European Parkinson Therapy Podcast: Parkinson Podcast network

ENGLISH Constapation and Parkinson's

Alexander George Reed Season 6 Episode 1

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0:00 | 21:33

Executive Summary  www.ParkinsonTherapy.com 

Constipation is one of the most prevalent and debilitating non-motor symptoms of Parkinson’s disease (PD), affecting between 20% and 80% of patients. It frequently serves as a prodromal marker, appearing up to 20 years before the onset of cardinal motor symptoms. The condition is primarily driven by the deposition of alpha-synuclein in the enteric nervous system (ENS) and damage to the autonomic nervous system, which regulates involuntary muscle movements in the intestinal tract.

SPEAKER_00

Imagine going to the doctor. Uh maybe you're in your 40s and you're dealing with some occasional constipation.

SPEAKER_01

Right. Something pretty common.

SPEAKER_00

Exactly. But then you're told it's actually an early warning siren for a, well, a neurological movement disorder that you won't even develop until your 60s.

SPEAKER_01

Yeah, it sounds like science fiction, honestly.

SPEAKER_00

Aaron Powell It really does. You just wouldn't expect a sluggish bowel movement to predict a hand tremor decades down the line. I mean, it's wild. But when we look at the landscape of Parkinson's disease, that is exactly what the data shows.

SPEAKER_01

Aaron Powell Yeah, the early warning system isn't uh it isn't a change in how someone walks or some sudden rigidity in their hands. The warning sirens are actually going off in the gut.

SPEAKER_00

Aaron Powell Which completely forces a rethinking of how we view neurodegeneration. And uh for this deep dive, we are looking at a serious stack of sources today.

SPEAKER_01

Aaron Powell We really are. We've got clinical insights from the ANOVA Parkinson's and Movement Disorder Center, physical therapy strategies from Rogue PT.

SPEAKER_00

Guidelines from the American Parkinson Disease Association, too.

SPEAKER_01

Right. And diagnostic criteria from practical neurology, plus a, well, a pretty intense medical case report from Curious.

SPEAKER_00

Yeah, that case report is wild. We'll get to that. But the common thread through all of this is that constipation isn't just some frustrating side effect for people with Parkinson's. I mean, it's often the opening act.

SPEAKER_01

Exactly. According to the research in practical neurology, people who have fewer than one bowel movement a day, they actually have three times higher odds of developing motor Parkinson's later in life.

SPEAKER_00

Okay, let's unpack this because a three times higher risk is massive. But biologically, how does a traffic jam in your digestive crack decades earlier connect to the brain?

SPEAKER_01

Right. It feels like a massive leap.

SPEAKER_00

It does. It feels like we need a better mental model than just saying, you know, they're linked. I like to think of it less like a sudden storm and more like a slow-moving electrical fire.

SPEAKER_01

Oh, I like that analogy.

SPEAKER_00

Yeah, like a fire that starts deep in the basement wiring of a house and it's just smoldering for 20 years, right? Before it finally burns its way up the walls and shorts out the fuse box in the attic. And the attic is the brain.

SPEAKER_01

That is a highly accurate way to visualize it. I mean, in the medical community, this mechanism is explained by the Brank hypothesis.

SPEAKER_00

Right, break.

SPEAKER_01

Yeah. The theory proposes that the core pathology of Parkinson's, which is basically the abnormal clumping of a misfolded protein called alpha cinucline. Right. It doesn't spontaneously begin in the brain's motor centers. It actually originates in the enteric nervous system.

SPEAKER_00

Which is the gut, right?

SPEAKER_01

Exactly. It's this vastly complex, independent network of nerves embedded in the lining of your gastrointestinal tract.

SPEAKER_00

A lot of people actually call it the second brain.

SPEAKER_01

Because it does so much without us thinking about it.

SPEAKER_00

Exactly. It governs everything your gut does automatically.

SPEAKER_01

So in stage one of the disease, long before anyone notices a hand tremor, these uh these alpha-sinuclein proteins are already depositing in the gut's wiring.

SPEAKER_00

Right. They're actively damaging the autonomic nerves that dictate peristalsis.

SPEAKER_01

Aaron Powell Peristalsis being that muscular wave that pushes food and waste through your system.

SPEAKER_00

Right. So if the electrical signal is weakened by those proteins, the muscles just don't get the message to contract. Which leads directly to the two distinct types of constipation we see in Parkinson's, like the ones physical therapists, like those at Rogue PT, talk about.

SPEAKER_01

Yeah, the first one is called slow transit constipation. And it's exactly what you just described. The colon itself becomes sluggish because of that autonomic nerve damage.

SPEAKER_00

The physical wave of muscle contraction just isn't happening with enough frequency or, you know, force.

SPEAKER_01

Yeah, it's like cars moving at five miles per hour on a highway.

SPEAKER_00

Aaron Powell Right. The road is clear, but the engines are failing.

SPEAKER_01

Exactly. And then there's the second type, which Rogue PT calls outlet constipation or pelvic floor dysfunction.

SPEAKER_00

Aaron Powell So staying with that traffic analogy, outlet constipation is like arriving at your exit, but the toll booth gate is stuck closed.

SPEAKER_01

That's a great way to put it, because the pelvic floor muscles, they're supposed to relax in this highly coordinated way to let waste out.

SPEAKER_00

But due to the neurological deficits of Parkinson's?

SPEAKER_01

Right. Those muscles often remain tight and uncoordinated during a bowel movement. What's fascinating here is the sheer scale of this hidden epidemic. It's huge, right? Massive. When you combine slow transit and outlet dysfunction, up to 85% of people with Parkinson's experience debilitating constipation.

SPEAKER_00

Wow. 85%.

SPEAKER_01

Yeah. Yet studies show only about 40% openly reported to their doctors.

SPEAKER_00

Aaron Powell, which means the hesitation to discuss bowel habits, which let's be real is an uncomfortable topic, means a massive portion of the patient population is just suffering in silence.

SPEAKER_01

Absolutely.

SPEAKER_00

I understand the stigma, I really do, but I want to look at the mechanics of this. If the physical nerves in the gut are actively being destroyed by these protein clumps, can a patient actually do anything about it?

SPEAKER_01

That's the big question.

SPEAKER_00

Right. Or are we just talking about fighting a completely lost cause against a progressive structural disease?

SPEAKER_01

Aaron Powell You know, a lot of patients fall into that exact mindset. They feel resigned. They assume it's just a tragic, inevitable part of the disease.

SPEAKER_00

Aaron Powell, which makes sense.

SPEAKER_01

It does. But looking at the extreme end of the spectrum shows why resignation is dangerous. Because ignoring the problem, assuming it's a lost cause, doesn't just leave you uncomfortable.

SPEAKER_00

Right. It gets much worse.

SPEAKER_01

Aaron Powell Yeah. It leads to severe, life-threatening structural consequences across completely different organ systems. We are talking about clinical emergencies.

SPEAKER_00

And that brings the curious case study into stark focus. Because honestly, reading this report was genuinely alarming.

SPEAKER_01

It's intense.

SPEAKER_00

Yeah, it details a 77-year-old female patient with advanced Parkinson's. She was wheelchair bound, relying on 24-hour care, and she just kept ending up in the emergency room.

SPEAKER_01

Right, with vomiting, generalized abdominal pain.

SPEAKER_00

Then severe abdominal distension. Her stomach was visibly painfully swollen.

SPEAKER_01

Yeah, and when the medical team finally imaged her abdomen, they found severe colonic dysmotility.

SPEAKER_00

Which in plain English means the muscles in her colon had essentially given up trying to move anything forward.

SPEAKER_01

Exactly. And this led to a massive fecal impaction. Her rectosigmoid colon, which is that final S-shaped curve of the large intestine just before the exit, it was incredibly dilated.

SPEAKER_00

Just stretched far beyond its normal capacity.

SPEAKER_01

Right. But the impaction wasn't even the only emergency.

SPEAKER_00

This was the shocking part to me. Her colon had become so distended, so ballooned out, that it physically compressed her urinary tract.

SPEAKER_01

Yeah, it was actually crushing her right ureter, which is the tube that carries urine from the kidney to the bladder. Trevor Burrus, Jr.

SPEAKER_00

Which led to right hydroreater, so a swollen urinary tube and hydronephrosis.

SPEAKER_01

Right. And hydronephrosis literally means water inside the kidney.

SPEAKER_00

Wow.

SPEAKER_01

Because the dilated colon was pinching the ureter completely shut, the urine had nowhere to go. It backed up into the kidney, causing it to swell dangerously. Trevor Burrus, Jr.

SPEAKER_00

Because the anatomy of the pelvic cavity is tight. There isn't a lot of extra room in there.

SPEAKER_01

None at all. So when one organ system fails and expands massively like that, it acts like a physical vice grip on the surrounding organs. Aaron Ross Powell, Jr.

SPEAKER_00

Which means she was at immediate risk for permanent kidney damage, systemic infection, or you know, sepsis.

SPEAKER_01

Aaron Powell Exactly. And the intervention was incredibly intense. The surgical and urology teams couldn't just give her a pill.

SPEAKER_00

No, they had to use a rectal tube, perform manual disimpaction, and administer a series of tap water enemas. And they ultimately removed two pounds of stool from her colon.

SPEAKER_01

Two pounds.

SPEAKER_00

Two pounds. But the wild thing is the moment they cleared that blockage, the external pressure on her urinary tract just vanished.

SPEAKER_01

Yeah, the hydronephrosis resolved almost immediately.

SPEAKER_00

It's incredible.

SPEAKER_01

It's the ultimate cautionary tale. Proactive management isn't a luxury, it's a non-negotiable requirement.

SPEAKER_00

Absolutely.

SPEAKER_01

Because if you let slow transit and outlet dysfunction go unchecked, the mechanical buildup of waste will literally start breaking down your other organs.

SPEAKER_00

And most people want to avoid that ER scenario at all costs. So the immediate instinct is to reach for a medication, right? To force the gut to move.

SPEAKER_01

Of course. That's human nature.

SPEAKER_00

But the sources highlight a massive medication paradox here. The American Parkinson Disease Association guidelines provide a pretty sobering list of medications that actually cause or severely worsen constipation.

SPEAKER_01

It's a brutal catch-22. Many of the first-line therapies meant to help Parkinson's motor symptoms are actually the worst offenders for the gut.

SPEAKER_00

Yeah, drugs like Artane and Cogentin. Right. And we need to look at why that happens. These drugs are anticholinergics. Their whole job is to block acetylcholine, which is a neurotransmitter in the brain that gets overactive in Parkinson's and contributes to tremors.

SPEAKER_01

But acetylcholine is also the primary chemical messenger in your autonomic nervous system that tells your gut muscles to contract.

SPEAKER_00

It's the rest and digest chemical.

SPEAKER_01

Exactly. So when you block it to stop a tremor in your hand, you are simultaneously paralyzing the smooth muscle in your colon.

SPEAKER_00

You're sacrificing gut motility for motor control.

SPEAKER_01

You really are. This raises an important question, though, because the list doesn't stop at Parkinson's medications.

SPEAKER_00

Oh, right. It includes narcotic pain medications, antacids containing aluminum or calcium.

SPEAKER_01

Antihistamines like benadryl, certain antidepressants, and even blood pressure medications like clonodyne.

SPEAKER_00

It's like trying to put out a fire in your kitchen with a fire hose, only to realize you're accidentally flooding your basement.

SPEAKER_01

That's a great analogy.

SPEAKER_00

The very thing solving one crisis is creating another. So if a patient is trapped in this paradox, what are the actual evidence-based medical interventions for the gut?

SPEAKER_01

Well, doctors have to thread the needle carefully. For the slow transit type of constipation, the medical guidelines point to specific compounds that don't rely on stimulating those damaged nerves.

SPEAKER_00

Like what?

SPEAKER_01

Polyethylene glycol, which most people know as muralax, is a primary choice, along with a prescription drug called lubiprostone.

SPEAKER_00

Okay, so how does muralax work if it's not stimulating the nerves?

SPEAKER_01

It's an osmotic laxative. Instead of irritating the bowel to force a contraction, it simply draws water from the surrounding tissues into the colon.

SPEAKER_00

Ah, okay.

SPEAKER_01

Yeah, it softens the stool and increases its volume, which naturally stretches the bowel wall. That gentle stretching is often enough to trigger whatever reflex remains without relying heavily on the compromised nervous system.

SPEAKER_00

Okay, but what if the problem is outlet constipation? You know the stuck toll booth scenario where the pelvic floor muscles just won't relax. Miralax isn't going to fix a muscle spasm at the exit, right?

SPEAKER_01

Right, it won't. That requires a targeted neuromuscular approach. Because the issue is muscle rigidity, doctors might use injections of fast-acting Parkinson's medications like apomorphine directly into the system to briefly improve motor function right when the patient needs to go.

SPEAKER_00

Oh wow, just a temporary boost.

SPEAKER_01

Exactly. And in more severe cases, they actually use botulenum toxinabos.

SPEAKER_00

Wait, Botox for constipation?

SPEAKER_01

Yeah. They inject it right into the puberctalis muscle. Botox works by blocking the nerve signals that tell the muscle to contract, essentially forcing it into a relaxed state so the toll booth gate stays open.

SPEAKER_00

That is brilliant.

SPEAKER_01

It really is. There's also non-pharmacological biofeedback therapy that uses sensors to help the patient visually see their muscle contractions on a screen, retraining them to coordinate those pelvic floor muscles during a bowel movement.

SPEAKER_00

Okay, using Botox to force the pelvic floor to relax is amazing. But medications and injections are still a double-edged sword and they can lose efficacy over time. That's very true. Which brings us to a really powerful ethos we found from the European Parkinson Therapy Center. Their core philosophy is never give up and find solutions from around the world. I love that approach. Me too. Because constipation will affect almost everyone with this disease, from mild daily annoyance to the severe impaction we discussed. So we have to look globally and practically. Beyond the pharmacy, what mechanical and natural hacks actually exist?

SPEAKER_01

Well, the mechanical fixes are where we start seeing immediate drug-free results. Rogue physical therapy emphasizes that our modern standard toilets actually create anatomical strain.

SPEAKER_00

Yeah, sitting at a 90-degree angle kinks the lower bowel.

SPEAKER_01

Exactly. The solution is just elevating your knees above your hips.

SPEAKER_00

By using a footstool or a squatty potty.

SPEAKER_01

Right. When you sit normally, that puberectalis muscle we mentioned earlier acts like a sling around your rectum, pulling it tight to maintain continence.

SPEAKER_00

Okay.

SPEAKER_01

By elevating the knees into a squatting position, you mechanically relax that muscle sling. It straightens the anorectal angle, creating a vertical chute instead of a bent pipe.

SPEAKER_00

So you don't have to push. You let gravity do the work.

SPEAKER_01

Exactly. Rogue PT also recommends colon massage to physically move the waist.

SPEAKER_00

Oh, how does that work?

SPEAKER_01

You lie in your back, apply moderate pressure, and move your hand in a slow, clockwise circle, starting from the lower right side of your abdomen. You're basically tracing the natural ascending transverse descending path of the large intestine.

SPEAKER_00

It's an elegant workaround. You aren't curing the nerve damage caused by alpha-sinuclein, but you are optimizing the plumbing that remains.

SPEAKER_01

Yeah, you're reducing the friction so those weakened muscles don't have to work as hard.

SPEAKER_00

Here's where it gets really interesting, though. The dietary solutions. We aren't just giving the generic eat more salads advice here. No, definitely not. The Innova Parkinson's and Movement Disorder Center gathered specific tested recipes from their patient community.

SPEAKER_01

Which is great because community-sourced remedies are invaluable. They've been pressure tested by people navigating the realities of a sluggish gut every single day.

SPEAKER_00

Yes. The first one is called the Not So Secret Recipe. It is one part applesauce, one part bran, cereal-like unprocessed wheat bran, and one part prune juice.

SPEAKER_01

Okay, sounds simple.

SPEAKER_00

It is. You mix it up, keep it in a container in the fridge, and eat just one or two tablespoons every morning. Nice. Then there's Ellen's constipation cure. This came from a patient who was taking massive doses of metamucil and chemical stool softeners with absolutely no success.

SPEAKER_01

That sounds awful.

SPEAKER_00

Right. But a physical therapist told her to eat two rounded tablespoons of high fiber canned pumpkin at breakfast.

SPEAKER_01

Pumpkin. Pumpkin is an incredible intervention because it provides a dense source of soluble fiber.

SPEAKER_00

Aaron Powell And soluble fiber acts differently than normal fiber, right?

SPEAKER_01

Yeah, unlike insoluble fiber, which just adds roughage, soluble fiber absorbs water in the gut and turns into a thick, gel-like substance.

SPEAKER_00

Oh, interesting.

SPEAKER_01

That gel coats the stool, making it slippery and significantly easier to pass without relying on harsh chemical stimulants.

SPEAKER_00

It worked so well for that patient that she dropped her other laxatives entirely. I know. And there is also a recipe for constipation paste. You take a pound of prunes, a pound of raisins, a pound of figs, some brown sugar, lemon juice, and senate.

SPEAKER_01

That is a powerhouse combination.

SPEAKER_00

You boil it all down and puree it into a paste that you can spread on toast. And we actually need to look at why this works biologically.

SPEAKER_01

Well, the senate is key there. Senna contains compounds called senocides. When they reach the colon, your gut bacteria break them down into a mild irritant that stimulates the mucosal lining, forcing a peristaltic wave.

SPEAKER_00

Oh, so it forces the contraction. And the prunes in that paste provide a dual mechanism, right?

SPEAKER_01

Exactly. They contain fiber, of course, but they also contain high levels of sorbitol.

SPEAKER_00

Right, sorbitol.

SPEAKER_01

Yeah, it's a natural sugar alcohol that the human body absorbs very poorly. Because it stays in the digestive tract, it has a powerful osmotic effect, much like miralax.

SPEAKER_00

So it pulls water from the surrounding tissues into the colon, softening the waste.

SPEAKER_01

You got it.

SPEAKER_00

Then you add probiotics into the mix. The APDA notes that specific bacterial strains like bifidobacterium and lactobacillus can be highly beneficial for Parkinson's patients.

SPEAKER_01

Dosing is critical here, though. Preliminary studies indicate these probiotics are most effective when taken daily at doses of at least a billion colony-forming units or CFU for a minimum of two weeks.

SPEAKER_00

A billion CFU, okay.

SPEAKER_01

Yeah, because you are actively trying to repopulate the gut microbiome with bacteria that naturally produce short-chain fatty acids. Those help regulate bowel motility and reduce localized inflammation.

SPEAKER_00

So we have looked at the 20-year root cause, the extreme dangers of ignoring it, the medication paradox, and these brilliant hacks from around the world.

SPEAKER_01

We've covered a lot.

SPEAKER_00

We have. Now, in the spirit of the European Parkinson Therapy Center, we need to synthesize all of this into a simple daily routine because you can't just try a random recipe once a week and hope for the best.

SPEAKER_01

No, a piecemeal approach will fail against a progressive neurological condition. You need a structured daily regimen. If we connect this to the bigger picture, pulling from Dr. Mick Reedy's clinical guidelines at Innova and the APDA framework, we can build a highly specific schedule. And it begins the second you wake up.

SPEAKER_00

Morning hydration.

SPEAKER_01

Morning hydration is the first pillar. You want to front load your fluids, starting with warm liquids to stimulate the gastrocolic reflex. The absolute non-negotiable target is 64 ounces of water daily, roughly six to eight glasses.

SPEAKER_00

Warm liquid makes a lot of sense. It's a gentle thermal trigger for the digestive tract to wake up. And then breakfast needs to be highly regimented too, right?

SPEAKER_01

Yes. Consistency trains the body's circadian rhythm. Eat breakfast at the exact same time every morning. This is the moment to deploy the dietary hacks.

SPEAKER_00

Mix in the two tablespoons of canned pumpkin or have your spoonful of the applesauce bran prune paste.

SPEAKER_01

Exactly.

SPEAKER_00

And the overall fiber target for the day.

SPEAKER_01

The goal is 20 to 35 grams of fiber per day, sourced from whole foods like lentils, sweet potatoes, beans, or bran cereals. But, and there's a massive caveat from the EPDA here, you must ramp up your fiber intake slowly. Add no more than five grams a week until you reach that 20 to 35 gram threshold.

SPEAKER_00

Okay, I want to pause and push back on this routine for a second because we need to address the reality of living with Parkinson's. The average American diet only has about 15 grams of fiber. Jumping to 35 grams, drinking 64 ounces of water, adhering to a strict bathroom schedule, managing medications. I mean, this sounds like a full-time job.

SPEAKER_01

It is a lot of work.

SPEAKER_00

For someone already dealing with profound physical fatigue, tremors, and cognitive load, is this actually feasible? And frankly, if someone is exhausted and decides to just take a massive scoop of psyllium husk fiber but forgets to drink their 64 ounces of water, aren't they making the problem worse?

SPEAKER_01

They are making it exponentially worse. Taking bulk forming fiber without adequate hydration is the equivalent of pouring dry cement mix into a clogged pipe.

SPEAKER_00

Oh man, dry cement.

SPEAKER_01

Yeah. It will cause severe cramping, severe bloating, and can precipitate the exact type of bowel obstruction we saw in the curious case study. Fiber and water are an inseparable partnership.

SPEAKER_00

So they have to be done together.

SPEAKER_01

Always. But your pushback is incredibly valid. The cognitive and physical burden is high. That is precisely why the routine must be automated.

SPEAKER_00

What do you mean by automated?

SPEAKER_01

You don't try to remember to drink water. You fill a 64-ounce jug every morning and keep it in your sight line. You don't guess your fiber, you eat the exact same engineered breakfast every day to remove the decision fatigue.

SPEAKER_00

Ah, I see. You streamline it to protect your energy. What about physical movement?

SPEAKER_01

Cardiovascular exercise is the final pillar. A daily brisk walk physically bounces the organs and stimulates peristalsis.

SPEAKER_00

Just getting things moving mechanically.

SPEAKER_01

Exactly. Pair that with diaphragmatic breathing, deep belly breaths, and the pelvic floor exercises to maintain whatever coordination remains. Finally, you establish a fixed time every single day to sit on the toilet with your feet elevated on a stool.

SPEAKER_00

And the golden rule from the APDA.

SPEAKER_01

Never, under any circumstances, ignore or delay the urge to have a bowel movement. If your body signals that it's time, you drop whatever you're doing and go.

SPEAKER_00

So, what does this all mean? Constipation in Parkinson's disease will affect almost everyone. It ranges from mild daily annoyance to severe medical crisis.

SPEAKER_01

It's a huge spectrum.

SPEAKER_00

It is. The nerve damage caused by alpha synuclin is real and the structural complexities are profound. But you are absolutely not powerless. You don't have to accept this as an inevitable tragic consequence of the disease.

SPEAKER_01

Not at all.

SPEAKER_00

By combining aggressive, measured hydration, timed fiber intake, mechanical posture changes, and targeted medical support when needed, this is entirely manageable. We have solutions from around the world. You have the tools to keep the traffic moving.

SPEAKER_01

It requires vigilance, but the tools work. As we conclude today, I want to leave you with a thought to consider, circling all the way back to the break hypothesis we started with. We established that the alpha-synuclein protein clumps that eventually cause the severe motor symptoms of Parkinson's actually begin in the gut, up to 20 years earlier. If that pathway is true, if the disease physically travels from the enteric nervous system up the vagus nerve and into the brain, could the future of Parkinson's treatment lie not in treating the brain at all, but in radically fixing the gut microbiome before the disease ever has the chance to travel upward?

SPEAKER_00

Wow, that is a staggering possibility. Imagine putting out the electrical fire in a basement decades before it ever threatens the attic.

SPEAKER_01

It changes everything.

SPEAKER_00

It really does. Well, thank you so much for joining us on this deep dive. Take these tools, build that automated daily routine, and as always, keep learning and stay curious.

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