puzzle 2 3

Tag: "puzzle" at biology news

A new tool against brain disease

...ly combating the virus," said Walker. "But a major puzzle has been that even in late-stage illness, when one can still measure great numbers of these immune cells, they don't seem to be controlling the virus at all." An important clue to why killer T cells stop functioning after infection came from ea...

Scientists discover why cornea is transparent and free of blood vessels, allowing vision

... Scientists have been wrestling with the "clarity" puzzle for many decades. And, while some previous studies have revealed small clues, none have pointed to one major mechanism, until this study. In most other tissues of the body, blood vessel growth or angiogenesis occurs in response to a need for increa...

How healthy is that marsh? Biologists count parasites

...cle. "Trematodes require all of the pieces of the puzzle to complete their lifecycle," Lafferty said. "When we see a lot of parasites in an estuary, we know it is in good shape. For example, an estuary with high infection rates tells you that it is visited by many birds, and many types of birds." The goal...

Even a little cooling helps after cardiac arrest

...cle. "Trematodes require all of the pieces of the puzzle to complete their lifecycle," Lafferty said. "When we see a lot of parasites in an estuary, we know it is in good shape. For example, an estuary with high infection rates tells you that it is visited by many birds, and many types of birds." The goal...

Researchers show how brain decodes complex smells

...e brain process each scent component like a jigsaw puzzle piece, assembling the signals until it recognizes the picture is a cookie? To find answers, the Duke researchers exposed mice to different odors and measured response of neurons across the olfactory bulb with intrinsic signal imaging. The imaging te...

A protein complex that untangles DNA

...at Karolinska Institutet have found a piece of the puzzle of how genetic information remains intact despite this continuous exchange of cells. Their results are presented in the latest issue of the scientific journal Molecular Cell. An adult human consists of about 50,000 billion cells, 1% of which die an...

Researchers offer clues to how leaves patterns are formed

...ation of the shoot and root. With our piece of the puzzle added, it indeed seems the same mechanism is responsible for all these events." What Scarpella and his research team--Dr. Thomas Berleth's group from the University of Toronto and Dr. Jiri Friml from the University of Tuebingen--discovered has int...

Movie spies on malaria parasite's sneaky behavior

...6 publication in Science--clear up a long-standing puzzle about the malaria parasite's life cycle. The discovery could lead to new ways of treating malaria, a disease that infects 300 million people per year and kills 1 million. "The parasite has evolved this complex structure. The best image to describe ...

New understanding of parasite cell structures may provide treatments for serious tropical diseases

...linositol has remained a mouthful for laymen and a puzzle for scientists. And yet GPIs, as science thankfully calls these cellular lipids, are important in numerous biological functions, including disease transmission. Now, for the first time, cellular biologists at the University of Georgia have developed...

Gene linked to rare disease activates fat breakdown

... 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 disorder coupled with the structure of the enzyme encoded by CGI-58 led researchers to suspect...

Nice guys do finish first in lizards' evolutionary race

...itories and be successful. That's the evolutionary puzzle that we needed to solve." Gene mapping revealed that the male blue-throats who buddied up are not even remotely related ?yet still share many genes. Somehow, McAdam said, the altruistic lizards know they're working to pass on their genes, even thoug...

Major cancer study aims to identify protein markers for early-stage disease

... an enzyme, into pieces. Once enough pieces of the puzzle are inputted into the database, it is expected that order will appear. The result could be the identification of biomarkers associated with early-stage cancer of the breast. ...

Ohio University researchers discover evolutionary oddity in flamingos

...eat," he said. "It's an important new piece of the puzzle of flamingo feeding--frankly, a piece we hadn't known was missing!" ...

UNC scientists solve mystery of how largest cellular motor protein powers movement

...C School of Medicine. Dokholyan said the dynein puzzle is similar to figuring out how auto engines make cars move. “You have an engine up front that burns gas, but we didn’t know how the wheels are made to move.? Dr. Timothy Elston, associate professor of pharmacology and director of the School of M...

Reading Shakespeare has dramatic effect on human brain

...f Coriolanus, in a similar way to putting a jigsaw puzzle together. If it is easy to see which pieces slot together you become bored of the game, but if the pieces don't appear to fit, when we know they should, the brain becomes excited. By throwing odd words into seemingly normal sentences, Shakespeare su...

UCSD researchers discover internal compass of immune cell

...tissues. "These findings solve the long-standing puzzle of how neutrophils find their way and move toward sites of injury or infection in the body," said senior author Wolfgang Junger, Ph.D., adjunct professor of surgery at UCSD Medical Center. His team set out to identify the key mechanisms of signal ...

Morphine makes lasting -- and surprising -- change in the brain

...ing and memory. "We’ve added a new piece to the puzzle of how addictive drugs affect the brain," Kauer said. "We’ve shown here that morphine makes lasting changes in the brain by blocking a mechanism that’s believed to be the key to memory making. So these findings reinforce the notion that addiction is ...

Motor protein plays key role in connecting neurons

...eurons, scientists say. In another piece of the puzzle of how neurons form connections, researchers have found myosin X travels a portion of a neuron's backbone called the actin filament, a sort of two-way highway in the cell's highest traffic area, says Dr. Wen-Cheng Xiong, developmental neurobiologist...

Study uncovers a lethal secret of 1918 influenza virus

... "This research provides an important piece in the puzzle of the 1918 virus, helping us to better understand influenza viruses and their potential to cause pandemics." By infecting monkeys with the virus, the team was able to show that the 1918 virus prompted a deadly respiratory infection that echoed hi...

Chemical switch triggers critical cell activities

...from NEDD8 to grab it, she noted. And that was the puzzle the St. Jude researchers solved. Specifically, the St. Jude study showed that when NEDD8 forms a thioester bond with E1's left hand, it squeezes itself next to the E2 docking site, which is facing away from NEDD8, according to Danny Huang, Ph.D.,...

1 2 3 4