Fisetin: The Anti-Aging Assassin
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Out With The Old…
Fisetin is a flavonoid (specifically, a flavonol), but it’s a little different than most. While it has the usual antioxidant, anti-inflammatory, and anti-cancer properties you might reasonably expect from flavonoids, it has an extra anti-aging trick up its sleeve that most don’t.
❝Fisetin is a flavonol that shares distinct antioxidant properties with a plethora of other plant polyphenols. Additionally, it exhibits a specific biological activity of considerable interest as regards the protection of functional macromolecules against stress which results in the sustenance of normal cells cytoprotection. Moreover, it shows potential as an anti-inflammatory, chemopreventive, chemotherapeutic and recently also senotherapeutic agent❞
~ Dr. Grynkiewicz & Dr. Demchuk
Let’s briefly do some due diligence on its expected properties, and then we’ll take a look at its bonus anti-aging effects.
The flavonol that does-it-ol
Because of the similar mechanisms involved, there are three things that often come together, which are:
- Antioxidant
- Anti-inflammatory
- Anticancer
This list often gets expanded to also include:
- Anti-aging
…although that is usually the last thing to get tested out of that list.
In today’s case, let’s kick it off with…
❝Fisetin (3,3′,4′,7-tetrahydroxyflavone) is a dietary flavonoid found in various fruits (strawberries, apples, mangoes, persimmons, kiwis, and grapes), vegetables (tomatoes, onions, and cucumbers), nuts, and wine that has shown strong anti-inflammatory, anti-oxidant, anti-tumorigenic, anti-invasive, anti-angiogenic, anti-diabetic, neuroprotective, and cardioprotective effects❞
Read more: Fisetin and Its Role in Chronic Diseases
Understanding its anticancer mechanisms
The way that fisetin fights cancer is basically “all the ways”, and this will be important when we get to its special abilities shortly:
❝Being a potent anticancer agent, fisetin has been used to inhibit stages in the cancer cells (proliferation, invasion),prevent cell cycle progression, inhibit cell growth, induce apoptosis, cause polymerase (PARP) cleavage, and modulate the expressions of Bcl‐2 family proteins in different cancer cell lines (HT‐29, U266, MDA‐MB‐231, BT549, and PC‐3M‐luc‐6), respectively. Further, fisetin also suppresses the activation of the PKCα/ROS/ERK1/2 and p38 MAPK signaling pathways, reduces the NF‐κB activation, and down‐regulates the level of the oncoprotein securin. Fisetin also inhibited cell division and proliferation and invasion as well as lowered the TET1 expression levels. ❞
Read more: Fisetin: An anticancer perspective
There’s also more about it than we even have room to quote, here:
Now For What’s New And Exciting: Senolysis
All that selectivity that fisetin exhibits when it comes to “this cell gets to live, and this one doesn’t” actions?
It makes a difference when it comes to aging, too. Because aging and cancer happen by quite similar mechanisms; they’re both DNA-copying errors that get copied forward, to our detriment.
- In the case of cancer, it’s a cell line that accidentally became immortal and so we end up with too many of them multiplying in one place (a tumor)
- In the case of aging, it’s the cellular equivalent of “a photocopy of a photocopy of a photocopy” gradually losing information as it goes
In both cases…
The cell must die if we want to live
Critically, and which quality differentiates it from a lot of other flavonoids, fisetin has the ability to selectively kill senescent cells.
To labor the photocopying metaphor, this means there’s an office worker whose job it is to say “this photocopy is barely legible, I’m going to toss this, and then copy directly from the clearest copy we have instead”, thus keeping the documents (your DNA) in pristine condition.
In fisetin’s case, this was first tested in mouse (in vivo) studies, and in human tissue (in vitro) studies, before moving to human clinical studies:
❝Of the 10 flavonoids tested, fisetin was the most potent senolytic.
The natural product fisetin has senotherapeutic activity in mice and in human tissues. Late life intervention was sufficient to yield a potent health benefit.❞
~ Dr. Matthew Yousefzadeh et al.
Read in full: Fisetin is a senotherapeutic that extends health and lifespan
There’s lots more science that’s been done to it since that first groundbreaking study though; here’s a more recent example:
Want some?
We don’t sell it, but here for your convenience is an example product on Amazon
Enjoy!
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The Hormone Therapy That Reduces Breast Cancer Risk & More
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The Hormone Balancing Act
We’ve written before about menopausal HRT:
What You Should Have Been Told About Menopause Beforehand
…and even specifically about the considerations when it comes to breast cancer risk:
Menopausal Hormone Replacement Therapy
this really does bear reading, by the way—scroll down to the bit about breast cancer risk, because it’s not a simple increased/decreased risk; it can go either way, and which way it goes will depend on various factors including your medical history and what HRT, if any, you are taking.
Hormone Modulating Therapy
Hormone modulating therapy, henceforth HMT, is something a little different.
Instead of replacing hormones, as hormone replacement therapy does, guess what hormone modulating therapy does instead? That’s right…
MHT can modulate hormones by various means, but the one we’re going to talk about today does it by blocking estrogen receptors,
Isn’t that the opposite of what we want?
You would think so, but since for many people with an increased breast cancer risk, the presence of estrogen increases that risk, which leaves menopausal (peri- or post) people in an unfortunate situation, having to choose between increased breast cancer risk (with estrogen), or osteoporosis and increased dementia risk, amongst other problems (without).
However, the key here (in fact, that’s a very good analogy) is in how the blocker works. Hormones and their receptors are like keys and locks, meaning that the wrong-shaped hormone won’t accidentally trigger it. And when the right-shaped hormone comes along, it gets activated and the message (in this case, “do estrogenic stuff here!” gets conveyed). A blocker is sufficiently similar to fit into the receptor, without being so similar as to otherwise act as the hormone.
In this case, it has been found that HMT blocking estrogen receptors was sufficient to alleviate the breast cancer risk, while also being associated with a 7% lower risk of developing Alzheimer’s disease or related dementias, with that risk reduction being even greater for some demographics depending on race and age. Black women in the 65–74 age bracket enjoyed a 24% relative risk reduction, with white women of the same age getting an 11% relative risk reduction. Black women enjoyed the same benefits after that age, whereas white women starting it at that age did not get the same benefits. The conclusion drawn from this is that it’s good to start this at 65 if relevant and practicable, especially if white, because the protective effect is strongest when gained aged 65–69.
Here’s a pop-science article that goes into the details more deeply than we have room for here:
Hormone therapy for breast cancer linked with lower dementia risk
And here’s the paper itself; we highly recommend reading at least the abstract, because it goes into the numbers in much more detail than we reasonably can here. It’s a huge cohort study of 18,808 women aged 65 years or older, so this is highly relevant data:
Want to learn more?
If you’d like a much deeper understanding of breast cancer risk management, including in the context of hormone therapy, you might like this excellent book that we reviewed recently:
The Smart Woman’s Guide to Breast Cancer – by Dr. Jenn Simmons
Take care!
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The Science of Self-Learning – by Peter Hollins
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Teaching oneself new things is often the most difficult kind of bootstrapping, especially when one is unsure of such critical things as:
- Where to begin? How, for that matter, do we find where to begin?
- What can/should a learning journey look like?
- What challenges should we expect, and how will we overcome them?
Hollins answers all of these questions and more. The greatest value of this book is perhaps in its clear presentation of concrete step-by-step instructions. Hollins gives illustrated examples too, but most importantly, he gives models that can be applied to any given type of learning.
The book also covers the most difficult problems most people face when trying to learn something by themselves, including:
- Keeping oneself on-task (maintaining discipline)
- Measuring progress (self-testing beyond memorization)
- Keeping a fair pace of progress (avoiding plateaus)
- How to know when one’s knowledge is sufficient or not (avoiding Dunning-Kruger Club)
All in all, if you’re looking to learn a new subject or skill, this could be a first step that saves you a lot of time later!
Get your copy of the Science of Self-Learning on Amazon today!
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Where to Get Turmeric?
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It’s Q&A Day at 10almonds!
Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!
In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!
As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!
So, no question/request too big or small
“I liked the info on Turmeric. The problem for me is that I do not like black pepper which should be ingested with the turmeric for best results. Is black pepper sold in capsule form?”
Better than just black pepper being sold in capsule form, it’s usually available in the same capsules as the turmeric. As in: if you buy turmeric capsules, there is often black pepper in them as well, for precisely that reason. Check labels, of course, but here’s an example on Amazon.
“I would like to read more on loneliness, meetup group’s for seniors. Thank you”
Well, 10almonds is an international newsletter, so it’s hard for us to advise about (necessarily: local) meetup groups!
But a very popular resource for connecting to your local community is Nextdoor, which operates throughout the US, Canada, Australia, and large parts of Europe including the UK.
In their own words:
Get the most out of your neighborhood with Nextdoor
It’s where communities come together to greet newcomers, exchange recommendations, and read the latest local news. Where neighbors support local businesses and get updates from public agencies. Where neighbors borrow tools and sell couches. It’s how to get the most out of everything nearby. Welcome, neighbor.
Curious? Click here to check it out and see if it’s of interest to you
“It was superb !! Just loved that healthy recipe !!! I would love to see one of those every day, if possible !! Keep up the fabulous work !!!”
We’re glad you enjoyed! We can’t promise a recipe every day, but here’s one just for you:
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Patient Underwent One Surgery but Was Billed for Two. Even After Being Sued, She Refused To Pay.
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Jamie Holmes says a surgery center tried to make her pay for two operations after she underwent only one. She refused to buckle, even after a collection agency sued her last winter.
Holmes, who lives in northwestern Washington state, had surgery in 2019 to have her fallopian tubes tied, a permanent birth-control procedure that her insurance company agreed ahead of time to cover.
During the operation, while Holmes was under anesthesia, the surgeon noticed early signs of endometriosis, a common condition in which fibrous scar tissue grows around the uterus, Holmes said. She said the surgeon later told her he spent about 15 minutes cauterizing the troublesome tissue as a precaution. She recalls him saying he finished the whole operation within the 60 minutes that had been allotted for the tubal ligation procedure alone.
She said the doctor assured her the extra treatment for endometriosis would cost her little, if anything.
Then the bill came.
The Patient: Jamie Holmes, 38, of Lynden, Washington, who was insured by Premera Blue Cross at the time.
Medical Services: A tubal ligation operation, plus treatment of endometriosis found during the surgery.
Service Provider: Pacific Rim Outpatient Surgery Center of Bellingham, Washington, which has since been purchased, closed, and reopened under a new name.
Total Bill: $9,620. Insurance paid $1,262 to the in-network center. After adjusting for prices allowed under the insurer’s contract, the center billed Holmes $2,605. A collection agency later acquired the debt and sued her for $3,792.19, including interest and fees.
What Gives: The surgery center, which provided the facility and support staff for her operation, sent a bill suggesting that Holmes underwent two separate operations, one to have her tubes tied and one to treat endometriosis. It charged $4,810 for each.
Holmes said there were no such problems with the separate bills from the surgeon and anesthesiologist, which the insurer paid.
Holmes figured someone in the center’s billing department mistakenly thought she’d been on the operating table twice. She said she tried to explain it to the staff, to no avail.
She said it was as if she ordered a meal at a fast-food restaurant, was given extra fries, and then was charged for two whole meals. “I didn’t get the extra burger and drink and a toy,” she joked.
Her insurer, Premera Blue Cross, declined to pay for two operations, she said. The surgery center billed Holmes for much of the difference. She refused to pay.
Holmes said she understands the surgery center could have incurred additional costs for the approximately 15 minutes the surgeon spent cauterizing the spots of endometriosis. About $500 would have seemed like a fair charge to her. “I’m not opposed to paying for that,” she said. “I am opposed to paying for a whole bunch of things I didn’t receive.”
The physician-owned surgery center was later purchased and closed by PeaceHealth, a regional health system. But the debt was turned over to a collection agency, SB&C, which filed suit against Holmes in December 2023, seeking $3,792.19, including interest and fees.
The collection agency asked a judge to grant summary judgment, which could have allowed the company to garnish wages from Holmes’ job as a graphic artist and marketing specialist for real estate agents.
Holmes said she filed a written response, then showed up on Zoom and at the courthouse for two hearings, during which she explained her side, without bringing a lawyer. The judge ruled in February that the collection agency was not entitled to summary judgment, because the facts of the case were in dispute.
More From Bill Of The Month
- Her Hearing Implant Was Preapproved. Nonetheless, She Got $139,000 Bills for Months.
- It’s Called an Urgent Care Emergency Center — But Which Is It?
- He Fell Ill on a Cruise. Before He Boarded the Rescue Boat, They Handed Him the Bill.
Representatives of the collection agency and the defunct surgery center declined to comment for this article.
Sabrina Corlette, co-director of Georgetown University’s Center on Health Insurance Reforms, said it was absurd for the surgery center to bill for two operations and then refuse to back down when the situation was explained. “It’s like a Kafka novel,” she said.
Corlette said surgery center staffers should be accustomed to such scenarios. “It is quite common, I would think, for a surgeon to look inside somebody and say, ‘Oh, there’s this other thing going on. I’m going to deal with it while I’ve got the patient on the operating table.’”
It wouldn’t have made medical or financial sense for the surgeon to make Holmes undergo a separate operation for the secondary issue, she said.
Corlette said that if the surgery center was still in business, she would advise the patient to file a complaint with state regulators.
The Resolution: So far, the collection agency has not pressed ahead with its lawsuit by seeking a trial after the judge’s ruling. Holmes said that if the agency continues to sue her over the debt, she might hire a lawyer and sue them back, seeking damages and attorney fees.
She could have arranged to pay off the amount in installments. But she’s standing on principle, she said.
“I just got stonewalled so badly. They treated me like an idiot,” she said. “If they’re going to be petty to me, I’m willing to be petty right back.”
The Takeaway: Don’t be afraid to fight a bogus medical bill, even if the dispute goes to court.
Debt collectors often seek summary judgment, which allows them to garnish wages or take other measures to seize money without going to the trouble of proving in a trial that they are entitled to payments. If the consumers being sued don’t show up to tell their side in court hearings, judges often grant summary judgment to the debt collectors.
However, if the facts of a case are in dispute — for example, because the defendant shows up and argues she owes for just one surgery, not two — the judge may deny summary judgment and send the case to trial. That forces the debt collector to choose: spend more time and money pursuing the debt or drop it.
“You know what? It pays to be stubborn in situations like this,” said Berneta Haynes, a senior attorney for the National Consumer Law Center who reviewed Holmes’ bill for KFF Health News.
Many people don’t go to such hearings, sometimes because they didn’t get enough notice, don’t read English, or don’t have time, she said.
“I think a lot of folks just cave” after they’re sued, Haynes said.
Emily Siner reported the audio story.
After six years, we’ll have a final installment with NPR of our Bill of the Month project in the fall. But Bill of the Month will continue at KFF Health News and elsewhere. We still want to hear about your confusing or outrageous medical bills. Visit Bill of the Month to share your story.
KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the core operating programs at KFF—an independent source of health policy research, polling, and journalism. Learn more about KFF.
Subscribe to KFF Health News’ free Morning Briefing.
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Spark – by Dr. John Ratey
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
We all know that exercise is good for mental health as well as physical. So, what’s so revolutionary about this “revolutionary new science of exercise and the brain”?
A lot of it has to do with the specific neuroscience of how exercise has not only a mood-boosting effect (endorphins) and neuroprotective effect (helping to guard against cognitive decline), but also promotes neuroplasticity… e.g., the creation and strengthening of neural pathways, as well as boosting the structure of the brain in some parts such as the cerebellum.
The book also covers not just “exercise has these benefits”, but also the “how this works” of all kinds of brain benefits, including:
- against Alzheimer’s
- mitigating ADHD
- managing menopause
- dealing with addiction
…and more. And once we understand how something works, we’re far more likely to be motivated to actually do the kinds of exercises that give the specific benefits we want/need. Which is very much the important part!
In short: this book will tell you what you need to know to get you doing the exercises you need to enjoy those benefits—very much worth it!
Don’t Forget…
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Learn to Age Gracefully
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What Happens Every Day When You Quit Sugar For 30 Days
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We all know that sugar isn’t exactly a health food, but it can be hard to quit. How long can cravings be expected to last, and when can we expect to see benefits? Today’s video covers the timeline in a realistic yet inspiring fashion:
What to expect on…
Day 1: expect cravings and withdrawal symptoms including headaches, fatigue, mood swings, and irritability—as well as tiredness, without the crutch of sugar.
Days 2 & 3: more of the same, plus likely objections from the gut, since your Candida albicans content will not be enjoying being starved of its main food source.
Days 4–7: reduction of the above symptoms, better energy levels, improved sleep, and likely the gut will be adapting or have adapted.
Days 8–14: beginning of weight loss, clearer skin, improved complexion; taste buds adapt too, making foods taste sweeter. Continued improvement in energy and focus, as well.
Days 15–21: more of the same improvements, plus the immune system will start getting stronger around now. But watch out, because there may still be some cravings from time to time.
Days 22–30: all of the above positive things, few or no cravings now, and enhanced metabolic health as a whole.
For more specificity on each of these stages, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
The Not-So-Sweet Science Of Sugar Addiction
Take care!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails: