Tag: "behavior" at biology news
Researchers identify key gene that may be a marker of breast cancer metastasis
..., however, that they could reverse this aggressive behavior
by using molecules called "small interfering RNAs" to knock out the gene called CEACAM6 (carcinoembryonic antigen-related cell adhesion molecule 6). "Overall, these findings identify CEACAM6 as a unique mediator of the aggressiveness and spread of AI...
Omega-3 fatty acid may help prevent Alzheimer's brain lesions
... said Frank LaFerla, professor of neurobiology and behavior
and co-author of the study. This research appears in the April 18 issue of The Journal of Neuroscience. LaFerla and his research team studied the effects of DHA in mice bred to develop the plaques and tangles associated with Alzheimers disease. M...
A genetic 'gang of 4' drives spread of breast cancer
...ing of the genes for these four proteins and their behavior
in metastasis led us to hypothesize that they might be cooperating with each other in a way that would give an advantage to cells in the primary tumor," said Massagu. "These same genes, we believed, might also be used for some related purpose in the ...
Study pries into ovarian cancer's deadly secrets
...arian tumors similar in morphology and biological behavior
to human ovarian endometrioid adenocarcinomas rapidly developed and often metastasized. To create the new mouse model for ovarian endometrioid adenocarcinoma, Chos research team used two existing types of transgenic mice to breed mice that express...
Nanotextured implant materials: blending in, not fighting back
...nostructured implants in live animals. If the same behavior
holds true for materials placed in the body, the rapid growth of endothelial cells would help the implants to integrate quickly into existing blood vessels, provoking less immune response and a longer-lasting repair. ...
Disease can be our ally, not just our enemy, says new book by UCR evolutionary biologist
...th disease." At UCR, Zuk studies parasites and behavior
in a variety of animals. Her research centers on sexual selection and the effects of parasites on mate choice and the evolution of secondary sex characters. Her popular writings include contributions to the Los Angeles Times , Natural History , a...
Researchers identify gene involved in dog size
...all of what we learn from studying body structure, behavior
and disease susceptibility in dogs helps us understand some aspect of human health and biology. In addition to Ostrander and her colleagues at NHGRI, the team included researchers from Cornell University in Ithaca, N.Y.; the University of Utah in S...
Networking around the clock
... a network that enables the insects to adapt their behavior
according to seasonal changes. This discovery lead...mals, and presumably humans, adjust physiology and behavior
to environmental changes such as short winter days and long summer ones. For years, behavioral ge...
Good behavior, religiousness may be genetic
...rnal of Personality shows that selfless and social behavior
is not purely a product of environment, specifically religious environment. After studying the behavior
of adult twins, researchers found that, while altruistic behavior
and religiousness tended to appear...
UT Metroplex institutions to collaborate on biomedical research
... of prefrontal cortex and amygdala in self-harming behavior
among depressed youth" Dr. John Hart, medical science director, Center for BrainHealth at UT Dallas, and Dr. Rongrong Tao, assistant professor of psychiatry at UT Southwestern. This project explores the neurobiological basis for self-harming behavio...
In young mice, gregariousness seems to reside in the genes
...f primates, according to scientific gospel, social behavior
is dictated primarily by competition for resources...d sexual maturity, the genetic influence on social behavior
ebbed and the animals became much more responsive to social cues such as gender, according to Lahvis...
NIDA study identifies genes that might help some people abstain from smoking
...s able to successfully quit the cigarette- smoking behavior
and one that was not. We identified 221 genes that distinguished successful quitters from those who were unsuccessful, says Dr. Uhl. We know the functions of about 187 of these genes, but 34 have functions that are unknown at present. We also found...
First impressions: Computer model behaves like humans on visual categorization task
...irst time a model has been able to reproduce human behavior
on that kind of task." The study, issued on line in advance of the April 10, 2007 Proceedings of the National Academy of Sciences (PNAS), stems from a collaboration between computational neuroscientists in Poggio's lab and Aude Oliva, a cognitive neu...
Spiteful soldiers and sex ratio conflict among parasitoid wasps
...oretical study of how natural selection shapes the behavior
of these larvae, published in the April issue of t...pothesis and found in favor of the view that their behavior
is altogether spiteful. Andy Gardner, now at St John's College, Oxford University, explains, "We f...
Getting dirty may lift your mood
...acteria, normally found in the soil, altered their behavior
in a way similar to that produced by antidepressan...pression in people, thus M. vaccaes effects on the behavior
of mice may be due to increasing the release of serotonin in parts of the brain that regulate mood. ...
Penn scientists engineer small molecules to probe proteins deep inside cell membrane
...brane proteins called integrins that influence the behavior
of platelets, small blood cells important in clotting. One of these, the IIb3 integrin, the most prominent integrin on platelets, is involved in making platelet aggregates, an important first step in the clotting process. The other integrin, called...
New book presents neurobiology from an evolutionary perspective
...lest animals have the capacity for modifying their behavior
by adjusting the activities of their nervous systems."...
Atlas of Science Literacy completes mapping of science-learning pathways
...of the human body; Human society, including group behavior
and political systems; The designed world from materials science to health technology; The mathematical world of numbers, shapes and reasoning; Historical perspectives, from the Copernican revolution to the Industrial Age; Common themes that cut ...
NIH neuroscience microarray consortium launches high-throughput genotyping services
..."scientists investigating any aspect of the brain, behavior
or neurological disease have access to a full range of microarray technologies for scanning the entire human genome and all of the genes for which it encodes." Each of the four members of the Consortium offer specialized services. The Translational...
Ewwwww! UCLA anthropologist studies evolution's disgusting side
...l increased disgust toward certain forms of sexual behavior
during the time in their menstrual cycle when they...r disgust reactions toward unusual forms of sexual behavior
during ovulation dont make sense except when considered in the context of reproductive fitness," Fe...
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