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Tag: "differently" at biology news

Poor prenatal nutrition permanently damages function of insulin-producing cells in the pancreas

... only difference was that the mothers had been fed differently during the final week. As the young mice matured, the researchers tested their blood glucose (sugar) after meals. At age 2 months, the results were similar between the two groups. But over time, differences began to unfold. When 4 months old (compar...

Alcohol's effects on gene expression in the central nervous system

...reason that different cells can appear and work so differently with the same genes ?giving us, for example, unique eyes, skin, or hair ?is that only some genes are used or 'turned on' in each cell. This is called gene expression." McBride said that researchers now know that alcohol can change gene expression in...

Devising Nano Vision for an Optical Microscope

... How this structured illumination field—engineered differently to highlight the particular geometry of each type of specimen—scatters after striking the target can reveal the tiniest of details. “The scattering patterns are extremely sensitive to small changes in the shape and size of the scattering feature,?ex...

VCU Researchers Identify Networks Of Genes Responding To Alcohol In The Brain

...bout how the brains of the mouse strains responded differently to alcohol. An additional pathway found to be regulated by alcohol involved a nerve growth factor called Bdnf. Bdnf is found in the brain and is a vital part of nervous system development. "We found that the interaction between the Bdnf gene and se...

Vampire bats keep out of trouble by running

... a run. "They just seem to do everything a little differently from the general bat rule," Riskin says about what he refers to as the "cute, adorable, big-eyed and family-oriented" vampire bats. Not only are vampire bats unusual because they run, but also in the way that they power their gait. "Unlike most anim...

Revolutionary nanotechnology illuminates brain cells at work

... protein of interest is genetically fused with two differently colored tags made from variants of the jellyfish Green Fluorescent Protein (GFP). The colored tags are placed at each end of the molecule making a "biosensor." When the substance of interest binds to the sensor, the sensor backbone becomes reoriented...

A new way to share models of biological systems

...mputer models of them. If a computer model behaves differently than the real organism, we know that we've neglected an important component of the system. Quantitative models can also reveal previously unappreciated properties of complex systems, paving the way towards new drug treatments. This approach, known as...

Research may provide new link between soft drinks and weight gain

...fat storage is that the liver metabolizes fructose differently than it does other carbohydrates. "Similar to dietary fat, fructose doesn't appear to fully trigger the hormonal systems involved in the long-term control of food intake and energy metabolism," said coauthor Dr. Havel. The researchers say that furt...

Vitamin A's paradoxical role in influencing symmetry during embryonic development revealed

... the vicinity of the node are instructed to behave differently depending on whether they are on the left or right sides of the embryo. The action of retinoic acid makes sure that some of those cells ignore the left-right instructions and progress symmetrically. Belmonte compares the node to a doorway. "Before e...

MIT engineers an anti-cancer smart bomb

...re," Sasisekharan said. Also, the two drugs behave differently and are delivered on different schedules: anti-angiogenics over a prolonged period and chemotherapy in cycles. "We designed the nanocell keeping these practical problems in mind," he said. Using ready-made drugs and materials, "we created a balloon ...

Big differences in duplicated DNA distinguish chimp and human genomes

... specific to either chimps or humans are expressed differently in the two species. Gene expression is the process through which genetic information is changed into structures and functions in a living cell. In addition to other differences, researchers found that among shared segmental duplications, humans of...

Arthritis: What Wnt wrong?

...n arthritic processes. Arthritic diseases manifest differently depending on the type, with RA exhibiting inflammation of the synovium and loss of cartilage and bone and OA exhibiting narrowing of joint space, loss of protective cartilage, and growth of bone cysts (or osteophytes). Interestingly, Wnt-7b was stro...

Bees, Brains and Addiction

... that our brains process information about rewards differently if a reward is granted immediately for a simple behavior or if a person must work to receive the reward. His discovery is one of many that renowned neuroscientists in La Jolla have conveyed in non-technical language to students, teachers and other n...

Unraveling a stomach cancer puzzle

...group of seemingly unconnected genes were behaving differently in patients with stomach cancer. Now a multi-national research team led by the Melbourne Branch of the Ludwig Institute for Cancer Research (LICR) has joined the proverbial dots and identified a potential new target for stomach cancer therapy, accord...

Divergent life history shapes gene expression in brains of salmon

...f the nearly 3,000 genes we studied were expressed differently in the brains of sneakers and other male salmon came as a surprise," says Nadia Aubin-Horth, a postdoctoral researcher in the Bauer Center for Genomics Research in Harvard's Faculty of Arts and Sciences. "Since these males of the same species in the ...

NIH renews network focused on how genes influence drug responses

...racterize the genetic basis for why people respond differently to medicines, including aspirin, used to prevent clotting and treat cardiovascular disease. (Alan R. Shuldiner, M.D., University of Maryland School of Medicine) Pharmacogenetics of Phase II Drug Metabolizing Enzymes --$12.6 million provided by...

Researchers identify new catfish family

...art that resembles a cat's whisker) is articulated differently from that of an ictalurid. There also are differences in the bone structure of the skull and in the shape of the air bladder. "The ictalurids all have these big jaw muscles that come up over the top and anchor on top of the head" Hendrickson said. "...

Nose odors and mouth odors: The brain distinguishes

...that the brain perceives the same odorant molecule differently if it arrives through the nose rather than the mouth. In the August 18, 2005, issue of Neuron , researchers report that the smell of chocolate activated different brain regions according to whether the odor was introduced into the olfactory system t...

Clear rules needed to govern deep sea bioprospecting: UNU

...s/academia and private companies should be treated differently in access to deep seabed genetic resources. Designing a regime for bioprospecting in the deep seabed The report says regional agreements could be used as a first step towards a comprehensive international regime to protect the deep seabed from over...

A Father’s Day Gift: Free DNA Paternity Testing

...s/academia and private companies should be treated differently in access to deep seabed genetic resources. Designing a regime for bioprospecting in the deep seabed The report says regional agreements could be used as a first step towards a comprehensive international regime to protect the deep seabed from over...

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