the much longer, indirect route through the femoralis artery in the groin or to open surgery," said Annette Fritscher-Ravens, M.D., of the Homerton University Hospital and lead study author. "This may be of specific interest for patients who have damaged heart muscle after a ...

Cells use mix-and-match approach to tailor regulation of genes

...hey relied on a total of eight types of direct and indirect evidence to create a model. That model predicts 980 as-yet-undiscovered transcription factor-gene binding interactions. "This 'systems biology' approach, using so many different lines of evidence, has given us a much more revealing and detailed pict...

Harmful Algal Blooms monitored from space in Chile

...orth nearly 1 billion Euros a year with direct and indirect benefits for employment and other industries. The aquaculture industry in Chile and internationally has expressed great interest in the products and services developed under the CAP project. In particular, the HAB early warning service has been teste...

Salk scientists untangle steroid hormone signaling in plants

.... Often evidence in favor of a particular model is indirect and could support multiple models. Describing the components of the signaling cascade that relays brassinolide's message into a cell's nucleus, postdoctoral researcher and lead author of the study Grégory Vert, now at the Centre national de la recher...

Ozone recovering, but unlikely to stabilize at pre-1980 levels, says study

.... Often evidence in favor of a particular model is indirect and could support multiple models. Describing the components of the signaling cascade that relays brassinolide's message into a cell's nucleus, postdoctoral researcher and lead author of the study Grégory Vert, now at the Centre national de la recher...

AIDS study challenges conventional treatment guidelines for HIV patients

...plex scenarios of disease progression, and hint at indirect processes though which HIV can induce damage to the immune system, which cannot be adequately captured by measuring HIV levels in the blood....

Cougar predation key to ecosystem health

...azing animals such as deer and elk ?they also have indirect effects in changing their foraging behavior, in what has been called "the ecology of fear." That phenomenon, the scientists say, has been shown as vividly in Zion National Park as any other location they have ever studied. In Zion Can...

Diabetes slows nerve recovery after heart transplant

... neurotransmitters released to the blood, offering indirect conclusions about the presence, storage and release of neurotransmitters from neurons. These methods require complicated and laborious sampling of blood from coronary arteries and veins," he added. Diabetes mellitus is a chronic disease that occurs...

Researchers seek to design first treatment for neuroAIDS

...ease in the brain. The emerging answer is that the indirect effects of infection, like proteins released by the virus and chemicals released by human cells reacting to them, are toxic in themselves. As a result, labs nationwide are urgently searching for compounds that counter such toxins, with several now i...

Nobel Laureate finds 'elegant' explanation for DNA transcribing enzyme's high fidelity

...rmed the trigger loop, which makes both direct and indirect contact with all features of the nucleotide in the polymerase active center,?the researchers concluded. ...

E. coli bacteria migrating between humans, chimps in Ugandan park

...e exchange of bacteria was the result of direct or indirect (environmental) association between the chimps and humans working in the park. Both make use of local streams and other environmental features. Regardless of the route of transmission, it places both at risk, Goldberg said. "We’re as concerned...

Study calculates patient time costs associated with cancer care

...tes could be combined with estimates of direct and indirect costs to better understand the overall burden of cancer in the United States, the authors write. "What we see here is a measure of the patient's burden of commitment--measured in dollars--associated with receiving today's cancer therapy," write Lar...

A frown or a smile? Children with autism can't discern

...her they were looking at faces with a direct or an indirect gaze. “This part of the brain helps us discern the meaning and significance of what another person is thinking,?Davies said. “When responding to someone looking straight at you, as compared to someone who’s looking away, the brain discerns a diff...

CU study reveals why starling females cheat

...and gain both direct (like additional helpers) and indirect benefits (like better genes for the offspring), but that they do so in different contexts," said Dustin Rubenstein, a former Cornell graduate student in neurobiology and behavior and now a research associate at the Cornell Laboratory of Ornithology a...

Potato wart eyed as risk to potato production

...ato wart may be insignificant when first detected, indirect economic losses resulting from zero-tolerance regulations for potato wart can be devastating to growers. Indirect economic losses become especially evident in potato production areas that are subject to quarantine measures, as well as when the moveme...

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