Showing posts with label antidepressants. Show all posts
Showing posts with label antidepressants. Show all posts

Sunday, December 2, 2012

Makes my brain explode -- but now it can be repaired

It's almost impossible to discuss this article without leaping out of the chair and waving my arms around, squealing with the sheer thrill of its deep and wide implications for treatment and understanding:

Precisely Engineering 3-D Brain Tissues

Using a 3-D printer, transparencies, and binder clips, these wunderkinder can create neural tissues that mimic the cellular proportions and relationships of real, living brains.

On this basis, here are some possibilities discussed in the article:
  • Watch how brain tissue responds under different circumstances, leading to new understanding of brain growth, disease progression and structure-dependent brain abnormalities.
  • Repair damaged brain tissue. With historic rates of traumatic brain injury in the most productive age group, this alone is world-changing.
  • With samples from patients, custom brain cultures can be grown, and drugs tested against them, targeting drug treatment that works on the first trial. This saves people who need CNS-affecting drugs countless weeks and months -- even years -- of untold misery, as different drugs get pushed through their systems in an effort to find one that works.

Harvard Med and MIT at their collective finest.

The great challenge, of course, is getting this OUT of the lab and INTO the populations that need it. I hope it's not kyboshed by those whose profits depend on the current ineffective, inefficient, expensive, and unspeakably brutal systems of CNS treatment.

Let good medicine prevail.

Friday, June 1, 2012

CRPS, ANS dysfunction, and chronic vertigo

The central nervous system is bathed in fluid. This fluid provides a buffer against shock, as well as providing a good medium for the transmission of chemical signals. (Electrical signals are handled by the neurons.) The central nervous system is extremely sensitive to dehydration, which is why headaches are so common: most people are somewhat dehydrated. We consider ourselves too busy to drink water and whizz it out again.

Water is also the main ingredient of blood and lymph. These two essential fluids bring nutrition to the cells, transport chemical signals such as hormones and regulatory signals, and carry away cellular garbage. When there’s not enough of them, that doesn’t happen very well. More garbage piles up in the tissues, aging happens faster, disease trends faster, our muscles get stiffer, it’s harder to recuperate from injuries and illnesses, our sex lives suffer, and we just don’t feel as good.

With that in mind, not having the time to drink in water, process it through, and whizz it out again doesn’t really make sense, but a lot of us are really attached to that idea.

Reality checks

One of the really ducky things about diseases like CRPS, especially when there is strong autonomic involvement, is that normal quantities of fluids (and vitamins, proteins, and other nutrients) are often inadequate to our unusual metabolic needs. It may be possible for a basically healthy person to meet all their needs with three good meals and three or four liters of water per day, but for systems so consistently under siege as those with CRPS, it may be impossible to meet metabolic needs within these (otherwise very reasonable) parameters.

I have several friends with terrible vertigo, due to autonomic dysfunction in CRPS. This isn’t the, “I held my breath too long,” kind of dizziness. This is the kind of dizziness where you can’t keep your feet under you, you feel like you’re going to throw up, and it JUST WON’T QUIT.

The mechanism behind this has only been researched recently. It's not very well understood. I'm hoping for an informative comment from an expert on this...

What’s happening (partly) is that the vessels, which are directed by the autonomic nervous system, are flopping open too much. This means that the normal amount of fluid in the blood, lymph, and cerebrospinal fluid has to fill a space that’s considerably larger than normal. What you get is a type of hypovolemic shock, where the brain and major organs simply can’t get enough nutrition, oxygen, and garbage collection.

This normally happens on a short-term basis, after some assault on the system; normally, it’s either corrected quickly, or the person dies.

There are very few instances where this happens continuously over time, but with CRPS, some people have to live with it. It can make doing anything impossible, and if you try to imagine, just for 5 minutes, what it’s like to be that desperately dizzy and try to do anything -- even get a fork to your mouth without bloodshed -- you’ll see what I mean.

Sometimes, these symptoms can be somewhat reduced. There are pharmaceutical and mechanical approaches, each with its drawbacks and benefits. Since doctors (and many patients) tend to think in terms of pharmaceuticals first, let's start there.

Pharmaceutical management

Whenever you think in terms of disease and pharmaceuticals, it's important to keep in mind that:

  • Every system is unique.
  • Every system with CRPS is even stranger.
  • Unless you're a doctor getting a visit from a pharmaceutical rep, there is no such thing as a free lunch. Everything you take in affects your whole system. With our systems under siege, it behooves us to be mindful of our chemistry.
NB: This is not intended to diagnose, treat, or cure any disease. Consult your physician with any questions, and if your doctor can't give you a credible answer, get a referral to someone who might be able to.

Vasopressors, which can help restrict blood vessel size, have mixed results. They depend on the regulatory system being able to work somewhat, which is problematic in CRPS. Moreover, they have their own side effects, and given what a cocktail of medications most people with CRPS are on anyway, this can be quite noticeable. It has to be handled on a case-by-case basis.

Anti-dizziness pills, such as Atarax, affect the central nervous system and tend to make people sleepy and goofy. They are related to antihistamines and acid-suppressing medications (H2 inhibitors), and for those with hotwired immune systems and the nutrient assimilation problems common in chronic CRPS, they're not without side effects. Moreover, because they address only the generic mechanism for dizziness, but not the particular mechanism for CRPS/ANS vertigo, they don't necessarily help in these cases. Also, case-by-case basis.

Some SSRIs, typically used as antidepressants but extremely effective for nerve pain, can also provide support for the ANS. There is additional benefit to the use of SSRIs, because of their assistance with the nerve pain component of CRPS; when they can also improve the autonomic nervous system, it's a big deal. Naturally, SSRIs being the idiosyncratic category that they are, it can take a few tries to find the one that works best in each person's system. As I learned the hard way, getting the dose right can be a long and interesting task, given the idiosyncratic nature of our systems.

Mechanical management

Mechanically, it’s possible to increase blood volume by taking in lots of fluids, even if you already drink “enough.” “Enough” is a relative term, and what’s “enough” for a person with a normal autonomic nervous system may be “completely inadequate” for somebody with vertigo due to CRPS.

Blood pressure is a complex system, involving more than just fluid, vessels and the brain. Maintaining electrolytes helps contribute to a healthier fluid balance, and towards that end, sometimes doctors suggest increasing your salt intake. That only raises your blood pressure when you already have a predisposition to high blood pressure, so it may not be obviously useful; however, adequate sodium is important in maintaining renal function and supporting potassium levels.

Potassium is another key electrolyte, along with magnesium (found in Epsom salt), calcium, and bicarbonate. It doesn’t take much; four or five of the smallest grains of Epsom salt, stirred into a glass of water, can make a noticeable difference when you are magnesium depleted. Also, it usually makes the water taste better.

It’s easy to tell when you’ve taken too much, partly because it doesn't taste good, but especially when it gives you the runs. Less is generally better than more!

Bicarbonate is better managed by eating plenty of vegetables, rather than trying to supplement and get the dose just right. Having an overly alkaline system doesn’t feel very good, either.

Calcium and magnesium are present in food, especially if you’re eating plenty of nuts and leafy greens. If you have CRPS, you really want to eat plenty of nuts and leafy greens! They provide so much in the way of A and B vitamins, antioxidants, minerals (which support cellular processes and regulation), healthy fats (which help your body absorb your nutrients and protect your nerves), fiber, digestible protein (which helps your body absorb the calcium), and so much else of what your body really needs.

Activity, even horizontal activity, even just stretching out gently in bed, provides the body with much needed prompting about how to keep things moving. It keeps your muscles loose, so that your body is more comfortable to live in; it also activates sensors in your joints which communicate with your body’s regulatory mechanisms, and this helps with maintaining blood pressure (one can only hope it helps enough.)

Any movement is better than no movement.

Changes in position should happen slowly, which is terribly frustrating, but it’s going to take as long as it takes. If your body doesn’t get to move, it forgets how to handle itself in movement. This becomes a negative feedback loop.

So, keep moving, even if you’re not moving in any way that the doctor would recognize. Frankly, most doctors are somewhat limited in their ideas of what constitutes exercise. Most of them have no trouble walking from the car to the office, let alone from the bedroom to the kitchen.

Don’t let perfection assassinate your drive towards improvement. Do what you can, and don't sweat the rest.

  • If you can’t run around the park, walk around the block;
  • If you can’t walk around the block, practice ballet or t'ai chi with one hand on the back of the sofa;
  • If you can’t do that, fire up YouTube and do chair qi gong or chair yoga;
  • If you can’t do that, stretch out gently in bed, and do range of motion exercises. (This is a wonderfully pretentious term for moving each limb all the way up, then all the way down; all the way in, then all the way out.)
There is always something you can do to keep your joints active.

Moving your joints sends a message to your regulatory centers that they need to pay a little more attention to your blood pressure. That’s why it’s important to stay active. Our regulatory systems are screwed up enough; we need to keep them gently tuned, and be persistent about it, even when it seems absurd to do so. The habit of activity will serve you well for the rest of your life.

I'm aware that there are some herbs that have tonic effects on blood pressure and possibly the ANS. I would love to learn more about that.

Assume there is a future, and that what you do, even little things, can change how it goes.

That’s a good general policy, anyway. Especially with CRPS.

While I’ve known all this for many years, applying it to CRPS has been an education. When I’m able to focus a little longer, I’ll put together some references. Meanwhile, any of you who have references, either to support or contradict any of this, would be very welcome to post them in the comments.

I look forward to better science and better medicine for chronic vertigo in CRPS. It's so thoroughly disabling, yet so thoroughly underrated.

Saturday, March 31, 2012

Link between fast food and depression confirmed, not clarified

This article states that around 5% of non-depressed people go on to develop depression when they eat junk food of the baked-goods variety (like croissants, pecans spins and Twinkies) or fast food.

Link between fast food and depression confirmed

The authors assume the link is causal (fast/junk food causes depression), but I don't see why. Many people only eat fast food and carb-rich junk food when they're already depressed and want the temporary solace (and serotonin/insulin hit) of comfort food. It might be smarter to eat more trail mix, olives and avocados when we're depressed, and leave out the Twinkies, but the fact is they cost more.

So, is the fast food/junk food self-medication for depression, contributor to depression, or both? It makes more sense to view it as a sign that something is amiss, rather than leaping to the conclusion that fast/junk food itself is the problem.

When people need to self-medicate, they're going to find a way. And at least fast food is not going to cause as many accidents as alcohol, as much ruin as harder drugs, or as much disease as compulsive sex -- all of which are popular forms of self-medication for depression.

Something to consider... We need not leap right to the blaming mentality. We can treat these changes in habits as useful clues instead.

Tuesday, November 8, 2011

Assumptions & memory: elders are sharper than we think

I'm intrigued by how much more capable the elderly are than we've been led to believe. Since only the luckiest and most sensible of us will even survive to be old, that makes a certain amount of sense.

CRPS, which typically attacks people in their "most productive" years (implicit assumption alert!), has shown us that many medications useful in CRPS, which have been given to the elderly like candy for decades (calcium channel blockers, antidepressants, benzodiazepines) have a serious effect on memory and cognition -- which was documented only because we don't expect 38-year-olds to suddenly lose their ability to track simple tasks.

But the elderly get no slack. If your whip-sharp grandad suddenly can't remember your kid's Little League scores, who's willing to relate it to the meds he just started for his heart?

And who cares enough about grandpa's brain to go to bat for him, and insist that the doc find another way to handle things? Hint: what you eat & what you do, do matter. Visits with nutritional consultants and PTs can be prescribed.

Back to this study:
http://www.sciencedaily.com/releases/2011/11/111104102129.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Fmind_brain+%28ScienceDaily%3A+Mind+%26+Brain+News%29

These wonderfully sensible scientists framed an exact goal: they "set out to investigate how implicitly held negative stereotypes about aging could influence memory performance in older adults."

They specified "implicit" stereotypes, in other words, ones we're not aware that we're responding to. (The kind that patients and doctors hold about each other all the time.)

When the tests were run with the stereotypes laid in, the older people did worse on the memory tests. When the stereotypes were made irrelevant to the outcome, the elders did as well as the youngsters. On the same type of test.

Which should tell you just how pernicious and evil those assumptions we make about old people are. When grandma's memory starts playing up, ask her if she has started any medicine recently. Find out what it was for and how else that can be addressed. Ask if it's the smallest possible dose that's prescribed.

Give up the idea that pills solve problems freely, and recognize that each one imposes a tax on the body and brain.

If grandpa doesn't mind losing his mind but won't give up his risotto and vichyssoise, maybe the pills are fine, but if he simply assumes the doctor is offering the best deal without showing him alternatives, maybe it's time to talk about alternatives.

Because doctors default to doing what's easy and predictable -- just like the rest of us! That's not always what's best for a mentally or physically active person. They seem to deal with a lot of lazy idiots, and if you or your elders are neither, it takes a lot of effort to bust them out of their groove and get them to think things through.

Try taking it seriously, because nobody should be forced to lose their mind before they lose their pulse.

Tuesday, October 18, 2011

SSRI can improve cognition after a stroke

This came out 2/2010, right in the middle of my being horribly overdosed on SSRI and SNRI medications:

http://www.sciencedaily.com/releases/2010/02/100201171523.htm

(This is where I give myself points for not being violently and irrationally opposed to the class of drugs that did me, personally, so much harm. It's important not to throw the baby out with the bathwater.)

129 patients were divided into roughly 3 groups, one of which got 5-10 mg Lexapro daily, another got placebo, and the third were assigned to "a problem-solving therapy program developed for treating patients with depression." (No idea what program that is and they weren't specific about it.)

The Lexapro group had the best neurocognitive scores after 12 weeks, though the author doesn't say by how much, or how they processed the data. These are both important issues in scientific studies, since some differences are significant and others are just curious, and how you arrived at those figures can have a considerable effect on how seriously your readers should take them.

"...reported changes in neuropsychological performance resulted in an improvement in related activities of daily living" -- which makes perfect sense. When all is said and done, healing of any kind is about what more you can DO afterwards! Doctors, patients, and significant others tend to lose sight of that, getting lost in the compelling drama of symptomatology, misery, and pain. It's not that that isn't important, but being able to take care of yourself -- or making it so your patient can do so -- is absolutely primal.

This study used low doses, which I suspect is key to unimpaired cognitive function -- not to mention avoiding the usual side effects of this class of drugs, as they did.