A drug that can extend your life by 25%? Don’t hold your breath
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Every few weeks or months, the media reports on a new study that tantalisingly dangles the possibility of a new drug to give us longer, healthier lives.
The latest study centres around a drug involved in targeting interleukin-11, a protein involved in inflammation. Blocking this protein appeared to help mice stave off disease and extend their life by more than 20%.
If only defying the ravages of time could be achieved through such a simple and effort-free way – by taking a pill. But as is so often the case, the real-world significance of these findings falls a fair way short of the hype.
The role of inflammation in disease and ageing
Chronic inflammation in the body plays a role in causing disease and accelerating ageing. In fact, a relatively new label has been coined to represent this: “inflammaging”.
While acute inflammation is an important response to infection or injury, if inflammation persists in the body, it can be very damaging.
A number of lifestyle, environmental and societal drivers contribute to chronic inflammation in the modern world. These are largely the factors we already know are associated with disease and ageing, including poor diet, lack of exercise, obesity, stress, lack of sleep, lack of social connection and pollution.
While addressing these issues directly is one of the keys to addressing chronic inflammation, disease and ageing, there are a number of research groups also exploring how to treat chronic inflammation with pharmaceuticals. Their goal is to target and modify the molecular and chemical pathways involved in the inflammatory process itself.
What the latest research shows
This new interleukin-11 research was conducted in mice and involved a number of separate components.
In one component of this research, interleukin-11 was genetically knocked out in mice. This means the gene for this chemical mediator was removed from these mice, resulting in the mice no longer being able to produce this mediator at all.
In this part of the study, the mice’s lives were extended by over 20%, on average.
Another component of this research involved treating older mice with a drug that blocks interleukin-11.
Injecting this drug into 75-week old mice (equivalent to 55-year-old humans) was found to extend the life of mice by 22-25%.
These treated mice were less likely to get cancer and had lower cholesterol levels, lower body weight and improved muscle strength and metabolism.
From these combined results, the authors concluded, quite reasonably, that blocking interleukin-11 may potentially be a key to mitigating age-related health effects and improving lifespan in both mice and humans.
Why you shouldn’t be getting excited just yet
There are several reasons to be cautious of these findings.
First and most importantly, this was a study in mice. It may be stating the obvious, but mice are very different to humans. As such, this finding in a mouse model is a long way down the evidence hierarchy in terms of its weight.
Research shows only about 5% of promising findings in animals carry over to humans. Put another way, approximately 95% of promising findings in animals may not be translated to specific therapies for humans.
Second, this is only one study. Ideally, we would be looking to have these findings confirmed by other researchers before even considering moving on to the next stage in the knowledge discovery process and examining whether these findings may be true for humans.
We generally require a larger body of evidence before we get too excited about any new research findings and even consider the possibility of human trials.
Third, even if everything remains positive and follow-up studies support the findings of this current study, it can take decades for a new finding like this to be translated to successful therapies in humans.
Until then, we can focus on doing the things we already know make a huge difference to health and longevity: eating well, exercising, maintaining a healthy weight, reducing stress and nurturing social relationships.
Hassan Vally, Associate Professor, Epidemiology, Deakin University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Meals That Heal – by Dr. Carolyn Williams
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Inflammation is implicated as a contributory or casual factor in almost all chronic diseases (and still exacerbates the ones in which it’s not directly implicated causally), so if there’s one area of health to focus on with one’s diet, then reducing inflammation is a top candidate.
This book sets about doing exactly that.
You may be wondering whether, per the book’s subtitle, they can really all be done in 30 minutes or under. The answer is: no, not unless you have a team of sous-chefs to do all the prep work for you, and line up everything mise-en-place style for when you start the clock. If you do have that team of sous-chefs working for you, then you can probably do most of them in under 30 minutes. If you don’t have that team, then budget about an hour in total, sometimes less, sometimes more, depending on the recipe.
The recipes themselves are mostly Mediterranean-inspired, though you might want to do a few swaps where the author has oddly recommended using seed oils instead of olive oil, or plant milk in place of where she has used dairy milk in a couple of “recipes” for smoothies. You might also want to be a little more generous with the seasonings, if you’re anything like this reviewer.
Bottom line: if you’re looking for an anti-inflammatory starter cookbook, you could do worse than this. You could probably do better, too, such as starting with The Inflammation Spectrum – by Dr. Will Cole.
Alternatively, click here if you want to check out Meals That Heal, and dive straight in!
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Creatine, Genomic Screening, & More
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In this week’s health news…
Creatine: no difference vs control at 5g/day
A study found, as the title suggests, no difference between creatine and placebo, at the usual dose of 5g/day, while doing a supervised resistance training program.
This was a 12-week trial, and in the first week, the creatine group put on an average of 0.5kg more lean (i.e. not fat) body mass than the control group, however, as this quickly equalized after the first week, it is assumed that the brief extra weight gain was water weight (creatine promotes water retention, especially in the initial phase).
However, it is still possible that it may promote weight gain at higher doses.
This study was done with adult participants under the age of 50; we’ve noted before that it is generally young people who use creatine for bodybuilding, so in principle, this should have been ideal for that, but it wasn’t.
Read in full: Sports supplement creatine makes no difference to muscle gains, trial finds
Related: Creatine’s Brain Benefits Increase With Age ← this, on the other hand, does work—but only for older adults.
Genomics & disease risk: what to know
In a recent study evaluation, 175,500 participants were screened, and 1 in 30 received medically important genetic results. More than 90% of those found to have a genetic risk were previously unaware of it.
This is important, because most current genetic risk assessment for patients is based on personal and family history, which often misses a lot of data due to barriers to care or lack of family history.
Genomic screening helps close these gaps:
Read in full: Genomic screening is important in identifying disease risk, study finds
Related: Do You Have A Personalized Health Plan? (Here’s How)
FDA-Approved Antivirals (Not Vaccines) Ineffective Against H5N1
The H5N1 avian influenza outbreak is now rife amongst dairy farms, with the virus found in cows’ milk and infecting farmworkers. Researchers studied potential treatments, revealing two FDA-approved antivirals (baloxavir and oseltamivir) were generally ineffective in treating severe H5N1 infections.
Oral infections per raw milk consumption, were the most severe and hardest to treat, and the virus spread quickly to the blood and brain (when the infection is respiratory, it is much slower to spread from the respiratory tract).
It wasn’t a complete loss, though:
- Eye infections were better controlled with baloxavir, achieving a 100% survival rate compared to 25% with oseltamivir.
- For nasal infections, baloxavir reduced viral levels better but still allowed the virus to reach the brain. Survival rates were 75% for baloxavir and 50% for oseltamivir.
The researchers in question are urging preventative measures as being of critical importance, given the difficulty of treatment:
Read in full: Current antivirals likely less effective against severe infection caused by bird flu virus in cows’ milk
Related: Bird Flu: Children At High Risk; Older Adults Not So Much
Take care!
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Cucumber vs Lychee – Which is Healthier?
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Our Verdict
When comparing cucumber to lychee, we picked the lychee.
Why?
In terms of macros, the lychee has more carbs and more fiber, but both are low glycemic index foods. Functionally a tie, though we could consider it a nominal win for cucumber.
In the category of vitamins, cucumber has more of vitamins A, B1, B5, and K, while lychee has more of vitamins B2, B3, B6, B9, C, E, and choline. In particular, cucumber has a lot more vitamin K and lychee has a lot more vitamin C. Nevertheless, in terms of overall vitamin coverage, lychee is the clear winner here.
Looking at minerals, cucumber has more calcium, magnesium, manganese, and zinc, while lychee has more copper (especially rich in this), iron, phosphorus, potassium, and selenium. Another clear win for lychee.
Both have an abundance of anti-inflammatory polyphenols, but we could find no strong argument for one being better than the other in this category, just different.
In short, both are fine options, but the more nutritionally dense is the lychee, so that’s our choice!
Want to learn more?
You might like to read:
Cucumber Extract Beats Glucosamine & Chondroitin… At 1/135th Of The Dose?!
Take care!
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Glutathione: More Than An Antioxidant
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Glutathione’s Benefits: The Usual And The Unique
Glutathione is a powerful antioxidant that does all the things we might reasonably expect an antioxidant to do, plus some beneficial quirks of its own.
We do make glutathione in our bodies, but we can also get it from our diet, and of course, we can also supplement it.
What foods is it in?
It’s in a lot of foods, but some top examples include:
- turmeric
- avocado
- asparagus
- almonds
- cruciferous vegetables
- watermelon
- garlic
For a fuller list and discussion, see:
What does it do?
Let’s start with the obvious; as with most things that are antioxidant, it is also anti-inflammatory. Increasing or decreasing glutathione levels is associated with decreased or increased inflammation, respectively. For example:
It being anti-inflammatory also means it can be beneficial in calming autoimmune disorders:
Glutathione: a key player in autoimmunity
And to complete the triad of “those three things that generally go together”, yes, this means it also has anticancer potential, but watch out!
❝Although in healthy cells [glutathione] is crucial for the removal and detoxification of carcinogens, elevated [glutathione] levels in tumor cells are associated with tumor progression and increased resistance to chemotherapeutic drugs❞
~ Dr. Miroslava Cuperlovic-Culf et al.
Read in full: Role of Glutathione in Cancer: From Mechanisms to Therapies
So in other words, when it comes to cancer risk management, glutathione is a great preventative, but the opposite of a cure.
What were those “beneficial quirks of its own”?
They are mainly twofold, and the first is that it improves insulin sensitivity. There are many studies showing this, but here’s a recent one from earlier this year:
The Role of Glutathione and Its Precursors in Type 2 Diabetes
The other main “beneficial quirk of its own” is that it helps prevent and/or reverse non-alcoholic fatty liver disease, as in this study from last year:
Because of glutathione’s presence in nuts, fruits, and vegetables, this makes it a great thing to work in tandem with a dietary approach to preventing/reversing NAFLD, by the way:
Anything else?
It’s being investigated as a potential treatment for Parkinson’s disease symptoms, but the science is young for this one, so there is no definitive recommendation yet in this case. If you’re interested in that, though, do check out the current state of the science at:
Potential use of glutathione as a treatment for Parkinson’s disease
Is it safe?
While there is no 100% blanket statement of safety that can ever be made about anything (even water can kill people, and oxygen ultimately kills everyone that something else doesn’t get first), glutathione has one of the safest general safety profiles possible, with the exception we noted earlier (if you have cancer, it is probably better to skip this one unless an oncologist or similar advises you otherwise).
As ever, do speak with your doctor/pharmacist to be sure in any case, though!
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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How To Set Anxiety Aside
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How To Set Anxiety Aside
We’ve talked previously about how to use the “release” method to stop your racing mind.
That’s a powerful technique, but sometimes we need to be calm enough to use it. So first…
Breathe
Obviously. But, don’t underestimate the immediate power of focusing on your breath, even just for a moment.
There are many popular breathing exercises, but here’s one of the simplest and most effective, “4–4 breathing”:
- Breathe in for a count of four
- Hold for a count four
- Breathe out for a count of four
- Hold for a count of four
- Repeat
Depending on your lung capacity and what you’re used to, it may be that you need to count more quickly or slowly to make it feel right. Experiment with what feels comfortable for you, but the general goal should breathing deeply and slowly.
Identify the thing that’s causing you anxiety
We’ve also talked previously about how to use the RAIN technique to manage difficult emotions, and that’s good for handling anxiety too.
Another powerful tool is journaling.
Read: How To Use Journaling to Challenge Anxious Thoughts
If you don’t want to use any of those (very effective!) methods, that’s fine too—journaling isn’t for everyone.
You can leverage some of the same benefits by simply voicing your worries, even to yourself:
There’s an old folk tradition of “worry dolls”; these are tiny little dolls so small they can be kept in a pocket-size drawstring purse. Last thing at night, the user whispers their worries to the dolls and puts them back in their bag, where they will work on the person’s problem overnight.
We’re a health and productivity newsletter, not a dealer of magic and spells, but you can see how it works, right? It gets the worries out of one’s head, and brings about a helpful placebo effect too.
Focus on what you can control
- Most of what you worry about will not happen.
- Some of what you worry about may happen.
- Worrying about it will not help.
In fact, in some cases it may bring about what you fear, by means of the nocebo effect (like the placebo effect, but bad). Additionally, worrying drains your body and makes you less able to deal with whatever life does throw at you.
So while “don’t worry; be happy” may seem a flippant attitude, sometimes it can be best. However, don’t forget the other important part, which is actually focusing on what you can control.
- You can’t control whether your car will need expensive maintenance…
- …but you can control whether you budget for it.
- You can’t control whether your social event will go well or ill…
- …but you can control how you carry yourself.
- You can’t control whether your loved one’s health will get better or worse…
- …but you can control how you’re there for them, and you can help them take what sensible precautions they may.
…and so forth.
Look after your body as well!
Your body and mind are deeply reliant on each other. In this case, just as anxiety can drain your body’s resources, keeping your body well-nourished, well-exercised, and well-rested and can help fortify you against anxiety. For example, when it comes to diet, exercise, and sleep:
- Read: Fruit and vegetable intake is inversely associated with perceived stress across the adult lifespan
- Read: Exercise and anxiety: physical activity appears to be protective against anxiety disorders in clinical and non-clinical populations
- Read: Sleep problems predict and are predicted by generalized anxiety/depression
Don’t know where to start? How about the scientifically well-researched, evidence-based, 7-minute workout?
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Will there soon be a cure for HIV?
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Human immunodeficiency virus, or HIV, is a chronic health condition that can be fatal without treatment. People with HIV can live healthy lives by taking antiretroviral therapy (ART), but this medication must be taken daily in order to work, and treatment can be costly. Fortunately, researchers believe a cure is possible.
In July, a seventh person was reportedly cured of HIV following a 2015 stem cell transplant for acute myeloid leukemia. The patient stopped taking ART in 2018 and has remained in remission from HIV.
Read on to learn more about HIV, the promise of stem cell transplants, and what other potential cures are on the horizon.
What is HIV?
HIV infects and destroys the immune system’s cells, making people more susceptible to infections. If left untreated, HIV will severely impair the immune system and progress to acquired immunodeficiency syndrome (AIDS). People living with untreated AIDS typically die within three years.
People with HIV can take ART to help their immune systems recover and to reduce their viral load to an undetectable level, which slows the progression of the disease and prevents them passing the virus to others.
How can stem cell transplants cure HIV?
Several people have been cured of HIV after receiving stem cell transplants to treat leukemia or lymphoma. Stem cells are produced by the spongy tissue located in the center of some bones, and they can turn into new blood cells.
A mutation on the CCR5 gene prevents HIV from infecting new cells and creates resistance to the virus, which is why some HIV-positive people have received stem cells from donors carrying this mutation. (One person was reportedly cured of HIV after receiving stem cells without the CCR5 mutation, but further research is needed to understand how this occurred.)
Despite this promising news, experts warn that stem cell transplants can be fatal, so it’s unlikely this treatment will be available to treat people with HIV unless a stem cell transplant is needed to treat cancer. People with HIV are at an increased risk for blood cancers, such as Hodgkin lymphoma and non-Hodgkin lymphoma, which stem cell transplants can treat.
Additionally, finding compatible donors with the CCR5 mutation who share genetic heritage with patients of color can be challenging, as donors with the mutation are typically white.
What are other potential cures for HIV?
In some rare cases, people who started ART shortly after infection and later stopped treatment have maintained undetectable levels of HIV in their bodies. There have also been some people whose bodies have been able to maintain low viral loads without any ART at all.
Researchers are studying these cases in their search for a cure.
Other treatment options researchers are exploring include:
- Gene therapy: In addition to stem cell transplants, gene therapy for HIV involves removing genes from HIV particles in patients’ bodies to prevent the virus from infecting other cells.
- Immunotherapy: This treatment is typically used in cancer patients to teach their immune systems how to fight off cancer. Research has shown that giving some HIV patients antibodies that target the virus helps them reach undetectable levels of HIV without ART.
- mRNA technology: mRNA, a type of genetic material that helps produce proteins, has been used in vaccines to teach cells how to fight off viruses. Researchers are seeking a way to send mRNA to immune system cells that contain HIV.
When will there be a cure for HIV?
The United Nations and several countries have pledged to end HIV and AIDS by 2030, and a 2023 UNAIDS report affirmed that reaching this goal is possible. However, strategies to meet this goal include HIV prevention and improving access to existing treatment alongside the search for a cure, so we still don’t know when a cure might be available.
How can I find out if I have HIV?
You can get tested for HIV from your primary care provider or at your local health center. You can also purchase an at-home HIV test from a drugstore or online. If your at-home test result is positive, follow up with your health care provider to confirm the diagnosis and get treatment.
For more information, talk to your health care provider.
This article first appeared on Public Good News and is republished here under a Creative Commons license.
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