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Tag: "connection" at biology news

A switch between life and death

... and too few die. But until now, we hadn't found a connection between the signals and the cellular machinery that drives growth." Using sophisticated genetic techniques, Thompson and Cohen established that a small molecule, a microRNA called bantam, makes this link. Without bantam, tissues grow too slowly and ...

Marine 'dead zone' off Oregon is spreading

...when hypoxia and these "dead zones" will occur. No connection has been observed between these events and other major ocean cycles, such as El Niño or the Pacific Decadal Oscillation. The lack of wide-scale ocean monitoring makes determining the size and movement of the dead zone difficult, although some new in...

Drug triggers body's mechanism to reverse aging effect on memory process

...-term potentiation (LTP), the process by which the connection between the brain cells is enhanced and memory is ...ry," Lauterborn said. "They directly stimulate the connection between nerve cells, which has an immediate effect of boosting LTP. But they also increase the prese...

Novel connection found between biological clock and cancer

...air of genetics at DMS. "It suggests a fundamental connection among circadian timing, cell cycle progress, and potentially the origins of some cancers." Dunlap is a co-author of the paper with DMS colleagues, Jennifer Loros, professor of biochemistry, graduate student Christopher L. Baker, and former students ...

Mystery solved: Gold's power against autoimmune diseases defined

...30s, based on a widely held but probably erroneous connection at the time between tuberculosis and rheumatoid arthritis, a French doctor, Jacques Forestier, developed the use of gold drugs for the treatment of rheumatoid arthritis. Gold drugs have been used since then as an effective treatment for this and othe...

Landmark discovery of a Kaposi's sarcoma-associated herpesvirus receptor

...ays NIAID director Anthony S. Fauci, M.D. "But the connection between the virus and expression of its own receptor on a cell is even more provocative because it might change the way we think about KSHV-associated diseases and their treatment." Although less common in the United States now than early in the AID...

Study may help slay 'Yellow Monster'

...ns said. The questions include whether there is a connection between exposure to depleted uranium and Gulf War Syndrome or to increased cancers and birth defects in the Middle East. Stearns said it is estimated that more than 300 tons of depleted uranium were used during the first Gulf War. Military uses of de...

ASU researchers find link between social behavior, maternal traits in bees

... by worker bees with larger ovaries, cementing the connection between high pollen-hoarding strains and reproductive traits. Amdam also found it remarkable that other physiological traits known to differ between the two strains also correlated with ovary size in the experiment. The success of Amdam's research c...

Chemical signaling helps regulate sensory map formation in the brain

...o. Neurobiologists refer to this type of neuronal connection ?in which the spatial order of neurons of one part..." The term describes the creation of a coordinated connection that allows positional information from a grid of sensors, in this case the light-sensitive cells in...

Fruit fly reveals a potential connection between dementia and cancer

...ability to use genetic tools to establish a causal connection between a molecular pathway and neuronal death. Kh.... More broadly, the results point to an intriguing connection between cancer and dementia, two of the most important diseases in the elderly. ...

Neuroscientists discover new cell type that may help brain maintain memories of smells

...s to difficulty in visualizing the incredibly thin connection between the Blanes cell and its target neurons. ...he near future. The first relates to the possible connection between the sense of smell and Alzheimer's disease. The Case investigators found that the same biol...

The urban evolution lab

...le Genetic research has previously shown a direct connection between amyloid protein and the development of sen...ein that change the shape. Furthermore, there is a connection with the age at which the symptoms are first detected: the higher the expression (up to 150% as in D...

Researchers discover a new genetic cause of Alzheimer's disease

...le Genetic research has previously shown a direct connection between amyloid protein and the development of sen...ein that change the shape. Furthermore, there is a connection with the age at which the symptoms are first detected: the higher the expression (up to 150% as in D...

How 'hot' emotional brain interferes with 'cool' processing

... determine whether there was, indeed, a behavioral connection between deactivation of the dorsal system and impaired performance. "The experimental design mimicked the kind of distraction people experience in everyday life," Dolcos added. "For example someone driving on a highway, attempting to pay attention ...

Formation of cellulose fibers tracked for the first time

...provides the first clear evidence for a functional connection between synthesis of the cell wall and an array of protein fibers--called microtubules--that help to shape growing plant cells from the inside. "The more we understand about cellulose, the easier it will be to modify it," said Chris Somerville, dire...

Spousal illness can trigger partner death

...f older people--demonstrates yet another important connection between social networks and health," says Richard M. Suzman, PhD, associate director of the National Institute of Aging for Behavior and Social Research. "We don't yet know the full extent to which social networks affect health. We need to explore th...

Utah researchers confirm chromosome may harbor autism gene

...o autism. They're now looking at other genes for a connection to the disorder. Published in Human Heredity online, the study is part of the Utah Autism Research Project. The researchers are interested in finding more families with a history of autism to join the study. The just-published research confirms Fin...

Lactic acid not athlete's poison, but an energy source - if you know how to use it

...nally provide direct evidence for the hypothesized connection between the transporter molecules - the lactate shuttle - and the enzymes that burn lactate. In fact, the cellular mitochondrial network, or reticulum, has a complex of proteins that allow the uptake and oxidation, or burning, of lactic acid. "This ...

Scientists discover that widely available drug also helps fight kidney disease

...on," said Weimbs. It shows, for the first time, a connection between polycystin-1 and mTOR, and strongly suggests that rapamycin may be a promising drug for treating PKD, explained Weimbs. "The fact that rapamycin is already clinically approved for other uses will facilitate future clinical trials of the drug....

Manipulating single cell receptor alters animal behavior

..."In our study," he says, "we wanted to examine the connection between these intracellular changes and behavior by looking at the function of two particular signaling pathways that are activated by the receptor for angiotensin." "We gave the animals a drug that bound the AT1 receptor and activated one signali...

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