Submitted by kfesenma on Wed, 2011-11-23 08:00
Although many mental illnesses are uniquely human, animals sometimes exhibit abnormal behaviors similar to those seen in humans with psychological disorders. Such behaviors are called endophenotypes. Now, Caltech researchers have found that mice lacking a gene that encodes a particular protein found in the synapses of the brain display a number of endophenotypes associated with schizophrenia and autism spectrum disorders.
Submitted by mwoo on Wed, 2011-11-02 22:00
Turning on the heater is a reasonable response to a cold environment: switch to a toastier state until it warms up outside. Biologists have long thought cells would respond to their environment in a similar way. But now researchers at Caltech are finding that cells can respond using a new kind of pulsating mechanism. The principles behind this process are surprisingly simple, the researchers say, and could drive other cellular processes, revealing more about how the cells—and ultimately life—work.
Submitted by katien on Tue, 2011-11-01 07:00
Many meat-eating animals have unique ways of hunting down a meal using their senses. To find a tasty treat, bats use echolocation, snakes rely on infrared vision, and owls take advantage of the concave feathers on their faces, the better to help them hear possible prey. Leeches have not just one but two distinct ways of detecting dinner, and, according to new findings from biologists at Caltech, their preferred method changes as they age.
Submitted by katien on Thu, 2011-10-27 18:00
Using highly potent antibodies isolated from HIV-positive people, researchers have recently begun to identify ways to broadly neutralize the many possible subtypes of HIV. Now, a team led by biologists at Caltech has built upon one of these naturally occurring antibodies to create a stronger version they believe is a better candidate for clinical applications.
Submitted by kfesenma on Wed, 2011-10-26 15:00
Mark E. Davis and David A. Tirrell of Caltech have been elected to the Institute of Medicine, an honor that is considered among the highest in the fields of health and medicine. Both Davis and Tirrell are already members of the National Academy of Sciences and the National Academy of Engineering, making them two of only 13 living individuals who have been elected to all three branches of the National Academies.
Submitted by admin on Wed, 2011-10-05 23:01
Caltech has been rated the world's number one university in the 2011–2012 Times Higher Education global ranking of the top 200 universities, displacing Harvard University from the top spot for the first time in the survey's eight-year history.
Submitted by katien on Mon, 2011-10-03 07:00
The cameras in our cell phones have dramatically changed the way we share the special moments in our lives, making photographs instantly available to friends and family. Now, the imaging sensor chips that form the heart of these built-in cameras are helping engineers at the California Institute of Technology (Caltech) transform the way cell cultures are imaged by serving as the platform for a "smart" petri dish.
Submitted by katien on Mon, 2011-09-26 07:00
Responding to faces is a critical tool for social interactions between humans. Without the ability to read faces and their expressions, it would be hard to tell friends from strangers upon first glance, let alone a sad person from a happy one. Now, neuroscientists from Caltech, with the help of collaborators at Huntington Memorial Hospital in Pasadena and Cedars-Sinai Medical Center in Los Angeles, have discovered a novel response to human faces by looking at recordings from brain cells in neurosurgical patients.
Submitted by admin on Wed, 2011-09-21 07:00
Four members of the California Institute of Technology (Caltech) faculty—William Clemons Jr., assistant professor of biochemistry; Thanos Siapas, professor of computation and neural systems; Long Cai, assistant professor of chemistry; and Lea Goentoro, assistant professor of biology—have been named among the researchers being given National Institutes of Health (NIH) Director's Awards.
Submitted by admin on Thu, 2011-09-15 07:00
As we take in the world around us, learn, and form memories, the synapses between neurons in our brains are constantly being modified. Some get stronger, while others are allowed to shrink or get weaker. The network of enzyme-regulated chemical reactions that control these modifications is complex, to say the least. Now Mary Kennedy, the Allen and Lenabelle Davis Professor of Biology at Caltech, has come up with a way to tease apart the elusive details of that network.