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Tag: "reveals" at biology news

'Underground' tunnels discovered as means for communication between immune system cells

...are capable of long-distance communication, but it reveals a hereto-unknown mechanism cells use for exchanging information. Blood-derived dendritic cells and macrophages, both antigen-presenting cells, make use of these so-called tunneling nanotubules to relay molecular messages, report Simon C. Watkins, Ph...

Ancient DNA confirms single origin of Malagasy primates

...alysis of the DNA obtained from the extinct giants reveals that they, like the living lemurs, are descended from a single primate ancestor that colonized Madagascar more than 60 million years ago, Yoder said. The biologists extracted DNA from nine subfossil individuals in two of the more bizarre extinct spe...

Computer modeling reveals hidden conversations within cells

...l over the behavior of a cell. The computer model reveals the hidden conversations in the cell's wiring." The researchers attribute their success in developing the computer model, despite criticism that the computational approach would require too many simplifications to accurately model cell communication...

Learning how SARS spikes its quarry

... the receptor," said Harrison. Thus, the structure reveals details about how even small mutations in the spike protein gene that alter the identity of amino acids at those sites can affect the virus's ability to infect humans. Such mutations enable viral transmission by altering the shape of the spike protei...

miRNAs and musculature

...ae. Analysis of the mutant larvae after feeding reveals disrupted somatic musculature, strongly suggesting a role for Dmir-1 in the maintenance of muscle integrity and identity in times of stress induced by growth. Dr. Sokol proposes that "Mir-1 could function generally to maintain muscle cell identity b...

Mosquitoes are more attracted to individuals infected with malaria

...n Western Kenya by Jacob Koella and colleagues now reveals that mosquitoes are more attracted to children with the infectious stages of malaria than to those infected with non-transmissible forms of the disease or to uninfected people. The question of whether malaria increases your chances of being bitten b...

New discovery blurs distinction between human cells and those of bacteria

...greater focus on them now." Yeates' Science paper reveals the first structures of the proteins that make up these shells, and the first high-resolution insights into how they function. "Those microcompartments have remained shrouded in mystery, largely because of an absence of a detailed understanding of t...

Nighttime Dying Linked To Sleep Apnea From Brain Cell Loss

...greater focus on them now." Yeates' Science paper reveals the first structures of the proteins that make up these shells, and the first high-resolution insights into how they function. "Those microcompartments have remained shrouded in mystery, largely because of an absence of a detailed understanding of t...

Field tested: Grasslands won't help buffer climate change as carbon dioxide levels rise

...greater focus on them now." Yeates' Science paper reveals the first structures of the proteins that make up these shells, and the first high-resolution insights into how they function. "Those microcompartments have remained shrouded in mystery, largely because of an absence of a detailed understanding of t...

The making of a fat cell

A new study reveals critical molecular events in the origin of fat cells. The findings are central to understanding chronic diseases, such as obesity and diabetes, as fat cells produce hormones critical for metabolic control, the researchers said. The study finds that ...

System Drastically Cuts Down Botulism Detection Time

A new study reveals critical molecular events in the origin of fat cells. The findings are central to understanding chronic diseases, such as obesity and diabetes, as fat cells produce hormones critical for metabolic control, the researchers said. The study finds that ...

Short-term Bio Sensors Monitor From Afar

A new study reveals critical molecular events in the origin of fat cells. The findings are central to understanding chronic diseases, such as obesity and diabetes, as fat cells produce hormones critical for metabolic control, the researchers said. The study finds that ...

Key To Stem Cell Transplant Success Is Tricking Immune System

A new study reveals critical molecular events in the origin of fat cells. The findings are central to understanding chronic diseases, such as obesity and diabetes, as fat cells produce hormones critical for metabolic control, the researchers said. The study finds that ...

New study finds how cells with damaged DNA alert the immune system

...and cell biology and lead author of the paper. "It reveals how natural killer cells distinguish something they're supposed to get rid of versus something they're supposed to keep." The researchers explain that the immune system is designed to detect and attack foreign invaders, but cancer cells present a sp...

Renewed hope for Parkinson's patients

...and cell biology and lead author of the paper. "It reveals how natural killer cells distinguish something they're supposed to get rid of versus something they're supposed to keep." The researchers explain that the immune system is designed to detect and attack foreign invaders, but cancer cells present a sp...

Eliminating bacterial infections out of thin air

...bactericidal agents and killing of bacteria. This reveals that a novel approach to treating bacterial infection is by increasing the killing capacity of cells of the innate immune system. In a related commentary, Kol Zarember and Harry Melach write, "By dissecting the role of HIF-1 in innate immune defenses...

Clean skies=faster global warming?

...bactericidal agents and killing of bacteria. This reveals that a novel approach to treating bacterial infection is by increasing the killing capacity of cells of the innate immune system. In a related commentary, Kol Zarember and Harry Melach write, "By dissecting the role of HIF-1 in innate immune defenses...

Emerald Spectre haunts Ontario's ash forests

...and Engineering Research Council of Canada (NSERC) reveals that unprecedented actions taken to stop the borer's spread have so far failed to halt its outward march. At risk are nine billion ash trees in the United States and Ontario, with an estimated value of more than $300 billion in the United States alon...

Researchers use brain scans to predict behavior

...he volunteers with functional brain imaging, which reveals increases in blood flow to different brain areas indicative of increased activity in those regions. Based on brain activity patterns that reflected whether the subjects used the hint or not, scientists found they could frequently predict whether a vo...

Researcher uncovers details of how cancer spreads

...e journal Developmental Cell (Vol. 9, August 2005) reveals how connective tissue holding a cancer cell in place might degrade, unmooring the diseased cell and allowing it to spread to other parts of the body. "We have identified a pathway that is specific for cancer," said Jun-Lin Guan, a professor in the D...

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