News articles tagged with "biology"

04/16/2014 14:25:50
Katie Neith
As reported in a paper published online today in the journal Nature, Caltech biologist David J. Anderson and his colleagues have genetically identified neurons that control aggressive behavior in the mouse hypothalamus, a structure that lies deep in the brain. Researchers have long known that innate social behaviors like mating and aggression are closely related, but the specific neurons in the brain that control these behaviors had not been identified until now.
01/30/2014 14:02:45
Katie Neith
Researchers at Caltech are the first to have utilized high-resolution electron microscopy to look at HIV infection within the actual tissue of an infected organism, providing perhaps the most detailed characterization yet of HIV infection in the gut.
01/30/2014 09:09:08
Katie Neith
Previous studies of anxiety in the brain have focused on the amygdala, an area known to play a role in fear. But a team of researchers led by biologists at Caltech had a hunch that understanding a different brain area, the lateral septum (LS), could provide more clues into how the brain processes anxiety. Their instincts paid off.
01/16/2014 09:02:47
Katie Neith
According to the latest studies from the fly laboratory of Caltech biologist David Anderson, male fruit flies fight more than their female counterparts because they have special cells in their brains that promote fighting. These cells appear to be absent in the brains of female fruit flies.
01/14/2014 09:05:07
Jessica Stoller-Conrad
"It was a tremendous surprise that the agent that drives metamorphosis is such an elaborate, well-organized injection machine," says coauthor Grant Jensen.
A rendered image of the porcupine-like array of phage tail-like contractile structures in P. luteoviolacea bacteria.
12/12/2013 22:50:24
Kathy Svitil
Alexander Varshavsky was honored for "his discovery of the critical molecular determinants and biological functions of intracellular protein degradation," according to the award citation.
12/05/2013 09:00:08
Jessica Stoller-Conrad
"Traditional research has studied autism as a genetic disorder and a disorder of the brain, but our work shows that gut bacteria may contribute to ASD-like symptoms in ways that were previously unappreciated," says Sarkis Mazmanian.
11/20/2013 09:00:05
Katie Neith
A group of researchers led by Caltech neuroscientist Ralph Adolphs has made the first recordings of the firings of single neurons in the brains of autistic individuals, and has found specific neurons in a region called the amygdala that show reduced processing of the eye region of faces.
10/28/2013 11:40:06
Ann Motrunich

Glaucoma, the leading cause of blindness, affects some 70 million people, including four million Americans. As Americans age, the problem is expected to worsen in the U.S.

10/22/2013 11:27:34
Jessica Stoller-Conrad
New Caltech faculty member Lulu Qian performs research in the field of molecular programming to design synthetic molecular systems with neural-network-like behaviors and tiny robots from the programmed interactions of DNA molecules.
10/10/2013 09:02:25
Jessica Stoller-Conrad

When you're a tiny mouse in the wild, spotting aerial predators—like hawks and owls—is essential to your survival.

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