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Tag: "affect" at biology news

Salk scientists hammer out a pathway that promotes muscle cell survival in mice

...on the underlying mechanisms of many diseases that affect cell survival, such as muscular dystrophy, neurodegenerative diseases, and congestive heart failure." Montminy’s team, led by postdoctoral researcher Rebecca Berdeaux, Ph.D., first became interested in the enzyme when they observed that mice engi...

Global survey of lizards reveals greater abundance of animals on islands than on mainland ecosystems

...at those animals that move to islands can strongly affect the sensitive animal communities on islands.? In addition to their increased sensitivity to biological invasions, populations on islands are more vulnerable than those on the mainland to sea level rise and increased storm activity, which are expect...

Cancer patients monitor fatigue in real time

...rage their symptom experiences. "Their mood may affect their recall. They may have been experiencing pain in addition to fatigue, and that affects how they remember the fatigue experience," she said. In Hacker's study, patients used a device that is worn like a wristwatch to record the data. The patie...

Targeting sugar on blood vessels may inhibit cancer growth

... by targeting the sugar, heparan sulfate, we could affect angiogenesis, which is the formation of new blood vessels," said Fuster. "In cancer, angiogenesis sustains growth as well as metastasis of tumors. An important finding was that, not only could we inhibit the growth of tumors in these mice, but that...

Scientists: As rainfall changes, tropical plants may acclimate

...anges that accompany a warming climate could still affect plant distribution and growth, such as those that ... precipitation changes ?nutrient uptake ?might not affect tropical plants. That said, plenty of others could, Schuur said. ...

New bacteria test could improve quality of fruit and vegetable juice

...n addition to agitating taste buds, the latter can affect consumer confidence. Lin's technique is significant because it identifies the organism quickly ?in a matter of hours, unlike traditional culturing methods, which are time consuming and require five to seven days to process. Lin said th...

WHO data confirms low level of resistance to Tamiflu

...dden onset of debilitating clinical symptoms which affect the entire body. Up to 500 million people are infected by influenza and up to 500,000 deaths are attributed to influenza each year. Influenza complications occur in all patient groups and include bronchitis, sinusitis, otitis media, and pneumonia. ...

Scientists develope a new model of artificial canine skin

...lows the study of those illnesses which most often affect dogs?skin without the need to use animals. To develop this model, cells from the epidermis (keratocytes) and the dermis (fibroblasts) from samples of healthy dogs were used. The dermis cells, inserted into a collagen marix (a very common protein i...

Parasites' impact goes beyond host to affect ecosystem

...suggests that parasites can not only substantially affect their hosts ?altering their growth, behavior, nutr... have influential effects that can trickle down to affect other residents of the ecosystem." Byers?and Wood’s study signals an increasing appreciation for...

Sleepless for science: Flies show link between sleep, immune system in Stanford study

...k the converse: when sleep is disrupted, does that affect immunity" The challenge was how to disrupt the flies' sleep. Schneider tried building a machine that jostled the flies randomly. "All it was really good at doing was throwing the tubes around the room," said Schneider. "Also it was too regular, th...

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

...to global effects of greenhouse gas emissions that affect climate change. The take-home message is that we can accelerate the recovery rate of coral reefs by adapting human behavior and reducing local pressure on reefs; this research provides encouragement and incentive for local management. ...

From the deep -- Researchers find new species of sea anemone

...broadly, may provide clues on how human activities affect this unique, seemingly removed ecosystem. "The thing about these communities is that they seem so ephemeral and so unplanned," Daly said. "A whale dies where it dies, and its carcass lands wherever. But these are actually some of the most stable d...

Better health twice as likely for nonsmokers who live and work with smoking restrictions

... smoking restrictions in the workplace and at home affect health status, researchers at the Mailman School of Public Health found that nonsmokers who live under both a total household and total workplace smoking ban are over two and a half times more likely to report better health than those without smoking...

Growing nerve cells in 3-D dramatically affects gene expression

... showing that culture techniques can significantly affect cell growth and function. This research shows that cells grown in a laboratory in 3-D environments, not in flat petri dishes, are more like cells grown in the ultimate 3-D environment ?the human body. "More and more, we're seeing evidence that cel...

Sleep quantity affects morning testosterone levels in older men

...n the amount of sleep a healthy older man gets can affect his level of testosterone in the morning, according to a study published in the April 1st issue of the journal SLEEP. The study, conducted by Plamen Penev, MD, PhD, of the University of Chicago, focused on 12 healthy men between the ages of 64 and 7...

Detecting poisons in nectar is an odour-ous task for honeybees

...versity) will present data on how toxins in nectar affect a honeybee’s willingness to eat floral nectar on Sunday 1st April at the Society for Experimental Biology’s Annual Meeting in Glasgow. Honeybees are very clever and can learn to associate almost any colour, shape, texture or scent with food. The n...

Individuals and populations differ in gene activity levels, not just genes

...research, as differing levels of gene activity may affect one's susceptibility to developing a disease or one's response to a particular drug. The research was conducted at the University of Washington, and was led by Joshua Akey, assistant professor of genome sciences, and John Storey, associate professor ...

Leukemia drug turns mini-molecules up, cancer genes down

...ug ATRA affects miRNA levels and how those changes affect the cells. The investigators exposed the leukemia cells to the drug for up to 96 hours, causing the cells to mature. The treatment increased the level of eight miRNAs and a drop in one compared with untreated cells. Of these, the researchers ...

Fish extinctions alter critical nutrients in water, study shows

...out how the disappearance of a freshwater fish can affect the availability of certain nutrients that other species rely on. Algae, at the base of the food chain, for example, rely on fish to cycle back into the water such nutrients as nitrogen and phosphorus, which are otherwise locked up in animal or pla...

Leeches ferry infection among newts

.... It does not appear to kill amphibians but might affect their ability to reproduce. "This is the first ... the infection is not fatal to the newts, it could affect their numbers, says Raffel . "When newts get infected, they often stop breeding, apparently to shore...

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