The Dopa-Bean
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Mucuna pruriens, also called the “magic velvet bean”, is an established herbal drug used for the management of male infertility, nervous disorders, and also as an aphrodisiac:
The Magic Velvet Bean of Mucuna pruriens
How it works is more interesting than that, though.
It’s about the dopamine
M. pruriens contains levodopa (L-dopa). That’s right, the same as the dopaminergic medication most often prescribed for Parkinson’s disease. Furthermore, it might even be better than synthetic L-dopa, because:
❝M. pruriens seed extract demonstrated acetylcholinesterase inhibitory activity, while synthetic L-dopa enhanced the activity of the enzyme. It can be concluded that the administration of M. pruriens seed might be effective in protecting the brain against neurodegenerative disorders such as Parkinson’s and Alzheimer’s diseases.
M. pruriens seed extract containing L-dopa has shown less acetylcholinesterase activity stimulation compared with L-dopa, suggesting that the extract might have a superior benefit for use in the treatment of Parkinson’s disease.❞
~ Dr. Narisa Kamkaen et al.
Indeed, it has been tested specifically in (human!) Parkinson’s disease patients, which RCT found:
❝The rapid onset of action and longer on time without concomitant increase in dyskinesias on mucuna seed powder formulation suggest that this natural source of l-dopa might possess advantages over conventional l-dopa preparations in the long term management of Parkinson’s disease❞
~ Dr. Regina Katzenschlager et al.
Read more: Mucuna pruriens in Parkinson’s disease: a double-blind clinical and pharmacological study
Beyond Parkinson’s disease
M. pruriens has also been tested and found beneficial in cases of disease other than Parkinson’s, thus:
Mucuna pruriens in Parkinson’s and in some other diseases: recent advancement and future prospective
…but the science is less well-established for things not generally considered related to dopamine, such as cancer, diabetes, and cardiometabolic disorders.
Note, however, that the science for it being neuroprotective is rather stronger.
Against depression
Depression can have many causes, and (especially on a neurological level) diverse presentations. As such, sometimes what works for one person’s depression won’t touch another person’s, because the disease and treatment are about completely different neurotransmitter dysregulations. So, if a person’s depression is due to a shortage of serotonin, for example, then perking up the dopamine won’t help much, and vice versa. See also:
Antidepressants: Personalization Is Key!
When it comes to M. pruriens and antidepressant activity, then predictably it will be more likely to help if your depression is due to too little dopamine. Note that this means that even if your depression is dopamine-based, but the problem is with your dopamine receptors and not the actual levels of dopamine, then this may not help so much, depending on what else you have going on in there.
The science for M. pruriens and depression is young, and we only found non-human animal studies so far, for example:
In summary
It’s good against Parkinson’s in particular and is good against neurodegeneration in general.
It may be good against depression, depending on the kind of depression you have.
Is it safe?
That’s a great question! And the answer is: it depends. For most people, in moderation, it should be fine (but, see our usual legal/medical disclaimer). Definitely don’t take it if you have bipolar disorder or any kind of schizoid/psychotic disorder; it is likely to trigger a manic/psychotic episode if you do.
For more on this, we discussed it (pertaining to L-dopa in general, not M. pruriens specifically) at greater length here:
An Accessible New Development Against Alzheimer’s ← scroll down to the heading that reads “Is there a catch?”
Want to try some?
We don’t sell it, but here for your convenience is an example product on Amazon 😎
Enjoy!
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The Snooze-Button Controversy
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To Snooze Or Not To Snooze? (Science Has Answers)
This is Dr. Jennifer Kanaan. She’s a medical doctor with a focus on pulmonary critical care, sleep disorders, and sleep medicine.
What does she want to tell us?
She wants us to be wary of the many news articles that have jumped on a certain recent sleep study, such as:
- Is hitting the snooze button really a bad idea? Study sheds light on the impact of morning alarms on sleep and cognition
- Hitting Snooze May Help You Feel Less Sleepy and More Alert, Research Says
- Is it okay to press the snooze button?
- Hitting Snooze May Help You Feel Less Sleepy and More Alert, Research Says
- Hitting the snooze button on your alarm doesn’t make you more tired
For the curious, here is the paper itself, by Dr. Tina Sundelin et al. It’s actually two studies, by the way, but one paper:
The authors of this study concluded:
❝There were no clear effects of snoozing on the cortisol awakening response, morning sleepiness, mood, or overnight sleep architecture.
A brief snooze period may thus help alleviate sleep inertia, without substantially disturbing sleep, for late chronotypes and those with morning drowsiness.❞
Notably, people tend to snooze because an alarm clock will, if not “smart” about it, wake us up mid sleep-cycle more often than not, and that will produce a short “sleep hangover”. By snoozing, we are basically re-rolling the dice on being woken up between sleep cycles, and thus feeling more refreshed.
What’s Dr. Kanaan’s counterpoint?
Dr. Kanaan says:
❝If you’re coming in and out of sleep for 30 minutes, after the alarm goes off the first time, you’re costing yourself 30 minutes of uninterrupted, quality, restorative sleep. This study doesn’t change that fact.❞
She advises that rather than snoozing, we should prioritize getting good sleep in the first place, and once we do wake up, mid sleep-cycle or not, get sunlight. That way, our brain will start promptly scrubbing melatonin and producing the appropriate wakefulness hormones instead. That means serotonin, and also a spike of cortisol.
Remember: cortisol is only bad when it’s chronically elevated. It’s fine, and even beneficial, to have a short spike of cortisol. We make it for a reason!
If you’d like to hear more from Dr. Kanaan, you might like this interview with her at the University of Connecticut:
Want the best of both worlds?
A great option to avoid getting woken in the middle of a sleep cycle, and also not needing to hit snooze, is a sunrise alarm clock. Specifics of these devices vary, but for example, the kind this writer has starts gently glowing an hour before the set alarm time,and gradually gets brighter and lighter over the course of the hour.
We don’t sell them, but here’s an example sunrise alarm clock on Amazon, for your convenience
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How does the drug abemaciclib treat breast cancer?
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The anti-cancer drug abemaciclib (also known as Vernezio) has this month been added to the Australian Pharmaceutical Benefits Scheme (PBS) to treat certain types of breast cancer.
This significantly reduces the cost of the drug. A patient can now expect to pay A$31.60 for a 28-day supply ($7.70 with a health care concession card). The price of abemaciclib without government subsidy is $4,250.
So what is abemaciclib, and how did we get to this point?
It stops cells dividing
Researchers at the pharmaceutical company Eli Lilly developed abemaciclib and published the first study on the drug (then known as LY2835219) in 2014.
Abemaciclib is a type of drug known as a “cyclin-dependent kinase inhibitor”. It’s taken as a pill twice a day.
To maintain our health, many of the cells in our bodies need to grow and divide to produce new cells. Cancers develop when cells grow and divide out of control. Therefore, stopping cells from dividing into new cells is one way that cancer can be fought.
When cells divide, they have to make a copy of their DNA to pass onto the new cell. “Cyclin-dependent kinases” (CDKs for short) are essential for this process. So, if you stop the CDKs, you stop the DNA copying, you stop cells dividing, and you fight the cancer.
However, there are different types of CDKs, and not all cancers need them all to grow. Abemaciclib specifically targets CDK4 and CDK6. Thankfully, a lot of cancers do need these CDKs, including some breast cancers.
The drug targets CDK4 and CDK6. Photoroyalty/Shutterstock But abemaciclib will only be effective against cancers that rely on CDK4 and CDK6 for continued growth. This specificity also means abemaciclib is fairly unique, so it can’t easily be replaced with a different drug.
Two other CDK4/6 inhibitors were developed around the same time as abemaciclib, and are called ribociclib and palbociclib. Both of these drugs are also on the PBS for specific types of breast cancer. As the drugs differ in their chemical structures, they have slight differences in the way they are taken up and processed by the body. The preferred drug given to a breast cancer patient will depend on their unique circumstances.
What are the side effects?
Research is still ongoing into the differences between each of these CDK4/6 inhibitors, but it is known that the side effects are largely similar, but can differ in severity.
The most common side effects of abemaciclib are fatigue, diarrhoea and neutropenia (reduced white blood cells). The gastrointestinal issues are generally more severe with abemaciclib.
If these side effects are too severe, abemaciclib treatment can be stopped.
What types of cancer has abemaciclib been approved for?
In 2017, the United States Food and Drug Administration (FDA) approved abemaciclib for the treatment of patients with metastatic HR+/HER2- (hormone receptor-positive and human epidermal growth factor receptor 2-negative) breast cancer who did not respond to standard endocrine therapy.
Australia’s Therapeutic Goods Administration (TGA) similarly approved abemaciclib in 2022 as an “adjuvant” therapy (after the initial surgery to remove the tumour) for patients with HR+/HER2- invasive early breast cancer which had spread to lymph nodes and was at high risk of returning.
The drug is approved for people with early breast cancer which is at high risk of returning. PeopleImages.com – Yuri A/Shutterstock As of May 1 2024, the PBS covers this use of abemaciclib in combination with endocrine therapy such as fulvestrant, which is also listed on the PBS. Endocrine therapy, also known as hormonal therapy, blocks hormone receptor positive (HR+) cancers from receiving the hormones they need to survive.
Could abemaciclib be used for other cancers in the future?
Abemaciclib is of great interest to scientists and medical practitioners, and testing is ongoing to assess the effectiveness of abemaciclib in treating a range of other cancers, including gastrointestinal cancers and blood cancers.
Abemaciclib may even be usable in brain cancers, as it has long been known to be capable of crossing the blood-brain barrier, a common stumbling block for potential anti-cancer drugs.
Time will tell whether the role of abemaciclib in health care will be expanded. But for now, its inclusion on the PBS is sure to bring some relief to breast cancer patients nationwide.
Sarah Diepstraten, Senior Research Officer, Blood Cells and Blood Cancer Division, Walter and Eliza Hall Institute and John (Eddie) La Marca, Senior Resarch Officer, Walter and Eliza Hall Institute
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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The Polyvagal Theory – by Dr. Stephen Porges
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Do you ever find that your feelings (or occasionally: lack thereof) sometimes can seem mismatched with the observed facts of your situation? This book unravels that mystery—or rather, that stack of mysteries.
Dr. Porges’ work on this topic is, by the way, the culmination of 40 years of research. While he’s not exactly a household name to the layperson, he’s very respected in his field, and this book is his magnum opus.
Here he explains the disparate roles of the two branches of the vagus nerve (hence: polyvagal theory). At least, the two branches that we mammals have; non-mammalian vertebrates have only one. This makes a big difference, because of the cascade of inhibitions that this allows.
The answer to the very general question “What stops you from…?” is usually found somewhere down this line of cascade of inhibitions.
These range from “what stops you from quitting your job/relationship/etc” to “what stops you from freaking out” to “what stops you from relaxing” to “what stops you from reacting quickly” to “what stop you from giving up” to “what stops you from gnawing your arm off” and many many more.
And because sometimes we wish we could do something that we can’t, or wish we wouldn’t do something that we do, understanding this process can be something of a cheat code to life.
A quick note on style: the book is quite dense and can be quite technical, but should be comprehensible to any layperson who is content to take their time, because everything is explained as we go along.
Bottom line: if you’d like to better understand the mysteries of how you feel vs how you actually are, and what that means for what you can or cannot wilfully do, this is a top-tier book
Click here to check out Polyvagal Theory, and take control of your responses!
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Your Future Self – by Dr. Hal Herschfield
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How do you want to be, one year from now? Five years from now? Ten years from now?
Now, how would you have answered that same question one, five, ten years ago?
The reality, according to Dr. Hal Herschfield, is that often we go blundering into the future blindly, because we lack empathy with our future self. Our past self, we can have strong feelings about. They could range from compassion to shame, pride to frustration, but we’ll have feelings. Our future self? A mystery.
What he proposes in this book, therefore, is not merely the obvious “start planning now, little habits that add up”, etc, but also to address the underlying behavioral science of why we don’t.
Starting with exercises of empathy for our tomorrow-self (literally tomorrow, i.e. the day after this one), and building a mindset of “paying it forward”—to ourself.
By treating our future self like a loved one, we can find ourselves a lot more motivated to actually do the things that future-us will thank us for.
The real value of this book is in the progressive exercises, because it’s a “muscle” that most people haven’t exercised much. But when we do? What a superpower it becomes!
Bottom line: if you know what you “should” do, but somehow just don’t do it, this book will help connect you to your future self and work as a better team to get there… the way you actually want.
Click here to check out Your Future Self, and start by gifting this book to future-you!
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Just One Heart – by Dr. Jonathan Fisher
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First, what this is not: a book to say eat fiber, go easy on the salt, get some exercise, and so forth.
What this rather is: a book about the connection between the heart and mind; often written poetically, the simple biological reality is that our emotional state does have a genuine impact on our heart health, and as such, any effort to look after our heart (healthwise) would be incomplete without an effort to look after our heart (emotionally).
Dr. Fisher talks about the impact of stress and uncertainty, as well as peace and security, on heart health—and then, having sorted emotional states into “heart breakers” and “heart wakers”, he goes about laying out a plan for what is, emotionally and thus also physiologically, good for our heart.
Chapter by chapter, he walks us through the 7 principles to live by:
- Steadiness: how to steady your heart amid chaos
- Wisdom: how to develop a wise heart in uncertain times
- Openness: how to safely open your heart in a threatening world
- Wholeness: how to show up with your whole heart without going to pieces
- Courage: how to lead with a courageous heart when fear surrounds you
- Lightness: how to live with a light heart in a heavy world
- Warmth: how to love with a warm heart when life feels cold
The style is anything but clinical; it’s well-written, certainly, and definitely informed in part by his medical understanding of the heart, but it’s entirely the raw human element that shines throughout, and that makes the ideas a lot more tangible.
Bottom line: if you’d like your heart to be healthy (cardiac health) and your heart to be healthy (emotional health), this book is a very worthwhile read.
Click here to check out Just One Heart, and take care of yours!
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Fully Present – by Dr. Susan Smalley and Diana Winston
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“The Science and the Art of…” tends to be a bit of a fuzzy obfuscation, but in this case, it’s accurate, especially in this presentation. The authors are, indeed, a scientist and an artist—and both practitioners, meeting in the middle.
As such, we get the clinical insights of a researcher and professor of psychiatry, and the grounded-yet-spiritual insights of an erstwhile Buddhist nun.
While the book is pop psychology in essence, the format is much more that of a textbook than a self-help book. Will it be useful for helping yourself anyway, though? Yes, absolutely, if you apply the information contained within.
Don’t be fooled into thinking that a textbook format makes it dry, though—the writing is very compelling, and you’ll find yourself turning pages eagerly. There’s no time like the present, after all!
Bottom line: if you find the scientific evidence-base for the usefulness of mindfulness appealing, but find a lot of guides a little fluffy, this one is perfectly balanced—and very well written, too.
Click here to check out Fully Present, bring yourself into the moment, always!
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