News & Events


Chemistry Weekly Seminar - Kelly Summers

Posted on 2018-01-09 in Events
Jan 19, 2018



Alzheimer’s Disease (AD) is among the most prevalent and debilitating of over 40 different incurable human diseases associated with misfolding of a specific protein or peptide.  Despite the large volume of research that has focused on understanding Alzheimer’s disease mechanisms and identifying possible treatments, the field remains divided on what causes the disease, and therefore, what aspect of disease pathology might be targeted to cure the disease.  One avenue of research hypothesizes that dyshomeostasis of brain metals such as copper, zinc, and iron is a key step in disease progression.  To this end, metal chelation therapy has been explored as a possible AD treatment.  Promising results with 8-hydroxyquinoline (8HQ) metal chelators, in both animals and humans, showed improvements in both cognition and memory.  Although these chelators have been postulated to restore brain metal ion homeostasis, their mechanism of action remains largely unknown.  To better determine the mechanism of action of 8HQ chelators, we investigated the solution structure of 8HQ Cu(II) complexes, as well as the Cu(II)-binding site in aggregated Aβ (one of the major components of plaques observed in AD brains), using synchrotron X-ray absorption spectroscopy (XAS).  We have also investigated metal ion distributions in mammalian brain tissue treated with 8HQs using Fourier transform infrared (FTIR) mapping and synchrotron X-ray fluorescence imaging (XFI).  Results from synchrotron techniques, and other more conventional techniques, suggest that PBT2 binds Cu(II) differently than other 8HQs.  Differences in Cu(II) binding may allow for different interactions with aggregated Aβ, which could have significant implications for the development of future disease treatments.

Back to News Listing

Related Articles

Special Seminar - Dr. Amy Stevens

Posted on 2019-02-08

Dr. Amy Stevens, Department of Chemistry, will present a seminar

Chemistry Weekly Seminar - PhD Candidate Amara Zuhaib

Posted on 2019-01-25

Amara Zuhaib, PhD Candidate, will present a seminar at 2:30 p.m. in Thorvaldson 271.

Special Seminar - Dr. Joe B. Gilroy

Posted on 2019-01-21

Dr. Joe B. Gilroy will present a Special Seminar at 10:30 in Thorvaldson 205A

Spinks Lecture Series - Dr. Chris Chang

Posted on 2018-12-17

Dr. Chris Chang, University of California, Berkley

Chemistry Weekly Seminar - Dr. Scott Murphy

Posted on 2018-12-17

Dr. Scott Murphy, Department of Chemistry & Biochemistry at The University of Regina, will present a seminar at 4:00 p.m. in Thorvaldson 271.