University of Rochester scientists investigating the link between PCBs, pesticides and Parkinson’s disease demonstrated new and intricate reactions that occur in certain brain cells, making them more vulnerable to injury after exposures.
In two papers published in the journal NeuroToxicology (Dec. 2004 and Feb. 2005), the group describes how polychlorinated biphenyls (PCBs) disrupt dopamine neurons, which are the cells that degenerate during the course of Parkinson’s disease. Researchers also show that low levels of maneb, a fungicide commonly used in farming, can injure the antioxidant system in those same types of cells. Environmental contaminants might make dopamine cells more vulnerable to damage from normal aging, infection, or subsequent exposure to pollutants, researchers say.
The investigation is part of a nationwide race to better understand every aspect of Parkinson’s disease, which affects up to 1 million Americans. It is a progressive neurological disorder that occurs when certain nerve cells in the substantia nigra region of the brain die or can no longer produce the brain chemical dopamine. A lack of dopamine is what causes patients to experience tremors, stiffness in the limbs and trunk, and impaired movement or balance.
Leslie Orr | EurekAlert!
First time-lapse footage of cell activity during limb regeneration
25.10.2016 | eLife
Phenotype at the push of a button
25.10.2016 | Institut für Pflanzenbiochemie
Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.
This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...
Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion
Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
25.10.2016 | Earth Sciences
25.10.2016 | Power and Electrical Engineering
25.10.2016 | Process Engineering