Researchers at the Hebrew university of Jerusalem have created a molecule that could potentially lower diabetic patients’ higher risk of developing dementia or Alzheimer’s disease.
Recent studies indicate that high levels of sugar in the blood in diabetics and non-diabetics are a risk factor for the development of dementia, impaired cognition, and a decline of brain function. Diabetics have also been found to have twice the risk of developing Alzheimer's disease compared to non-diabetics.Now, researchers from the Hebrew University of Jerusalem have found a potential neuro-inflammatory pathway that could be responsible for the increases of diabetics’ risk of Alzheimer's and dementia. They also reveal a potential treatment to reverse this process.
The study shows that the diabetic rats given a daily injection of the sugar-lowering drug rosiglitazone for a month enjoyed a significant decrease in MAPK enzyme activity accompanied by a decrease in the inflammatory processes in the brain. According to the authors, this finding represents the first unequivocal evidence of a functional link between high blood sugar and the activation of this specific inflammatory pathway in the brain.
Using the diabetic rat model, they explored a novel approach that would lower the activation of these enzymes in the brain, and decrease neuronal cell death. In the last few years, Prof. Atlas developed a series of molecules that mimic the action of thioredoxin called thioredoxin-mimetic peptides (TXM), whose role is to protect the cells from early death through activating inflammatory pathways. The TXM peptides were effective in different animal models and were able to prevent the activation of the damaging MAPK kinases. Applied to the diabetic Zucker rats, one of the molecules, TXM-CB3, significantly reduced the activity of these enzymes, and lowered the accelerated brain cell death. These results indicate that the molecule managed to cross the blood-brain barrier and improve the condition of the brain cells, through lowering the inflammatory processes in the rats’ brains, despite the high glucose levels afflicting the rats.
The Hebrew University’s Prof. Atlas said: "This study paves the way for preventive treatment of damages caused by high sugar levels, and for reducing the risk of dementia and Alzheimer's disease in diabetics or people with elevated blood sugar levels. Following the successful animal testing of the molecule we developed, we hope to explore its potential benefit for treating cognitive and memory impairments caused by diabetes on humans.”
The molecule is protected by a patent registered by Yissum Research Development Company, the technology transfer arm of the Hebrew University.
The study, “Thioredoxin-Mimetic peptide CB3 Lowers MAPKinsase activity in the Zucker Rat Brain,” appeared in the journal Redox Biology, an official Journal of the Society for Free Radical Biology and Medicine and the Society for Free Radical Research-Europe.
The research was funded in part by funded by the H.L. Lauterbach Fund, the Haya and Shlomo Margalit Fund, and a NOFAR program (issued by MAGNET directorate in the Israeli Ministry of Industry, Trade & Labor). Researchers included Dr. Michael Trus; PhD student Moshe Cohen-Kutner; MSc student Lena Khomsky; and Hila Ben-Yehuda.
For information:Dov Smith
Dov Smith | Hebrew University
Resolving the mystery of preeclampsia
21.10.2016 | Universitätsklinikum Magdeburg
New potential cancer treatment using microwaves to target deep tumors
12.10.2016 | University of Texas at Arlington
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...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
21.10.2016 | Health and Medicine
21.10.2016 | Information Technology
21.10.2016 | Materials Sciences