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Tag: "effects" at biology news

Cancer researchers add spice to research against rare neuromuscular disease

...s that ASC-J9 must be rigorously screened for side effects and effectiveness, through clinical studies in people, before it can be considered as a possible treatment for any disease. "The compound we are studying has been significantly modified from the original ingredient found in food like curry or ging...

Researchers uncover protection mechanism of radiation-resistant bacterium

... to ways to protect cancer patients from the toxic effects of radiation therapy; and may prove significant in efforts to contain toxic runoff from radioactive Cold War waste sites. Fifty years ago, scientists discovered D. radiodurans, leading to speculation that the incredible degree of resistance exhibi...

Discovery of an HIV inhibitor in human blood points to new drug class

...they focused on one that blocked HIV without toxic effects on cells. Further examination revealed VIRIP as the active ingredient. A synthetic version of the peptide maintained its anti-HIV activity, excluding the possibility that some other factor was responsible. VIRIP specifically targets a conserved...

Lead with a poisonous electron shield

... into what, at a molecular level, causes the toxic effects of lead. French researchers have now applied quantum chemistry to very simple enzyme models and gained new insights. As they have reported in Angewandte Chemie, it seems that the lead's "electron shield" is the main culprit. Lead does the most damag...

Gene chips forecast ecological impacts of climate change

...e main focus will be on finding ways to assess the effects of temperature stress and low pH, due to ocean acidification, on adults and early developmental stages of marine invertebrates. Coastal marine ecosystems, from the intertidal zone to the continental shelves, are particularly vulnerable to global ...

New bird, bat species revealed by extensive DNA barcode studies

... National Laboratory in 1953, where he studied the effects of radiation on insects, and described the mechanisms by which control of insect pests by X-irradiation is achieved. From there, he accepted a position as chair of the University of Alberta’s Genetics Department. While there, he received NSERC gra...

Parasite infection may benefit MS patients

...er to identify which molecules cause immune system effects that dampen the inflammatory reactions normally seen in autoimmune diseases, the authors note. They conclude that "induction of a regulatory anti-inflammatory network generated by persistent parasite infections may offer a potential explanation for e...

Cancer that colonizes our bodies

... National Laboratory in 1953, where he studied the effects of radiation on insects, and described the mechanisms by which control of insect pests by X-irradiation is achieved. From there, he accepted a position as chair of the University of Alberta’s Genetics Department. While there, he received NSERC gra...

Health Canada approves cold and flu medicine

...d the safety profile of COLD-fX with no known side effects or drug interactions for generally healthy individuals. Health Canada established new regulations effective Jan. 1, 2004, to monitor and manage the NHP industry. CV Technologies was the first company in Canada to launch and complete a trial under ...

Scientists unlock mystery of embryonic stem cell signaling pathway

...hway. The Wnt pathway is known to have dichotomous effects on stem cells i.e. both proliferative and differen...s you want,?Kahn says. The studies of IQ-1 and its effects reported in the newly published PNAS paper were performed at the University of Washington in Seattle...

RNAi shows promise in gene therapy, Stanford researcher says

...but also showed a possible way around those toxic effects by selecting particular RNA sequences. "One benefit of RNAi gene therapy is that it uses the body's own machinery, making it an effective approach," Kay said at the time. "However, the detriment of RNAi gene therapy turns out to be that it use...

Statin plus cancer drug deliver combo punch to brain cancer cells

...destruct through a process called apoptosis. The effects of the statin already is being studied in people a...those that do survive can suffer debilitating side effects caused by current toxic therapies." ...

Living with water scarcity -- world must act now

...o 9%. But, further complicating the situation are effects of climate change, and the increased use of biofuels, and the necessary actions to address these. "The bottom line is that water scarcity is with us to stay, and we have to learn to live with it. This will require making some hard choices now ins...

How to manage forests in hurricane impact zones

...A, report the results of a case study based on the effects of Hurricanes Katrina and Rita. The past 10 hurri...ys Stanturf. "Additional research is needed on the effects on vulnerability of fragmentation, harvest systems, and other aspects of stand structure."...

Mother knows best: Plant knowledge key to childhood health in remote Amazon

...wledge from generation to generation, with adverse effects on childhood health and nutrition. In a novel study published online this week in the Proceedings of the National Academy of Sciences, researchers report that parents, and especially mothers, who know more about plants and how to use them, have healt...

Inhibiting blood to save the brain

...therapeutic strategy that would block the damaging effects of fibrinogen without affecting its beneficial blood coagulation. Studying a mouse model, the researchers identified a specific receptor called Mac-1 that is expressed by microglial cells and binds to fibrinogen. Mice expressing a mutant form of fi...

Key found to kill cystic fibrosis superbug

...hat protects the B. cenocepacia bacterium from the effects of antibiotics. They hypothesize that preventing the synthesis of a key sugar required for this armour, 4-amino-4-deoxy-L-arabinose (Ara4N), may lead to a susceptibility within the cell membrane to antibiotics. "We are very excited with these fin...

Pregnancy hormone key to repairing nerve cell damage

...n mice and that introducing prolactin mimicked the effects of pregnancy on myelin production and repair in mi...ght of how we might be able to reverse some of the effects of the disease and improve the quality of life for those who live under its influence." ...

Lead-'scrubbing' drug may also improve muscle function in lead-exposed children

... succimer chelation therapy can produce beneficial effects on postural balance and movement in lead-exposed c...f succimer therapy can minimize long-term negative effects of lead on balance and movement. According to the most recent U.S. National Health and Nutrition...

Boosting brain power -- with chocolate

... fighting fatigue, sleep deprivation, and even the effects of ageing. Ian Macdonald, professor of metabolic physiology at The University of Nottingham, used magnetic resonance imaging (MRI) to detect increased activity in specific areas of the brain in individuals who had consumed a single drink of flavan...

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