Wouldn’t It Be Nice To Have Regenerative Superpowers?

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The Best-Laid Schemes of Mice and Medical Researchers…

This is Dr. Ellen Heber-Katz. She’s an internationally-renowned immunologist and regeneration biologist, but her perhaps greatest discovery was accidental.

Unlike in Robert Burns’ famous poem, this one has a happy ending!

But it did involve the best-laid schemes of mice and medical researchers, and how they did indeed “gang gagly“ (or in the English translation, “go awry”).

How it started…

Back in 1995, she was conducting autoimmune research, and doing a mouse study. Her post-doc assistant was assigned to punch holes in the ears of mice that had received an experimental treatment, to distinguish them from the control group.

However, when the mice were later checked, none of them had holes (nor even any indication there ever had been holes punched)—the experiment was ruined, though the post-doc swore she did her job correctly.

So, they had to start from scratch in the new year, but again, a second batch of mice repeated the trick. No holes, no wounds, no scarring, not disruption to their fur, no damage to the cartilage that had been punched through.

In a turn of events worthy of a superhero origin story, they discovered that their laboratory-made autoimmune disease had accidentally given the mice super-healing powers of regeneration.

In the animal kingdom, this is akin to a salamander growing a new tail, but it’s not something usually found in mammals.

Read: A New Murine Model for Mammalian Wound Repair and Regeneration

How it’s going…

Dr. Heber-Katz and colleagues took another 20 years of work to isolate hypoxia-inducible factor-1a (HIF-1a) as a critical molecule that, if blocked, would eliminate the regenerative response.

Further, a drug (which they went on to patent), 1,4-dihydrophenonthrolin-4-one-3-carboxylic acid (1,4-DPCA), chemically induced this regenerative power:

See: Drug-induced regeneration in adult mice

Another 5 years later, they found that this same drug can be used to stimulate the regrowth of bones, too:

An injectable hydrogel-formulated inhibitor of prolyl-4-hydroxylase promotes T regulatory cell recruitment and enhances alveolar bone regeneration during resolution of experimental periodontitis

And now…

The research is continuing. Here’s the latest, a little over a month ago:

Epithelial–mesenchymal transition: an organizing principle of mammalian regeneration

Regrowing nerves has also been added into the list of things the drug can do.

What about humans?

Superpowered mice are all very well and good, but when can we expect this in humans?

The next step is testing the drug in larger animals, which she hopes to do next year, followed eventually by studies in humans.

Read the latest:

Regrowing nerves and healing without scars? A scientist’s career-long quest comes closer to fruition

Very promising!

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  • Hero Homemade Hummus

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    If you only have store-bought hummus at home, you’re missing out. The good news is that hummus is very easy to make, and highly customizable—so once you know how to make one, you can make them all, pretty much. And of course, it’s one of the healthiest dips out there!

    You will need

    • 2 x 140z/400g tins chickpeas
    • 4 heaped tbsp tahini
    • 3 tbsp extra virgin olive oil
    • Juice of 1 lemon
    • 1 tsp black pepper, coarse ground
    • Optional, but recommended: your preferred toppings/flavorings. Examples to get you started include olives, tomatoes, garlic, red peppers, red onion, chili, cumin, paprika (please do not put everything in one hummus; if unsure about pairings, select just one optional ingredient per hummus for now)

    Method

    (we suggest you read everything at least once before doing anything)

    1) Drain the chickpeas, but keep the chickpea water from them (also called aquafaba; it has many culinary uses beyond the scope of today’s recipe, but for now, just keep it to one side).

    2) Add the chickpeas, ⅔ of the aquafaba, the tahini, the olive oil, the lemon juice, the black pepper, and any optional extra flavoring(s) that you don’t want to remain chunky. Blend until smooth; if it becomes to thick, add a little more aquafaba and blend again until it’s how you want it.

    3) Transfer the hummus to a bowl, and add any extra toppings.

    4) Repeat the above steps for each different kind of hummus you want to make.

    Enjoy!

    Want to learn more?

    For those interested in some of the science of what we have going on today:

    Take care!

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  • Food for Life – by Dr. Tim Spector

    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.

    This book is, as the author puts it, “an eater’s guide to food and nutrition”. Rather than telling us what to eat or not eat, he provides an overview of what the latest science has to say about various foods, and leaves us to make our own informed decisions.

    He also stands firmly by the “personalized nutrition” idea that he introduced in his previous book which we reviewed the other day, and gives advice on what tests we might like to perform.

    The writing style is accessible, without shying away from reference to hard science. Dr. Spector provides lots of information about key chemicals, genes, gut bacteria, and more—as well as simply providing a very enjoyable read along the way.

    Bottom line: if you’d like a much better idea of what food is (and isn’t) doing what, this book is an invaluable resource.

    Click here to check out Food for Life, and make the best decisions for you!

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  • The DASH Diet Mediterranean Solution – by Dr. Marla Heller

    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.

    Sometimes, an author releases a series of books that could have just been one book, with various padding and rehashes. In some cases, naming no names Dr. Mark Hyman, it means we have to carefully pick out the honestly very good and highly recommendable ones from the “you just republished for the extra income, didn’t you?” ones.

    In this case, today’s book is part of a series of books with very similar titles, and this one seems the most useful as a standalone book

    The Mediterranean Diet is still the scientific world’s current “gold standard” in terms of most evidence-based diet for general health, and as we’ve written about, it can be tweaked to focus on being best for [your particular concern here]. In this case, it’s the DASH variant of the Mediterranean Diet, considered best for heart health specifically.

    The style is repetitive, and possibly indicative of the author getting into a habit of having to pad books. Nevertheless, saying things too often is better than forgetting to say them, so hey. On which note, it is more of an educational book than a cookbook—it does have recipes, but not many.

    Bottom line: if you’d like an introduction to the DASH variant of the Mediterranean Diet, this book will get you well-acquainted.

    Click here to check out The DASH Diet Mediterranean Solution, and learn all about it!

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Related Posts

  • Where Nutrition Meets Habits!
  • Dealing With Waking Up In The Night

    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.

    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’m now in my sixties and find that I invariably wake up at least once during the night. Is this normal? Even if it is, I would still like, once in a while, to sleep right through like a teenager. How might this be achieved, without pills?❞

    Most people wake up briefly between sleep cycles, and forget doing so. But waking up for more than a brief moment is indeed best avoided. In men of your age, if you’re waking to pee (especially if it’s then not actually that easy to pee), it can be a sign of an enlarged prostate. Which is again a) normal b) not optimal.

    By “without pills” we’ll assume you mean “without sleeping pills”. There are options to treat an enlarged prostate, including well-established supplements. We did a main feature on this:

    Prostate Health: What You Should Know

    If the cause of waking up is something else, then again this is common for everyone as we get older, and again it’s not optimal. But since there are so many possible causes (and thus solutions), it’s more than we can cover in less than a main feature, so we’ll have to revisit this later.

    Meanwhile, take care!

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  • ‘I can’t quite shut it off’: Prevalence of insomnia a growing concern for women

    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.

    Tasha Werner, 43, gets up at 3:30 a.m. twice a week for her part-time job at a fitness centre in Calgary. After a five-hour shift, she is back home by 9 a.m. to homeschool her two children, aged 9 and 12. The hardest part of her position – stay-at-home mom, homeschool teacher and part-time worker – is the downtime “lost from my life,” says Werner.

    A study by Howard M. Kravitz, a psychiatrist in Chicago, showed that up to 60 per cent of women experience sleep disorders due to hormonal changes linked to menopause. But there is an increasing prevalence of insomnia symptoms in women that may be attributed, in part, to societal changes.

    “We live in a world that didn’t exist a generation ago. Now everyone is trying to figure it out,” says Michael Grandner, director of the Sleep and Health Research Program at the University of Arizona.

    While women are no longer expected to stay at home, many who are employed outside the home also have the primary responsibility for family matters. And women aged 40 to 60 commonly fall within the “sandwich generation,” caring for both children and parents.

    As women juggle their responsibilities, these duties can take a toll, both emotionally and practically.

    Both Werner and her husband were raised in traditional homes; their mothers stayed at home to oversee childcare, cooking, grocery shopping and household duties. Initially, Werner and her husband followed a similar path, mirroring their parents’ lives as homemakers. “I think we just fell into what we were used to,” says Werner.

    However, a notable shift in their family dynamics occurred once she started working outside the home.

    Her children’s physical needs and illnesses have had major consequences on her sleep. If one of the children is sick with the flu, that’s “a week of not a lot of sleep during the night,” she says, “because that’s my job.” Many nights, she finds herself waking up between 1 a.m. and 3 a.m., worrying about how the kids are doing academically or behaviourally.

    “We face a specific set of anxieties and a different set of pressures than men,” says Emma Kobil, who has been a therapist in Denver, Colo., for 15 years and is now an insomnia coach. There is so much pressure to be everything as a woman – to be an amazing homemaker and worker while maintaining a hot-rocking body and having a cool personality, to “be the cool mom but also the CEO, to follow your dreams and be the boss b****,” says Kobil.

    And there’s an appeal to that concept. Daughters grow up viewing their moms as superwomen juggling responsibilities. But what isn’t always obvious are the challenges women face while managing their lives and the health issues they may encounter.

    A study revealed that women are 41 per cent more at risk of insomnia than men.

    A thorough study revealed that women are 41 per cent more at risk of insomnia than men. Beyond menopausal hormonal shifts, societal pressures, maternal concerns and the challenge of balancing multiple roles contribute to women’s increased susceptibility to insomnia.

    Cyndi Aarrestad, 57, lives on a farm in Saskatchewan with her husband, Denis. Now an empty nester, Aarrestad fills her time working on the farm, keeping house, volunteering at her church and managing her small woodworking business. And she struggles with sleep.

    Despite implementing some remedies, including stretching, drinking calming teas and rubbing her feet before bed, Aarrestad says achieving restful sleep has remained elusive for the past decade.

    Two primary factors contribute to her sleep challenges — her inability to quiet her mind and hormonal hot flashes due to menopause. Faced with family and outside commitments, Aarrestad finds it challenging to escape night time’s mental chatter. “It’s a mom thing for me … I can’t quite shut it off.” Even as her children transitioned to young adulthood and moved out, the worries persisted, highlighting the lasting concerns moms have about their kids’ jobs, relationships and overall well-being.

    Therapist Kobil says that every woman she’s ever worked with experiences this pressure to do everything, to be perfect. These women feel like they’re not measuring up. They’re encouraged to take on other people’s burdens; to be the confidante and the saviour in many ways; to sacrifice themselves. Sleep disruptions simply reflect the consequences of this pressure.

    “They’re trying to fit 20 hours in a 24-hour day, and it doesn’t work,” says Grandner, the sleep specialist.

    Grandner says that consistently sleeping six hours or less as an adult makes one 55 per cent more likely to become obese, 20 per cent more likely to develop high blood pressure, and 30 per cent more likely to develop Type 2 diabetes if you didn’t have it already. This lack of sleep makes you more likely to catch the flu. It makes vaccines less effective, and it increases your likelihood of developing depression and anxiety.

    When is the time to change? Yesterday. Grandner warns that the sleep sacrifices made at a young age impact health later. But it’s never too late to make changes, he says, and “you do the best with what you’ve got.”

    Kobil suggests a practical approach for women struggling with sleep. She emphasizes understanding that sleeplessness isn’t a threat and encourages a shift in mindset about being awake. Instead of fighting sleeplessness, she advises treating oneself kindly, recognizing the difficulty.

    Kobil recommends creating a simple playbook with comforting activities for awake moments during the night. Just as you would comfort a child who’s afraid, she suggests being gentle with yourself, gradually changing the perception of wakefulness into a positive experience.

    This article is republished from HealthyDebate under a Creative Commons license. Read the original article.

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  • How To Unfatty A Fatty Liver

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    How To Unfatty A Fatty Liver

    In Greek mythology, Prometheus suffered the punishment of being chained to a rock, where he would have his liver eaten by an eagle, whereupon each day his liver would grow back, only to be eaten again the next day.

    We mere humans who are not Greek gods might not be able to endure quite such punishment to our liver, but it is an incredibly resilient and self-regenerative organ.

    In fact, provided at least 51% of the liver is still present and correct, the other 49% will regrow. Similarly, damage done (such as by trying to store too much fat there due to metabolic problems, as in alcoholic or non-alcoholic fatty liver disease) will reverse itself in time, given the chance.

    The difference between us and Prometheus

    In the myth, Prometheus had his liver regrow overnight every night. Ours don’t recover quite so quickly.

    Indeed, the science has good and bad news for us:

    ❝Liver recolonization models have demonstrated that hepatocytes have an unlimited regenerative capacity. However, in normal liver, cell turnover is very slow.❞

    ~ Michalopoulos and Bhusan (2020)

    Read more: Liver regeneration: biological and pathological mechanisms and implications

    If it regenerates, why do people need transplants, and/or die of liver disease?

    There are some diseases of the liver that inhibit its regenerative abilities, or (as in the case of cancer) abuse them to our detriment. However, in the case of fatty liver disease, the reason is usually simple:

    If the lifestyle factors that caused the liver to become fatty are still there, then its regenerative abilities won’t be able to keep up with the damage that is still being done.

    Can we speed it up at all?

    Yes! The first and most important thing is to minimize how much ongoing harm you are still doing to it, though.

    • If you drink alcohol, stop. According to the WHO, the only amount of alcohol that is safe for you is zero.
    • Consider your medications, and find out which place a strain on the liver. Many medications are not optional; you’re taking them for an important reason, so don’t quit things without checking with your doctor. Medications that strain the liver include, but are by no means limited to:
      • Many painkillers, including acetaminophen (Tylenol), paracetamol, and ibuprofen
      • Some immunosuppresent drugs, including azathioprine
      • Some epilepsy drugs, including phenytoin
      • Some antibiotics, including amoxicillin
      • Statins in general

    Note: we are not pharmacists, nor doctors, let alone your doctors.

    Check with yours about what is important for you to take, and what alternatives might be safe for you to consider.

    Dietary considerations

    While there are still things we don’t know about the cause(s) of non-alcoholic fatty liver disease, there is a very strong association with a diet that is:

    • high in salt
    • high in refined carbohydrates
      • e.g. white flour and white flour products such as white bread and white pasta; also the other main refined carbohydrate: sugar
    • high in red meat
    • high in non-fermented dairy
    • high in fried foods.

    So, consider minimizing those, and instead getting plenty of fiber, and plenty of lean protein (not from red meat, but poultry and fish are fine iff not fried; beans and legumes are top-tier, though).

    Also, hydrate. Most people are dehydrated most of the time, and that’s bad for all parts of the body, and the liver is no exception. It can’t regenerate if it’s running on empty!

    Read more: Foods To Include (And Avoid) In A Healthy Liver Diet

    How long will it take to heal?

    In the case of alcoholic fatty liver disease, it should start healing a few days after stopping drinking. Then, how long it takes to fully recover depends on the extent of the damage; it could be weeks or months. In extreme cases, years, but that is rare. Usually if the damage is that severe, a transplant is needed.

    In the case of non-alcoholic fatty liver disease, again it depends on the extent of the damage, but it is usually a quicker recovery than the alcoholic kind—especially if eating a Mediterranean diet.

    Read more: How Long Does It Take For Your Liver To Repair Itself?

    Take good care of yourself!

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