A couple days ago we had a March Babies birthday party here at the house. It’s a tradition my sister started a few years ago because so many of her friends have birthdays in March, and this is a great way to kill a bunch of birds with one shotgun. As I was sitting listening […]
More on the brain’s default network: The default network in the brain is considered a “second brain” because it turns on when the rest of the brain is at rest, and turns off when the rest of the brain is at work. Normally, that is. As people age, the default network is less and less […]
Yesterday I asked my sister—who is visiting from abroad—what signs of Alzheimer’s she sees in herself. She rattled off some memory problems such as forgetting names of acquaintances or not being able to place someone’s face when out of context. Nothing particularly Alzheimersy, just decreased mental sharpness. She then asked me if I was experiencing […]
Here is something frustrating about clinical trials of Alzheimer’s drugs: the FDA requires that such trials show an almost immediate improvement in memory tests of participants in order for the drug to get approval, disregarding improvement in other symptoms, and consequently derailing a possible cure for this dreaded disease. Here is why I think there […]
Deep In The Brain is a cerebral self-examination written by a philosophy professor who was riding the top of a success wave when he was diagnosed with Parkinson’s. Talk about the relationship between mind and brain! Here is one who, thanks to his training, steps outside himself to make an objective assessment of his behavior […]
The first thing you have to know about Mom is that she is the biggest sweetheart on the planet. She has always said “yes” to anyone who asked her for a favor or a meal or a ride or even cash. We used to berate her over some of these decisions. “Mom, you’re just enabling them to go get drunk,” or whatever. We’d rather keep our boundaries intact. Keep safe. Not Mom. She’d rather “do onto others” as Jesus wanted her to do–and let Jesus take care of punishment if the recipient abused the gift.
With that in mind, it puzzles me that these days, the word most frequently pulled out of her tiny residual vocabulary (5-10 words at present) is the word “no.”
“Mom, shall we get up?”
“Mom, isn’t this music pretty?”
“Do you want to go for a walk?”
Here’s the curious part. Her body language still says “yes.” So why the verbal “no”?
I’m thinking that this knee-jerk negation is her last recourse to individuality. Having lost most of what makes her a person, she is resorting to negation as a way to distinguish herself from others.
Think about it. “Yes” blends us into other people. It’s a unifying word. It accepts. It serves. It hugs and becomes one with the other.
“No” on the other hand, puts up a wall between the self and the other. It says, I am me and you are you and it’s going to stop there.
It’s Mom’s only way, I believe, to retain a feeling of self.
And that revelation changes how I look at the world. You wonder why some people just can’t play nice in the world arena; why they have to say “no” to constructive engagement; why they have to strap bombs around themselves and “no” themselves and other people into oblivion.
Perhaps it’s because those people feel that a “yes” will blend them into the will of the other–a will that is unacceptable to their idea of a healthy self. A ”no,” they feel, is the only way they’ll be seen.
Do you see what I’m saying? The ego’s boundaries collapse under yes. “No” is the last bastion of the tormented ego.
Now that’s what I mean. You read something about Alzheimer’s, and all of a sudden you see evidence everywhere that you’ve got it and that your life is over.
I’ve avoided reading Still Alice for years precisely because I knew it would send me reeling with the truth of my own “probable” early-onset Alzheimer’s. But I did finally pick it up, and, sure enough, suffered a major breakdown right about chapter three. Yikes! I do have it. Just like Alice, I forgot I was supposed to work on Friday, and when my sister called to remind me, I crumbled. It’s not just that I forgot. It’s that I forgot and didn’t have that nagging feeling telling me that I was forgetting something eating away at me. It was the peaceful forgetting that terrified me. Surely this doesn’t happen to a person unless they have Alzheimer’s. Ever. Right?
Is this forgetting normal or something more sinister? Is it stress from caring for Mom with Alzheimer’s and Dad with Parkinson’s (with a touch of menopause for me), or am I following in my mother’s footsteps?
The lucky thing for me is that I don’t have medical insurance–which means I can’t go to a doctor for a diagnosis. I say I’m lucky because, as we all know, it’s not so much the disease that hurts people, it’s the diagnosis. And it’s not just any diagnosis. Cancer, people rally around you. Alzheimer’s or any kind of mental illness, and the room empties out.
Shoot, you can have the disease for years, but as soon as you get diagnosed, that’s when the tazing starts. People just automatically take out their stigma-tazers and start shooting. And they think they have it set on stun, but really those stigma-tazers are always set on kill.
So my question is, what do you do when you read or hear about terrifying conditions to keep yourself from assuming yourself into that condition and absorbing the fear that is often marketed with it? How do you “keep your head, when all about are losing theirs”? (Kippling)
And once you’re diagnosed, how do you overcome all that tazing?
Chuck’s blog on early onset Alzheimer’s is, I think, a courageous way of dealing with one such diagnosis.
What is your way of dealing with the fear of Alzheimer’s–whether it’s diagnosed or imagined?
Deep In The Brain is a cerebral self-examination written by a philosophy professor who was riding the top of a success wave when he was diagnosed with Parkinson’s. Talk about the relationship between mind and brain! Here is one who, thanks to his training, steps outside himself to make an objective assessment of his behavior even as he battles the attachment he has to that self.
In this book, Helmut Dubiel analyses his response to the personal and social implications of his Parkinson’s disease. He does not blame or excuse. Rather, he tries to put his and other’s reactions in context of the overarching laws of social interaction.
There is pain in this book. There are lies and pity and anger and judgment. But mostly, there is acceptance of the facts of disease and an acknowledgement of man’s irrepressible will to live and to thrive.
Yesterday as I read this book to Dad, I noticed him fidgeting more than usual. I stopped and asked him what was the matter. He said, “It seems like you’re reading about me.” I explained that this was a philosophy professor writing about himself. Dad calmed back down and listened with interest. Dad doesn’t talk about his inner battles much, so this would logically be painful for him. But good. I think this was one of Professor Dubiel’s hopes–that through his honest self-examination, others would feel released from the need to hide from their disease and, in so doing, find relief.
I’ve often asked people, “Which would you prefer: to lose your body or to lose your mind?” Given that I live with one parent with Alzheimer’s and the other with Parkinson’s, this question has personal weight. In his book, Professor Dubiel clearly expresses his preference for holding onto the self despite the ostracism brought on by the physical distortions of Parkinson’s. Knowing you are being unfairly rejected is still preferable to knowing nothing at all. On the other side, in Still Alice the protagonist affirms this appreciation for the self when–in a lucid moment–she acknowledges “I didn’t meant to get this way. I miss myself.” The mind is a far greater gift than the body.
Of course, in the end, Parkinson’s takes the mind as well.
My take-away? Pray for a cure for both diseases; forgive my and others’ shortcomings; enjoy today.
Here’s a fascinating animation superimposed over a lecture by psychiatrist and writer Iain McGilchrist on the two hemispheres of the brain. You may have to watch it 15 times to really get it.
After writing my last post regarding the stress of caregiving, I had to drive somewhere, and in the course of the short trip, I caught a clip of a Haydn symphony on the radio. I don’t know how, but there are sections in there that make me feel as though this exhausted, shriveling heart of mine is actually quite expansive and able not only to cope, but to bring beauty out of the brokenness around me. You know how sometimes you see a scene or a photograph that makes you certain that the universe is true and right and good? Well, music does that, but with thrice the emotion. Music can rewire a frazzled or finished outlook into one of hope. And hope can take you a looooooong way down a very dark road.
All to say that music—in addition to being a fantastic tool for treating Alzheimer's—is a very inexpensive way to get your groove back when you’re done in from caregiving. Or from living a regular life-is-pain-highness kind of life.
To prove this, I'm giving you a little tool in this post that some people may not know about. The tool is called Pandora—an internet service that lets you create your own radio station online.
The extra cool thing about this service is that you can create multiple radio stations, all with different moods—colored by different genres or artists—to suit your changing needs. Sometimes I don't even know what my need is or what it is that will trigger a brighter outlook, so having multiple "moods" to choose from is very useful.
Cutting to the chase, here are four stations I created to get you started. Click on any one of them and follow instructions to log into Pandora. From there, you can tweak the station by "adding variety" (a specific music piece or musician) to the station. You can also "thumbs up" or "thumbs down" any piece that you hear, and the station will remember to pick similar music or not to play that piece in the future. Talk about tailored just for you!
So here goes—four different flavors for your listening pleasure:
Jazz. You know, the good stuff with Stan Getz and Louis Armstrong and Bobby McFerrin and Michael Buble…
This is a fusion of old hymns and contemporary Christian pop. Nice, especially for Sunday mornings.
My personal favorite: spicy Latin mix. Makes you want to jiggle and dance and go crazy! A great stress-reliever.
Classical is music to transport the soul.
A couple more tips: if you want to play this music off your sound system without leaving the kitchen table, you can buy a $4 wireless FM transmitter and send the station to your main tuner. You can also "send the station" to the radio that sits on your mother's side table in the bedroom while you’re working on the laptop in the kitchen. Just a whole lot of things you can do with Pandora!
Do have fun, and come back and post a station of your own creation if you dare!
A couple days ago a friend of mine called almost in tears: “I did such-and-such, and I’ve never done such-and-such before. Do I have early-onset Alzheimer’s?”
I laughed. “The thing about Alzheimer’s,” I said, “is that they say not to confuse normal aging with Alzheimer’s, and then they say Alzheimer’s hits long before any recognizable symptoms become evident, so you have to look for signs early on.”
So I want to know: are we to be concerned about Alzheimer’s as soon as we lose our keys for the first time, or should we just laugh it off and look at the bright side of life all through the aging process?
Recently, a new mini-test was developed for the easy detection of Alzheimer’s. It’s called the AD8. This 8-question test is supposed to bring a diagnostic tool into the hands of primary care doctors so that Alzheimer’s can be detected earlier and therefore treated more effectively.
The problem is, there is no effective treatment for Alzheimer’s yet. So what, pray tell, are we doing finding new ways to diagnose this disease when there is no treatment and when the disease itself is not even clearly defined?
When we first brought Dad to live with us, we set him up with a primary care doctor who ran him through the standard Alzheimer’s test: remember these three things; tell me the date; where do you live; what floor are you on; draw a clock that says three thirty; etc. Dad got every single question wrong, and the doctor proclaimed, “You don’t have Alzheimer’s.”
I wanted to laugh. I think it was relief that a doctor would buck the system and refrain from offering perhaps a true but useless diagnosis given the lack of any effective treatment.
Later, we took Dad to a neurologist who got through three of the standard questions and suggested he try Aricept.
We gave Dad the five-week trial supply. It profited him nothing.
I’m not saying that we should refrain from diagnosing diseases. From his neurologist Dad also got a diagnosis of Parkinson’s, and as I’ve pointed out in an earlier post, this diagnosis (though it came late in the progression of the disease) was tremendously helpful in understanding Dad’s behavior and in relieving his sense of guilt. The medication he took for Parkinson’s did him no good either, but the diagnosis itself was helpful—perhaps as much for us, his caregivers, as for him.
But Alzheimer’s is a tricky beast. There are some well-known Alzheimer’s victims like Richard Taylor and Dottie (of the Alzheimer’s Reading Room fame) who are now under fire as possible Alzheimer’s mis-diagnoses. How can anyone have Alzheimer’s for six or ten years and show no decline, or even show improvement over time? It is not the subject’s truthfulness that is questioned but the accuracy of the initial diagnosis (heaven forbid we should think Alzheimer’s can be stayed by sheer willpower—of the sufferer and/or caregiver. That would mean we don’t really need expensive meds).
Is diagnosis of value when there are so many causes of dementia that could result in a false positive? And are the statistics of any value when they are repeatedly misquoted? We keep using the phrase “there are 5.3 million Americans with Alzheimer’s” when the correct statistic is “5.3 million Americans with Alzheimer’s and other dementias“.
One last bit of datum against the usefulness of Alzheimer’s diagnoses: in the U.S., whites tend to get diagnosed and treated more frequently than Hispanics, African Americans, and Asians. Whites seek out professional medical care, while Latinos, African Americans and Asians with Alzheimer’s tend to stay home and be cared for by family. Yet whites with Alzheimer’s die sooner than their non-white counterparts.
If earlier diagnosis is helpful, where is the evidence?
Yesterday I asked my sister—who is visiting from abroad—what signs of Alzheimer’s she sees in herself. She rattled off some memory problems such as forgetting names of acquaintances or not being able to place someone’s face when out of context. Nothing particularly Alzheimersy, just decreased mental sharpness.
She then asked me if I was experiencing any unusual mental hyperabilities and went on to explain how she seems to have gained a fantastic ability to call up words she didn’t even know she knew.
Funny, I told her. I had this post saved as a draft when she asked me the question. The answer is yes, I’m experiencing this very same thing, and am curious to know if there is a name for it.
Is there such a thing as hyperphasia—the flip side of aphasia? The term hyperphasia exists, and it’s defined as an uncontrolled impulse to talk. But that’s not what I’m referring to. I’m referring to the mind’s sudden ability to pull up obscure words when common words won’t present themselves. Words so obscure that we had no idea we knew them.
I’m well acquainted with aphasia—the “tip of the tongue but it just won’t come” nature of language loss. I’m also familiar with another embarrassing result of gradual mental decline: the mind’s tendency to call up words similar in shape, but wholly different in meaning from the one the user wants. Try Googling “fairy schedule” next time you want to cross the Puget Sound to see what I mean.
But what is it called when the mind calls up unknown words that perfectly fit the context they were intended for? Does neurology study mental surfeits as well as deficits?
I told my sister that I’ve had arguments in my head over this new ability. One night, for example, I went to bed, and as I lay my head on the pillow a picture of our living room doorway came to mind, and with it the word “transom.” I immediately questioned myself:
“Transom? What’s that?”
“It’s the big piece that spans the top of the doorway, dummy.”
“How’d you know that?”
“I don’t know. I just know that it is.”
“You’re probably thinking of Hansom. And I think that’s a horse carriage, not a doorway.”
“No, I know hansom is a carriage. Transom is the door thingy.”
With that, I got out of bed and looked the word up in the dictionary: a horizontal crossbar in a window, over a door, or between a door and a window or fanlight above it
“OK, you were right.”
My sister laughed and said, yes, that’s exactly what goes through her brain.
So my question is, what is this newly acquired hyper-phasia called? And is it common to everyone as their minds begin to deteriorate?
Rose Lamatt recently sent me her book Just a Word: Friends Encounter Alzheimer’s—the true account of her best friend’s rapid decline after being diagnosed with Alzheimer’s, and of the author’s life as a caregiver. After reading (or should I say “crying”) my way through this book, I decided I had to recommend it to all my readers as well.
I read and liked Still Alice, but it doesn’t hold a candle to Just a Word when it comes to describing the wretchedness of Alzheimer’s and of caregiving and of life in a nursing home after home-based caregiving is no longer an option. Just a Word may not be as polished a work as Still Alice (my editor’s eyes kept making corrections until the story sucked me in), but this book will give you the real thing: Alzheimer’s with poop and bruises and the constant anguish of those trying to love and care for its victims (unlike the sanitized version in Still Alice).
In all my reading on Alzheimer’s, I have not found anything so powerful as this book to stir a desire to rid this disease from the face of the earth!
It’s a very painful fact that I miss Dad and that I wish I had spent more “being time” with him instead of dividing my time between being and being productive. As I’ve mentioned before, in hindsight, all you want is to be near the one you’ve lost just a few more minutes. Nothing else matters but being in the person’s presence and having them know you are there.
I want to do this with Mom, but Alzheimer’s presents a huge problem. Whenever I see Mom sitting alone, it kills me because she looks so terribly alone. So I go sit with her, and on a good day—most days—she is riveted with my presence. But the second I leave her sight—to fling clothes from the washer to the dryer; to use the bathroom; to make a cup of tea—she is completely alone again. And in those moments—from her perspective—she has always been and always will be alone. There is no memory of my having been in her presence all morning other than a few moments of necessary “productive time.”
I hate this disease. There is no sufficient quality time you can give someone with Alzheimer’s. As a caregiver, it feels like there is no neutral status for you as a human being: you are either benevolent or malevolent; sacrificial or selfish; worthy or worthless.
Alzheimer’s isn’t a one-man disease; it does a pretty good job of spreading the pain around.
Anyway, ever since my sister-in-law’s mother was taken to the doctor with signs of Alzheimer’s and discovered to have nothing but dehydration, I’ve been meaning to read up on how exactly the lack of water hinders brain function.
Here’s what I found about dehydration and the aging brain:
Not much—unless you count articles on websites trying to sell water filtration systems.
The fact that water makes up 70-80% of a nerve cell and transports both nutrients and wastes from neurons means it is essential for proper brain function all through life. That’s a given. What’s not a given is how much a brain has to be depleted of water to affect cognition.
Rigorous research on the topic of the brain and dehydration is limited. Even the “standard facts” about the body and water are all over the place: babies come out of the womb composed of 90% water; no, 78%; no, make that 70%. In adults, the proportion is 60% water for males and 55% for females. The consensus is 50-60% for adults in general. The brain is 60% water; nay, 90%. Whatever.
As for how much water you need to drink on a daily basis to be properly hydrated, oy, there is no consensus. For years I’ve been hearing “8 cups a day.” No allowance for a sedentary life or for someone with a diet of fruits and vegetables (which are high in water content); no penalty for eating junk food (which would increase the need for the detoxifying properties of water) or for spending days cooped up near a wood stove.
One article quoted the Mayo Clinic as saying that “the average adult loses more than 80 ounces of water every day through sweating, breathing, and eliminating wastes,” and therefore you’d have to drink 10 cups of water/day to rehydrate. I searched for the quote on the Mayo Clinic site and didn’t find it. Instead, I found a recommendation for 6-8 cups of water per day.
Suppose you take the most conservative recommendation of 6 cups per day–do you follow that? I don’t think I’ve ever gone one whole week drinking that much per day.
It has been estimated that 75% of Americans are chronically dehydrated. OK, that figure is questioned. But it seems to be a fairly hard fact that “among people over 65, dehydration is one of the most frequent causes of hospitalization.”* Understandable: throw in a bit of incontinence, and fear of hydration soars. Also, some medications are diuretics, and after 50, the body loses kidney function and is less able to conserve fluids.*
But how bad is dehydration for your brain?
According to Lumosity, when your body lacks water,
brain cells and other neurons shrink and biochemical processes involved in cellular communication slow. A drop of as little as 1 to 2% of fluid levels can result in slower processing speeds, impaired short-term memory, tweaked visual tracking and deficits in attention. With proper hydration however, neurons work best and are capable of reacting faster.
But pinning down the exact link between hydration and cognitive function is tricky in the lab. From Hydration and Human Cognition:
Although adequate hydration is essential for optimal brain function, research addressing relationships between hydration status and human behavior and cognitive function is limited. The few published studies in this area are inconclusive and contradictory. The impact of variations in hydration status, which can be substantial as humans go about their daily activities, on brain function and behavior is not known and may impact quality of life.
From PubMed’s Hydration and Cognition: a Critical Review and Recommendations for Future Research: “The limited literature on the effects of dehydration on human cognitive function is contradictory and inconsistent.” The monkey wrench in research here is given as confounding factors:
Confounding factors, such as caffeine intake and the methods used to produce dehydration, need to be considered in the design and conduct of such studies. Inclusion of a positive control condition, such as alcohol intake, a hypnotic drug, or other treatments known to produce adverse changes in cognitive performance should be included in such studies. To the extent possible, efforts to blind both volunteers and investigators should be an important consideration in study design.
On the Mayo Clinic site, a Dr. Lette finds that “there’s no scientific evidence that drinking large amounts of water is good for one’s health.” The recommendation in this article is to drink when you’re thirsty, and that’s enough.
My question is, does the lack of scientific evidence mean there is no scientific proof or merely that there is no motivation to research the topic to obtain the evidencef? Who, after all, would fund research into water being fundamental to the health of the aging brain? Not the pharmaceutical industry. If you could avoid dementia by being continually hydrated, you wouldn’t need pills to fix dementia. Why would any self-respecting drug company fund that finding? And if it takes a lot of money to work through all the confounding factors, who’s going to pay for it?
The thing is, when the anecdote about my sister-in-law’s mother is not even rare, it makes me wonder how many cases of Alzheimer’s are checked for a history of dehydration. I don’t mean just the over-the-weekend kind of dehydration, but long-term, chronic shortage of water.
As with Mom. The list of things Mom was doing “right” for her aging brain is stellar: she was highly educated, spoke multiple languages, was given to prayer and meditation, was active in the community, etc., etc. Yet she succumbed to complete dementia in her early seventies! Could it all have been due to her severe distaste for water? I mean, she hated water–would gag if she drank it straight from the tap. Could her present dementia have been prevented by a regimen of 4+ cups of plain ole water daily?
I hate to look at the “what if” from Mom’s point of view, but for our generation and beyond, it needs a good deal more consideration than we’re giving it.
What do you think? Am I grasping at straws? (I suppose that’s OK as long as the straw is propped inside a nice glass of water, right?).
Water and Brain Function
Water in the Body”
You’re Not Demented, Just Dehydrated
Dehydration and Cognitive Performance
Hydration and Cognitive Function in Children
Nerve and Muscle Cells
Impaired cognitive function and mental performance in mild dehydration
Yesterday I came across Lewis Carroll’s “Jabberwocky” poem in Alice in Wonderland (you can download the whole book for free at Gutenberg).
I’ve always loved how Carroll made nonsense words sound like language. But what got me this time around was Alice’s response, and the parallel of that with how I feel about “talking” to Mom.
‘Twas brillig, and the slithy toves
Did gyre and gimble in the wabe;
All mimsy were the borogoves,
And the mome raths outgrabe.
‘Beware the Jabberwock, my son!
The jaws that bite, the claws that catch!
Beware the Jubjub bird, and shun
The frumious Bandersnatch!’
The Alzheimer’s Research Paradigm
If you’ve every studied philosophy of science, you’ll recognize that current research in the field of Alzheimer’s Disease is battling paradigms. The funny thing is, the Alzheimer’s field hasn’t even reached the level of robust theory, yet there is strife in the ranks of researchers fighting over the direction inquiry should take:
“Kill the amyloid plaque!”
“No, viva le beta amyloid!”
“Forget amyloid. It takes tau to tangle.”
“Ha! The biomarker emperor has no clothes!”
“Wait. Isn’t it all about insulin resistance?”
“Nix all the above. Just get quality sleep, and you’ll be fine.”
If you think this is funny, these basic statistics will sober you up:
* As of 2010, there are 5.4 million people in the US with Alzheimer’s
* Almost half the people over 85 have Alzheimer’s
* When the baby boomers come of Alzheimer’s age, the costs of care for this disease alone will cripple Medicare and Medicaid
* Federal funding for research into a cure is dropping fast
* YOU will be paying for either your own care or for that of a loved one if a cure is not found. And YOU will either be grossly neglected when this disease hits you, or you will die the slow death of stress from caregiving for someone else.
Bottom line: research into Alzheimer’s—its cause(s), treatment, and cure—is alarmingly urgent and terribly underfunded.
There are plenty of people out there who believe we shouldn’t put money into research at all, because so far nothing has been found to stay the course of “Alzheimer’s” dementia, and the whole drug industry is just a ploy to line the pockets of the pharmaceutical fat cats. If you’re in that group, you can stop reading this now. If, however, you would really like to see your Mom or Dad or Yourself able to have a meaningful conversation with your loved ones and know whom you’re talking to—hopefully for the rest of your life—read on, because the question isn’t whether or not to research. The question is where do we put our research dollars?
Not a simple answer when you consider that the reigning paradigm for Alzheimer’s research is serious question.
Let me explain with recent findings from my own readings:
A couple weeks ago I attended a Cure Alzheimer’s Fund webinar presented by Dr. Rudy Tanzi (of Massachusetts General’s Institute for Neurodegenerative Disease) on Alzheimer’s research and drug development.
Beta Amyloid: Clues From Our Genes
Dr. Tanzi’s group is in the “clues from our genes” pool (looking at the genes as a starting point rather than, say, looking at diet first). The dominant belief in this pool up until recently is that beta amyloid plaque accumulation in the brain, followed always by tau tangles, are the two main biomarkers for Alzheimer’s Disease. That is, where there is Alzheimer’s, there is an overabundance of beta amyloid plaque and destruction caused by tau in the brain. Also, a higher load of plaque correlates with a higher degree of dementia (see slide from webinar). Plus, as this accumulation progresses and moves to different parts of the brain, there is a parallel manifestation of symptoms.
The connection seems pretty obvious. And Dr. Tanzi certainly has the credentials: back in the 80’s when he was studying Down’s Syndrome, he realized they had isolated the gene responsible for amyloid “plaque” deposits in the brain, and—given that all Down’s Syndrome sufferers end up with Alzheimer’s—thought to make a link between this gene and other cases of Alzheimer’s. From there it was one success after another, with Dr. Tanzi participating in the discovery of three of the four known gene mutations causing early-onset Alzheimer’s (these are the genes that guarantee you will get Alzheimer’s). Granted, early-onset AD accounts for only 5% of Alzheimer’s cases, but it does give weight to the conviction that Alzheimer’s has a genetic link. More recent studies looking at family history suggest that up to 80% of Alzheimer’s cases are genetically influenced (see slide from Tanzi’s presentation).
The presentation is convincing enough until you start reading the commentary in the field and start learning that current direction of research into the causes of Alzheimer’s is highly questioned.
Researchers coming on the scene today, for example, would argue that the plaque theory is circular reasoning. You can’t say that plaque leads to Alzheimer’s if you first define Alzheimer’s as “dementia with plaque.” And when your theory states that plaque accumulation leads to Alzheimer’s, the automatic null hypothesis is that where there is plaque (in copious amounts) you will always find dementia, and when plaque is cleared, dementia will go away.
But this has not born out. It is now known that “roughly one-third of all elderly adults have such plaques in their brains yet function normally.” It has also been proven that the elimination of beta amyloid plaque (achieved by the “Alzheimer’s vaccine”) does not cure dementia.
Thus the paradigm shake-up. Why continue with the biomarker research when the facts don’t bear an airtight connection? Is the “clues from our genes” group too heavily invested financially and psychologically in this line of research (as some suggest) to give it up as dead?
Dr. Tanzi responds to these fears in his recent presentation. He didn’t use the word per se, but nuance was the main come-back. All theories undergo refinement, and this plaque-causes-dementia theory is no exception. Looking at the genes may have lead to wrong conclusions in the past, but there are still some pretty interesting clues to follow going forward.
Here is a crude rendition of the protein-level pathology in Alzheimer’s:
Beta amyloid (Aβ) is cut off from its precursor protein; Aβ links to other ab in small clusters; Aβ kills nerve synapses; Aβ accumulates into plaques
For the past twenty years, research has focused on improving the symptoms of dementia by eliminating the final clusters of beta amyloid (plaques). Looking at the little diagram above, different drugs targeted the beta amyloid at different points on the linear progression toward plaque: Flurizan targeted the process that snipped the Aβ off its precursor protein; Alzemed tried to block the aggregation of Aβ; Dimebon was designed to protect the neurons from Aβ; one drug successfully immunized the brain against Aβ (resulting in clearance of plaque from the brain, inflammation in the brain, and progressive dementia); and finally, drugs were developed (Aricept and Namenda) to act at the symptomatic level.
None has had any significant effect on the brain’s function in memory tests.
Tanzi’s response? Perhaps the reason drug trials fail is that the potency of the drug is off—either too weak or too strong—and funding for a subsequent trial is cut off. Or perhaps researchers need to stare at the diagram a little longer and find out whether beta amyloid needs to be left to do some mission, then cleared before it wreaks havoc on the synapses.
Which is exactly what happened with Dr. Tanzi—a little stroll through the lab, a light-bulb moment, and Tanzi discovers that beta amyloid kills bacteria and yeast like nobody’s business. Beta amyloid is a good guy? The plaques themselves are just “a field of bullets” left over from some major battle?
Definitely worth an investigation. A new direction.
To Fund Or Not to Fund
So it turns out that looking at clues from the genes is not a paralyzing avenue of research after all. Is the paradigm really dead, or just needing refinement? In the new direction of Alzheimer’s research, Dr. Tanzi’s findings have lead to a more recent drug (PBT2) that takes the “antibiotic” role of beta amyloid into account as it tries to clear its toxic leftovers. Do we pull the plug on funding just when the story is getting really interesting?
The competition out there is fierce. You would think from some of the stinging accusations aimed at the “old school” research that funding for groups such as Tanzi’s should be questioned. Yet, as the webinar pointed out, “the vast majority of our knowledge about AD and AD drug discovery has been based on studies of the four known AD genes over the past two decades.” That’s old school success.
On the down side, “about 70% of AD genetics is unexplained by the four known AD genes.” On the further down side, it’s going to take A LOT of funding to find the genetic culprits for the rest of Alzheimer’s cases. And genetics is still only one of several approaches to studying this disease! (Besides, paradigms don’t die until a better one supersedes it, and there is no airtight theory out there yet).
Do we put all our eggs in one basket? What if there aren’t enough eggs to spread around to the different baskets?
Frankly, I don’t know the answer to this question.
There are a couple good reasons I think the Cure Alzheimer’s Fund group is worth supporting, though. One reason is the Cure Alzheimer’s Fund website itself. The Internet has plenty of faults, but it also has the advantage of open criticism. If you look at the comments sections of one of the papers put out by Tanzi’s group on the Alzheimer’s Forum, you’ll see an open debate. It’s free collaboration. It’s crowdsourcing at its best. I think it multiplies the value of your funding dollar.
Another reason is that I’ve suspected my own mother’s caseStay tuned for a post on this topic to be of possible bacterial/fungal origin and am dying to see what this group finds in their new line of research. The only thing I fear is the psychological barrier to this new approach.
A Taboo Research Project?
To be specific: the two agents being considered by Tanzi’s group as possible aggressors in the beta amyloid battle are Chlamydia and Candida Albicans. But looking at Candida Albicans as a possible cause of anything is TABOO in mainstream medicine. Just browse the comments section of a recent article in the New York Times about Candida Albicans, and you’ll see what I mean.
Will Tanzi’s group have the courage to fight all the enemies of research at the same time: tainted motives (the desire for personal glory), psychological entrapment (continuing in a line of research simply because it’s been going on for so long), and mainstream opinion about what is acceptable research (we do not look at X)?
I guess it’s going to take a lot of money to find out. Which brings us back to the basket issue.
Do we have to duplicate Alzheimer’s research at the Federal and State levels? The state of Texas, for example (being one of the top three states that will go broke paying for Alzheimer’s care in the future), is spreading its research egg money into several baskets:
* Prevention and Brain Health
* Disease Management
Why repeat this with every state, plus private groups on the side? Is there a way to get more collaboration between research groups? The well of needed funding is infinitely deep, so why are we digging multiple wells?
I guess part of the answer is that individual motivation for research (even if it is for personal glory) is the strongest kind you can find, and therefore the best engine for finding a cure. And likewise, education plus individual conviction will drive donations. There is certainly enough information available at one’s fingertips to give no one who is interested in a cure an excuse to sit on the sidelines!
So what will you do?
Because where there is a will, there will be a way to end the increasingly long goodbye.
For further reference:
Beta-Amyloid: An Antibiotic? (with a slew of interesting comments)
Alzheimer’s Brain Tangles Offer Clue To Worsening
Alzheimer’s Disease: No End to Dementia
New Potential Cause of Alzheimer’s Disease Detected
Alzheimer’s Scary Link to Diabetes
Follow the Alzheimer’s Breakthrough Ride journal
An video report on several intriguing theories of Alzheimer’s.
This week I started wearing the monovision contact lens that I got three years ago. This is the lens that you wear in one eye to correct for reading while leaving the other eye free to focus on things in the distance.
I tried this lens years ago but found it unacceptable. Everything was at once blurry and sharp, and I couldn’t tolerate the tiniest bit of blur in my vision.
I realized it was a mental adjustment—I would have to learn to choose the sharpness of one eye over the blurriness of the other at any distance until all I saw was sharpness. But I was impatient and gave up on the adjustment period, resorting instead to donning and doffing reading glasses when in need.
Now my close-up vision has gotten so bad that when I tried the monovision lens this time, my mind was quite happy to accept the gift of semi-sharpness without the need to scout around for glasses. It took a very short time, in fact, for my brain to adjust and see all things in focus at all distances.
Remarkable how the brain can do that.
I learned a similar lesson in life with the attitude of gratitude. I was going through a very stressful, heart-rending period when nothing seemed to be “working” for me. One day I plopped down on the floor and began to say “thank you” for every part of my life. It was a turning point in my stress level. I began to see not problems but challenges; not curses but blessings. And what a difference it made!
Alzheimer’s and other devastating diseases, I’m noticing, can be lenses that change the way we see life; they change what we think is important; they bring into focal clarity the gift of family, friends, community, connection. I’m amazed as I surf the blogs written by sufferers and caregivers to see the softness that takes over when anger ends. I’m amazed, for example, with Michael J. Fox’s attitude toward his Parkinson’s, calling it a “liberating” gift. I’m touched by the may bloggers who share of the immense struggle of caregiving and the eventual gratitude it produces in them.
It’s always a choice the person makes to see disease differently. Or rather, to see the value of the person despite the disease.
In this season of Thanksgiving, it is good to see the change that Alzheimer’s and other diseases have brought to our self-centered culture.
So, thank you to all of you who write and share of your struggles, forming a new community that chooses to rise above bitterness and embrace even the bleakest, darkest days of life for the goodness they produce.
I don’t know how much I’ll be able to write about Parkinson’s here. If I write about Parkinson’s, it’ll be about how it’s affecting Dad. And if I tell you the things this disease makes Dad do, you won’t have a pretty picture of Dad. And that ain’t fair.
Here’s just a little, white example. A couple days ago Dad had to go to the bathroom. He asked what direction the bathroom was, and I pointed it out. He walked to the bathroom door, then asked me again where the bathroom was. I told him he was standing at the bathroom door. He said, “And now what?” I explained that he had to walk over to the toilet. He was standing four feet from the toilet and asked, “Where?” I put pressure on his back and gently led him to the toilet. He said, “And now?”
I had to help him through the whole process.
The concept “how to back up” seems to be the biggest obstacle his brain has to overcome. He can’t figure out how to back up to the toilet before sitting, or once he’s in a chair, how to back up from the edge. The same when he goes to bed.
My sister and I try “scoot back, Dad.” He scoots forward even though he’s already on the edge of whatever. We try changing the cue. “Put your back here” (while patting the back of the chair). Nothing. “Lift your bottom and move it back.” Nothing. Yesterday I tried switching languages. I said, “Put your butt in reverse” in Portuguese. He couldn’t do it, but he did double over laughing. And that’s a huge gift.
But these gifts are hard to come by. So I probably won’t write much about Dad and his Parkinson’s. I’d rather you see the adventurous man who loaded up his wife and eight kids in a van and drove from New York to Bolivia in 1966. This man taught us all kinds of good things about nature and God, and I’d rather not leave you with a highly unbalanced picture of who he is.
How much time is enough time? We know we are mortals and we know life is but a breath. In light of eternity, we calculate that 100 years passes as quickly as twenty. Yet, given anything less than 100, and we say we’ve been “cut off.”
My big, strapping brother-in-law lays in the hospital right now, fighting for each new minute after a two-year battle with brain cancer. He is tired, and he is ready to rest. We would prefer the doctors find a cure and make him bounce back, but we want to let him go.
Throughout this whole battle, Ken’s mind worked around his brain to bring humor and gratitude to his situation. He firmly believes God’s purposes can be worked through the worst tragedies, and it is amazing to hear how his concerns were always for the eternal perspective he could bring to the waiting room, the surgery room, the recovery room.
Ken’s life may be cut short in our view, but it has been a life well-lived, and that’s more than a lot folks can say. Socrates said that an unexamined life is not worth living; an anonymous person added that an unlived life is not worth examining. I can vouch for Ken that he’s had a life worth examining.
April 26, a.m.: Ken had a brain hemorrage last night and is on life support. Awaiting a family gathering to let him go.
April 26, 7 p.m. Goodbye Kenny. From someone who was present at his bedside: ” just wanted to write and let you know that Ken’s passing was beautiful in the midst of family and hymns and Scripture. The more that Daniel read and Ruth recited the easier his respirations…and soon he just passed on.”
We already miss your booming laugh, your exhuberant living, and your unwavering faith. Save us a place at the banquet table, and we’ll see you in the morning.
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