Allison Elliott-Shannon

By

College: Medicine

A Genetic Answer to the Alzheimer's Riddle?

Published: Aug 14, 2013

LEXINGTON, Ky. (Aug. 14, 2013) — What if we could pinpoint a hereditary cause for

Alzheimer's, and intervene to reduce the risk of the disease? We may be closer to that goal, thanks to a team at the University of Kentucky. Researchers affiliated with the UK Sanders-Brown Center on Aging have completed new work in Alzheimer's genetics; the research is detailed in a paper published today in the Journal of Neuroscience.

 

Emerging evidence indicates that, much like in the case of high cholesterol, some Alzheimer's disease risk is inherited while the remainder is environmental. Family and twin studies suggest that about 70 percent of total Alzheimer's risk is hereditary.

 

Recently published studies identified several variations in DNA sequence that each modify Alzheimer's risk. In their work, the UK researchers investigated how one of these sequence variations may act. They found that a "protective" genetic variation near a gene called CD33 correlated strongly with how the CD33 mRNA was assembled in the human brain. The authors found that a form of CD33 that lacked a critical functional domain correlates with reduced risk of Alzheimers disease. CD33 is thought to inhibit clearance of amyloid beta, a hallmark of Alzheimers disease.

 

The results obtained by the UK scientists indicate that inhibiting CD33 may reduce Alzheimer's risk. A drug tested for acute myeloid leukemia targets CD33, suggesting the potential for treatments based on CD33 to mitigate the risk for Alzheimer's disease.  Additional studies must be conducted before this treatment approach could be tested in humans.

 

Authors on the paper, titled "CD33 Alzheimer's Risk-Altering Polymorphism, CD33 Expression, and Exon 2 Splicing" are Manasi Malik (lead author), Steven Estus, James F. Simpson, and Ishiti Parikh, all of the UK Department of Physiology; Bernard R. Wilfred and Peter Nelson of the UK Department of Pathology, and David W. Fardo of the UK Department of Biostatistics.

 

MEDIA CONTACT: Allison Elliott-Shannon, allison.elliott@uky.edu

 

 

 

 

109222821.jpg
December
 
1
Resumes and Cover Letters
Circle of Love Gift Return
Mon
2
UK Guitar Studio
Circle of Love Gift Return
Tue
3
Networking and Job Search
Internship Info Session
LNFS Presents: Wayne's World
Study Sounds: Classical Concert
Wed
4
LNFS Presents: Frozen
Ballet Music of Tchaikovsky
Circle of Love Gift Pick-Up
Live Screening of Orion Spacecraft Re-entry
Massage on the Go
Thu
5
LNFS Presents: Winter's Bone
LNFS Presents: Gremlins
Open Studio
Circle of Love Gift Pick-Up
Fri
6
Snow Skiing @ Perfect North Slopes
Sat
7
Free Holiday Shopping Shuttle to Fayette Mall
Sun
8
Undergraduate Research Information Session "How to Find a Faculty Mentor"
Mon
9
Job Club - Identifying Your Skills
Paws for Stress Relief
Tue
10
 
Wed
11
 
Thu
12
Last Day of Classes
Fri
13
 
Sat
14
Free Holiday Shopping Shuttle to Fayette Mall
Finals Treats
Sun
15
Final Exams
Crunch Brunch
Mon
16
Final Exams
Jazzy Holiday Concert
Tue
17
Final Exams
Caregiver Support Group
Wed
18
Final Exams
Thu
19
Final Exams
End of 2014 Fall Semester
Fri
20
 
Sat
21
 
Sun
22
 
Mon
23
 
Tue
24
 
Wed
25
 
Thu
26
 
Fri
27
 
Sat
28
 
Sun
29
 
Mon
30
 
Tue
31
 
Wed
 
 
 
Jan 14
Bicycle Trivia 01/14/2015

Wed, 01/14/2015

Fri, 01/16/2015

Wed, 01/21/2015

Reset Page