Genetically Predisposed to Alzheimer’s – Could You Handle the Truth?
It is one of the great moments in movie history, one of the many that involve Jack Nicholson. It is when Nicholson, playing Colonel Nathan R. Jessep, is on the witness stand and he is in the midst of a remarkable exchange with navy Lt. Daniel Kaffee, played by Tom Cruise.
Col. Jessep: You want answers?Kaffee: I think I’m entitled.
Col. Jessep: You want answers?
Kaffee: I want the truth!
Col. Jessep: You can’t handle the truth!
That scene immediately ran through my head when I read the recent news from Reuters regarding genetic testing for the gene associated with Alzheimer’s and other memory impairments. Ultimately, if I could be tested, would I want to be and emotionally, could I handle knowing the test results?
Could I handle the truth?
Most OK With the News
It seems that some in fact could handle the results.
In what was an enormous surprise to me, the findings from a group of American researchers indicates that the majority of those people informed that they carry a genetic risk of Alzheimer’s actually took the news well. Of course, that news also came as a shock to many professionals who have long thought that most people would not be able to psychologically handle such troubling news.
The gene in question, specifically the e4 version of the apolipoprotein E (APOE) gene, is known to be associated with an increased risk of Alzheimer’s disease. It is also associated with memory impairments in people without dementia.
In the study, people were randomly assigned to one of two groups. They either received the results of their APOE genetic test, carrier or non-carrier, or they were not provided their testing results.
People who were informed of their test results, the researchers found, did not have significantly more depression or anxiety than those who were not informed of their test results either immediately after receiving the test results or 1 year later. That was true regardless of whether they were in the subgroup of people found to carry the high-risk APOE e4 gene variant.
“Subjects were not immune to the negative implications of learning that they had an increased risk, but these feelings were not associated with clinically significant psychological distress,” Green and colleagues point out.
Conversely, in what would be a very intuitive result, being informed that one did not carry the Alzheimer’s-associated gene was in fact a great stress relief.
The Future
As science moves steadily forward, such testing options will soon become routine. We will undoubtedly have access to information our forefathers could never have imagined.
For those diseases where treatments are available, well, it seems like a no-brainer. Test me and when necessary, get me started on the path to wellness.
When it comes to the terrifying thought of a disease such as Alzheimer’s or dementia, one where there is currently no cure, only horrifying blackness, well I am not so sure where I stand.
I am simply not sure I could handle the truth.

1 comment
Thank you for this article. My Dad died of the disease after having it for approx. 13-14 years. He was 81 when he died. I am now 62 and I have decided to have testing to see if I am a carrier. I used to be frightened of knowing, but I seem at my age now, to have gained a real dose of courage, so on Mon. the 16th of Nov. I am seeing a neurologist
to begin testing. First memory testing, then a simple blood test that will prove if I am a carrier or non-carrier. Truthfully I feel it will be a relief to find out one way or the other.
Again, thank you for your article.
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