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Frontiers news briefs: July 4
Date:7/4/2013

the brain, which leads to dysfunction and ultimately cell death. In this article, researchers discuss the function of dopamine in the striatum as affected during Huntington's disease. Based on studies of human patients and genetically modified mice, they show that changes in dopamine function could contribute to some of the symptoms of Huntington's disease. Specifically, they propose that increases in dopamine levels may be involved in the initial onset of chorea whereas decreases in dopamine are part of the late-stage symptoms of this disease. According to the researchers, effective treatments for Huntington's disease should be tailored to these time-dependent changes in dopamine levels.

Researcher contact:

Dr. Michael S. Levine
Intellectual and Developmental Disabilities Research Center, Semel Institute for Neuroscience and Human Behavior,
and the Brain Research Institute
University of California, USA
E-mail: mlevine@mednet.ucla.edu

URL: http://www.frontiersin.org/Decision_Neuroscience/10.3389/fnins.2013.00114/abstract


Frontiers in Plant Science

Electrical signalling along the phloem and its physiological responses in the maize leaf

Electrical phenomena in plants have attracted scientists since the eighteenth century. Similar to animal cells, also plant cells possess the ability to become excited under the influence of certain environmental factors and to generate rapid electrical signals propagating over long distances. The reason why plants have developed pathways for fast signal transmission presumably lies in the necessity to rapidly respond to environmental stress factors. Jrg Fromm and colleagues from the University of Hamburg here show that maize plants generate electrical signals in the phloem,
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Contact: Gozde Zorlu
gozde.zorlu@frontiersin.org
Frontiers
Source:Eurekalert

Page: 1 2 3 4 5 6

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