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Tag: "picture" at biology news

Exposure to dioxins influences male reproductive system, study of Vietnam veterans concludes

...isk of BPH is not a harmful effect, but the larger picture is that dioxins are affecting the normal growth and development of the reproductive system. Moreover, several effective treatments are available for BPH and thus reduction of BPH by a toxic compound is not a desirable effect." The study was based ...

Newly discovered behavior in cancer cells signals dangerous metastasis

... surroundings, a new study in rats suggests. This picture of how cancer cells shift between two alternating states -- travelers and nesters -- represents a new understanding of how cancer metastasizes, or spreads to other parts of the body, said the Duke Comprehensive Cancer Center researchers who conducted...

PNAS study reveals why organs fail following massive trauma

.... The authors achieved a statistically significant picture of the differences between traumatized and healthy patients for the first time, and despite skeptics that said it could not be done. With pure samples in hand, researchers used microarray technology to generate a long list of genes that change when...

Bitter taste identifies poisons in foods

...toxins. Together, the findings provide a complete picture describing individual differences in responses to actual foods at multiple levels: evolutionary, genetic, receptor, and perceptual. "The sense of taste enables us to detect bitter toxins within foods, and genetically-based differences in our bitter ...

Study: Living coral reefs provide better protection from tsunami waves

...quations that provided a limited but comprehensive picture of a tsunami strike. "We had to idealize a number of factors, because we wanted to create a model that could be used for a general shoreline," Kunkel said. "For example, we had to consider a perfectly even ocean floor, because uneven ones can funn...

NASA study: Alaskan fires affected Houston air quality in 2004

...f more than 100,000 feet, offering the first clear picture of how much ozone was present in each layer of the atmosphere above the city. While NASA scientists and Morris were collecting their data, forest fires in western Canada and eastern Alaska were consuming more acres than at any time during the past 5...

'Killer' B cells demonstrate evolutionary link between fish and mammal immune systems

...B cells in the first place. "Here we have a clear picture of where one part of the immune system, primitive phagocytes, adapted over time to serve a more complex role as part of the immune system that humans enjoy today," Sunyer said. "There is still much we can learn about our own health through the ongoi...

Plutonium or greenhouse gases? Weighing the energy options

...ink we have to find a way to consider the complete picture when choosing among energy sources." In an effort to capture that complete picture, Ewing compared carbon-based fossil fuels with nuclear power, considering not only the technologies involved but also the environmental impacts. Similar comparisons ...

MIT creates 3-D scaffold for growing stem cells

...ddition to helping researchers get a more accurate picture of how cells grow and behave in the body, the new synthetic structure can provide a more conducive microenvironment for tissue cell cultures and tissues used in regenerative medicine, such as skin grafts or neurons to replace brain cells lost to inju...

Trotting with emus to walk with dinosaurs

... with rapid prototyping technology. The bigger picture is also important and telling at the Red Gulch Dinosaur Tracksite, said Breitaupt. For instance, it appears that the dinosaurs were traveling along a tidal flat, perhaps in family groups, since there are juvenile and adult tracks. If so, that could i...

With record resolution and sensitivity, tool images how life organizes in a cell membrane

...rent isotopically labeled molecules at a time. The picture from each isotope is overlaid to produce a composite image that provides rich, mass-specific information about chemically what's in that cell membrane. Boxer compared the concept to learning about people sitting in chairs in a room to the organizati...

Tastes great! Study shows brain's response to pleasing -- and changing -- tastes

...rmones that cause the body to get rid of salt, the picture changed. Suddenly, the rats' brain activity rose as high when they received the salt water as it had when they received sugar water. The effect lasted for a while after the rats' bodies returned to normal salt levels, but soon enough it wore off. ...

ABCB6 is key to production of heme in hemoglobin

...uetz said. "So our work contributes to the overall picture of how disruption of the biochemical pathway of heme production can cause a variety of serious diseases." ...

Mouse study reveals new clues about virulence of 1918 influenza virus

...i, M.D. "This elegant research gives a detailed picture of the overzealous host reaction to infection by a...res use of a fully reconstructed virus. A fuller picture of the host immune response to the 1918 flu virus could also be valuable to scientists working to de...

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

...s that it was time to retire the old model. A new picture of how brassinosteroids stimulate plant growth now emerges based on those experiments: steroid hormones are still thought to inactivate BIN2 and reciprocally activate BES1, but instead of freeing BES1 to shuttle into the nucleus, it is now clear that...

Salk scientists untangle steroid hormone signaling in plants

...s that it was time to retire the old model. A new picture of how brassinosteroids stimulate plant growth now emerges based on those experiments: steroid hormones are still thought to inactivate BIN2 and reciprocally activate BES1, but instead of freeing BES1 to shuttle into the nucleus, it is now clear that...

Weizmann Institute scientists discover a molecular security mechanism for keeping mutations in check

...cules ?careless ones ?to the clamp. p53 enters the picture when it is alerted to the damage and causes p21 to be created. The p21 then acts as a sort of facilitator, helping to fasten the proper ubiquitin in place and clearing stalled DNA polymerase out of the way so its replacement can get to work. Thus, th...

Gene linked to rare disease activates fat breakdown

...GI-58 acts as a very potent activator offers a new picture of how stored fat is broken down in adipose and other tissues." The finding solves a puzzle first raised in 2001 with the discovery that CGI-58 caused the lipid storage disease CDS in some patients, Zechner said. The symptoms characteristic of the d...

Global warming may have damaged coral reefs forever

...vae could be largely to blame. Yet while a bleak picture is painted in the inner islands of the Seychelles, the survey area, from a diving perspective the outer carbonate islands still offer healthy coral reefs. Early results from diver tourist surveys in the inner islands suggest that diver satisfaction ...

Diabetes hits 275 Australians each day as pandemic spreads

...ony Abbott and provide the first definitive, clear picture of the rising tide of diabetes, obesity, hypertension (increased blood pressure) and chronic kidney disease. The statistics reveal that in Australia each year: Approximately 100,000 adults develop diabetes (275 people daily) More than 200,000 peo...

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