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Tag: "effects" at biology news

Protein enables discovery of quantum effect in photosynthesis

...the researches to discover that quantum mechanical effects appear to play a role in photosynthesis. The taco shell protein is arguably the most studied and understood protein in a complex photosynthesis researchers refer to as the antenna system, molecules that efficiently transfer energy from light in a...

Gene malfunctions cause schizophrenia, depression symptoms in mice

...e. The researchers concluded that the different effects of antipsychotic and antidepressant drugs on the two mutant strains "might provide clues to effective medications for these patient groups. Indeed, these mice could represent a model system to explore novel treatment and preventative strategies for c...

Climate change impacts stream life

...e emphasis has been given so far to the ecological effects of climate change on these running-waters. No...f Biosciences, has examined for the first time the effects of climate change on stream species. The study looked at the effects of climate change on stre...

Role of noise in neurons

...for transmitting information. They show that noise effects in ion channels in the brain are much larger than ...nformation in the AP, and they conclude that these effects are much larger than previously supposed and therefore must be taken into account in any future stud...

Traumas like Sept. 11 make brains more reactive to fear

...epression. One of the first studies to look at the effects of trauma on the brains of healthy people, it is published in the May issue of the journal Emotion. "These people appear to be doing okay, but they may, indeed, be having more sensitive responses to upsetting stimuli," said Elise Temple, a co-autho...

Anthrax paralyzes immune cells with lethal toxin, UF research shows

... unusual approach to tease out the anthrax toxin's effects on cell migration: They allowed the immune cells to be hijacked by another bacterium, Listeria monocytogenes. Listeria is often used as a tool to study actin because it commandeers human cells and induces them to form the filaments, which the bacteri...

Premature births may be linked to seasonal levels of pesticides and nitrates in surface water

...we put into our environment has potential pandemic effects on pregnancy outcome and possibly on child development is a momentous observation, which hopefully will help transform the way humanity cares for its world," said James Lemons, M.D., Hugh McK. Landon Professor of Pediatrics at the IU School of Medici...

Genetic roots of bipolar disorder revealed by first genome-wide study of illness

...r disorder depends in part on the combined, small effects of variations in many different genes in the brain...lay a role in bipolar disorder. Understanding the effects that variations of these genes have on brain-cell function could lead to explanations of how they co...

Fat screen delivers plant-derived chemical with antidiabetic effects

After screening hundreds of compounds for their effects on fat development, researchers have discovered th...s fights diabetes in mice without some of the side effects attributed to other antidiabetes drugs. The chemical they pinpointed, known as harmine, was first is...

Molecule that destroys bone also protects it, new research shows

...e sclerosis, colitis, psoriasis and lupus. The effects of an IL-17 deficiency in periodontal disease, however, were unknown, so Gaffen’s lab set out to investigate. "I predicted these mice without the IL-17 receptor were going to be protected from periodontal bone loss, just like they’re protected f...

HIV survival improves if patients stay in care

...ewly diagnosed with HIV in Houston to evaluate the effects of knowledge about the disease socioeconomics, and other factors on retention in care. ...

Parasites' impact goes beyond host to affect ecosystem

...e non-lethal impacts of parasites have influential effects that can trickle down to affect other residents of the ecosystem." Byers?and Wood’s study signals an increasing appreciation for parasites in ecological studies. "Parasitism is the most common lifestyle out there," says Byers. "It’s playing a rol...

DNA-damage test could aid drug development

... reacted to three toxic DNA- damaging agents whose effects had been studied by Samson's lab, and found the results correlated well with results from the existing test. Additionally, he experimented with mutant mice created by Samson's lab that are deficient in certain DNA-repair systems. The bone marrow cell...

100 percent of pregnant women have at least one kind of pesticide in their placenta

...otherhood and lower weight in babies. "Serious effects on the baby" According to María José López, "we do not really know the consequences of exposure to disruptive pesticides in children, but we can predict that they may have serious effects, since this placenta exposure occurs at key moments of the...

Asexual worm quickly adapts to soil contamination

... demonstrated this in her study into the long-term effects of environmental pollution on soil organisms. En...d adaptations. Doroszuk investigated the long-term effects of pollution on the bacteria-eating nematode Acrobeloides nanus. This asexually reproducing nematode...

Palau's coral reefs show differential habitat recovery following the 1998 bleaching event

...f bleaching, believed to be one of the detrimental effects of climate change, may receive a welcomed "buffer"...actors," says van Woesik. "They’re added to global effects of greenhouse gas emissions that affect climate change. The take-home message is that we can acceler...

Heavy multivitamin use may be linked to advanced prostate cancer

... Denmark, discuss the positive and negative health effects of antioxidant supplements. “Lawson [and colleagues] add to the growing evidence that questions the beneficial value of antioxidant vitamin pills in generally well-nourished populations and underscore the possibility that antioxidant supplements coul...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...pe organ, and a presentation on unusual acoustical effects in the Salt Lake Tabernacle. More details can be ...sts were originally interested in underwater noise effects and only later adapted their work to noise in muscle. (2pUW9; contact Karim Sabra, ksabra@mpl.ucsd...

Chemical maps hint at drug's effects on schizophrenia

...g researchers a tool to explore the metabolic side effects of these and other drugs. The team's findings a...d to treat psychiatric conditions, have fewer side effects than the older antipsychotics, but several still induce weight gain and diabetes. Schizophrenic p...

Research says boiling broccoli ruins its anti-cancer properties

...f vegetables was then studied by investigating the effects of cooking by boiling, steaming, microwave cooking...8%, cauliflower 75% and green cabbage 65%. The effects of other cooking methods were investigated: steaming for 0?0 min, microwave cooking for 0? min and s...

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