Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Researchers Discover Weak Link in Alzheimerís Drug Candidates

Ratnesh Lal, a UCSD bioengineering and mechanical engineering professor, led a multi-disciplinary team of researchers in a breakthrough discovery relating to Alzheimer's disease.
Ratnesh Lal, a UCSD bioengineering and mechanical engineering professor, led a multi-disciplinary team of researchers in a breakthrough discovery relating to Alzheimer's disease.

Abstract:
Some current therapies being investigated for Alzheimer's disease may cause further neural degeneration and cell death, according to a breakthrough discovery by UC San Diego researchers. By combining three dimensional computer simulations with high resolution atomic force microscopy membrane protein and cell imaging, electrical recording and various cellular assays, UCSD nano-biophysicist Ratnesh Lal and his colleagues investigated the structure and function of truncated peptides, known as nonamyloidgenic peptides, formed by some Alzheimer's drug candidates.

By Andrea Siedsma

Researchers Discover Weak Link in Alzheimerís Drug Candidates

San Diego, CA | Posted on April 2nd, 2010

The researchers found that the nonamyloidgenic peptides formed active ion channels that caused the cells to take in very high levels of calcium ions, which damaged synaptic efficiency and eventually killed neurons, neurons that are linked to memory loss in human brain.

As a result of their current findings and related previous work, Lal and his colleagues believe that aggregate-forming amyloidogenic peptides promote neurological diseases by forming holes or channels in cell membranes, disturbing ionic homeostasis by allowing unwanted ion flow in-and-out of cells, and most importantly allowing toxic amounts of calcium ions into neural cells.

Truncated, shorter non-amyloidogenic peptide fragments that also form ion channels and alter neuronal viability, are assumed by biomedical researchers to be non-toxic and are currently targeted to treat Alzheimer's disease patients. Details of their research were recently published in a paper entitled "Truncated ‚-amyloid peptide channels provide an alternative mechanism for Alzheimer's Disease and Down syndrome" in the Proceedings of the National Academy of Sciences.

"There are several drugs to treat Alzheimer's in Trials I and II, but we don't believe that they will be adopted for clinical usage," said Lal, a joint professor in the UCSD Jacobs School of Engineering's Department of Mechanical and Aerospace Engineering and Bioengineering. We believe we are providing the most direct mechanism of Alzheimer's disease and Down Syndrome pathology. Through our research we have provided a structure and mechanism (an ion channel) that can account for the pathology. The strategy to control the activity of this structure - the opening and closing of the channel - should be targeted for an effective treatment."

Lal and his colleagues are now working on a 3D structural model of the ion channel using their data to identify the domains (or sites) of the channel for designing effective therapeutics. Lal said the use of advanced nanotechnology and biology combined with a multi disciplinary approach, aided in the researchers' breakthrough discovery.

"Without advances in technology and a multi disciplinary approach this kind of complex research would not move forward," said Lal, a trained physicist and neurobiologist who joined the UCSD faculty in January 2010 from the University of Chicago. ""My goal is to provide practical solutions for effective human health management using advances in nanoscience and technology with a multidisciplinary and multi-scale (nano-to-translational) integrated approach," he added.

####

About University of California, San Diego
UC San Diego is dedicated to the advancement of knowledge through excellence in education and research at the undergraduate, graduate, professional school and postdoctoral levels. The campus is committed to community engagement, public service and industry partnerships in order to advance the health and well-being of our region, state, nation and the world. Our academic community of world-renowned faculty, bright students and dedicated staff is characterized by a culture of interdisciplinary collaboration and innovation which spans the globe.

To foster the best possible working and learning environment, our university strives to maintain a climate of fairness, cooperation, and professionalism, which is embodied in our campus Principles of Community. UC San Diego embraces diversity, equity, and inclusion as essential ingredients of academic excellence in higher education.

For more information, please click here

Contacts:
Media Contact
Andrea Siedsma
858.822.0899

Copyright © University of California, San Diego

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

HP Supercomputer at NREL Garners Top Honor October 19th, 2014

First Canada Excellence Research Chair gets $10 million from the federal government for oilsands research at the University of Calgary: Federal government announces prestigious research chair to study improving oil production efficiency October 19th, 2014

Ucore's McKenzie to Deliver Presentation to Rare Earths Conference in Singapore as Highlight of Fall 2014 Marketplace Schedule October 19th, 2014

Non-Toxic Nanocatalysts Open New Window for Significant Decrease in Reaction Process October 19th, 2014

Possible Futures

Superconducting circuits, simplified: New circuit design could unlock the power of experimental superconducting computer chips October 18th, 2014

Nanocoatings Market By Product Is Expected To Reach USD 8.17 Billion By 2020: Grand View Research, Inc. October 15th, 2014

Perpetuus Carbon Group Receives Independent Verification of its Production Capacity for Graphenes at 140 Tonnes per Annum: Perpetuus Becomes the First Manufacturer in the Sector to Allow Third Party Audit October 7th, 2014

PEN Inc. Chairman Scott Rickert Announces Company Vision, Product Priorities and Management Team: Webcast Highlights the Launch of PEN October 3rd, 2014

Academic/Education

First Canada Excellence Research Chair gets $10 million from the federal government for oilsands research at the University of Calgary: Federal government announces prestigious research chair to study improving oil production efficiency October 19th, 2014

Raytheon, UMass Lowell open on-campus research institute: Industry leaderís researchers to collaborate with faculty, students to move key technologies forward through first-of-its-kind partnership October 11th, 2014

SUNY Colleges of Nanoscale Science and Engineering and National Institute for Occupational Safety and Health Announce Expanded Partnership October 2nd, 2014

Yale University and Leica Microsystems Partner to Establish Microscopy Center of Excellence: Yale Welcomes Scientists to Participate in Core Facility Opening and Super- Resolution Workshops October 20 Through 31, 2014 September 30th, 2014

Nanomedicine

Non-Toxic Nanocatalysts Open New Window for Significant Decrease in Reaction Process October 19th, 2014

European Commission opens the gate towards the implementation of Nanomedicine Translation Hub October 16th, 2014

Nanodevices for clinical diagnostic with potential for the international market: The development is based on optical principles and provides precision and allows saving vital time for the patient October 15th, 2014

Tuning light to kill deep cancer tumors: Nanoparticles developed at UMass Medical School advance potential clinical application for photodynamic therapy October 15th, 2014

Announcements

HP Supercomputer at NREL Garners Top Honor October 19th, 2014

First Canada Excellence Research Chair gets $10 million from the federal government for oilsands research at the University of Calgary: Federal government announces prestigious research chair to study improving oil production efficiency October 19th, 2014

Ucore's McKenzie to Deliver Presentation to Rare Earths Conference in Singapore as Highlight of Fall 2014 Marketplace Schedule October 19th, 2014

Non-Toxic Nanocatalysts Open New Window for Significant Decrease in Reaction Process October 19th, 2014

Nanobiotechnology

Scientists Map Key Moment in Assembly of DNA-Splitting Molecular Machine: Crucial steps and surprising structures revealed in the genesis of the enzyme that divides the DNA double helix during cell replication October 15th, 2014

DNA nano-foundries cast custom-shaped metal nanoparticles: DNA's programmable assembly is leveraged to form precise 3D nanomaterials for disease detection, environmental testing, electronics and beyond October 10th, 2014

Charged graphene gives DNA a stage to perform molecular gymnastics October 9th, 2014

Nanoparticles get a magnetic handle: New method produces particles that can glow with color-coded light and be manipulated with magnets October 9th, 2014

NanoNews-Digest
The latest news from around the world, FREE





  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE