Men have a biological clock too. Here’s what’s more likely when dads are over 50
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We hear a lot about women’s biological clock and how age affects the chance of pregnancy.
New research shows men’s fertility is also affected by age. When dads are over 50, the risk of pregnancy complications increases.
Data from more than 46 million births in the United States between 2011 and 2022 compared fathers in their 30s with fathers in their 50s.
While taking into account the age of the mother and other factors known to affect pregnancy outcomes, the researchers found every ten-year increase in paternal age was linked to more complications.
The researchers found that compared to couples where the father was aged 30–39, for couples where the dad was in his 50s, there was a:
- 16% increased risk of preterm birth
- 14% increased risk of low birth weight
- 13% increase in gestational diabetes.
The older fathers were also twice as likely to have used assisted reproductive technology, including IVF, to conceive than their younger counterparts.
Dads are getting older
In this US study, the mean age of all fathers increased from 30.8 years in 2011 to 32.1 years in 2022.
In that same period, the proportion of men aged 50 years or older fathering a child increased from 1.1% to 1.3%.
We don’t know the proportion of men over 50 years who father children in Australia, but data shows the average age of fathers has increased.
In 1975 the median age of Australian dads was 28.6 years. This jumped to 33.7 years in 2022.
How male age affects getting pregnant
As we know from media reports of celebrity dads, men produce sperm from puberty throughout life and can father children well into old age.
However, there is a noticeable decline in sperm quality from about age 40.
Female partners of older men take longer to achieve pregnancy than those with younger partners.
A study of the effect of male age on time to pregnancy showed women with male partners aged 45 or older were almost five times more likely to take more than a year to conceive compared to those with partners aged 25 or under. More than three quarters (76.8%) of men under the age of 25 years impregnated their female partners within six months, compared with just over half (52.9%) of men over the age of 45.
Pooled data from ten studies showed that partners of older men are also more likely to experience miscarriage. Compared to couples where the male was aged 25 to 29 years, paternal age over 45 years increased the risk of miscarriage by 43%.
Older men are more likely to need IVF
Outcomes of assisted reproductive technology, such as IVF, are also influenced by the age of the male partner.
A review of studies in couples using assisted reproductive technologies found paternal age under 40 years reduced the risk of miscarriage by about 25% compared to couples with men aged over 40.
Having a male under 40 years also almost doubled the chance of a live birth per treatment cycle. With a man over 40, 17.6% of treatment rounds resulted in a live birth, compared to 28.4% when the male was under 40.
How does male age affect the health outcomes of children?
As a result of age-related changes in sperm DNA, the children of older fathers have increased risk of a number of conditions. Autism, schizophrenia, bipolar disorders and leukaemia have been linked to the father’s advanced years.
A review of studies assessing the impact of advanced paternal age reported that children of older fathers have increased rates of psychiatric disease and behavioural impairments.
But while the increased risk of adverse health outcomes linked to older paternal age is real, the magnitude of the effect is modest. It’s important to remember that an increase in a very small risk is still a small risk and most children of older fathers are born healthy and develop well.
Improving your health can improve your fertility
In addition to the effects of older age, some chronic conditions that affect fertility and reproductive outcomes become more common as men get older. They include obesity and diabetes which affect sperm quality by lowering testosterone levels.
While we can’t change our age, some lifestyle factors that increase the risk of pregnancy complications and reduce fertility, can be tackled. They include:
- smoking
- recreational drug taking
- anabolic steroid use
- heavy alcohol consumption.
Get the facts about the male biological clock
Research shows men want children as much as women do. And most men want at least two children.
Yet most men lack knowledge about the limitations of female and male fertility and overestimate the chance of getting pregnant, with and without assisted reproductive technologies.
We need better public education, starting at school, to improve awareness of the impact of male and female age on reproductive outcomes and help people have healthy babies.
For men wanting to improve their chance of conceiving, the government-funded sites Healthy Male and Your Fertility are a good place to start. These offer evidence-based and accessible information about reproductive health, and tips to improve your reproductive health and give your children the best start in life.
Karin Hammarberg, Senior Research Fellow, Global and Women’s Health, School of Public Health & Preventive Medicine, Monash University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Eating on the Wild Side: – by Jo Robinson
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The author is an investigative journalist, and it shows here, as she leaves no stone unturned in her quest for the truth in the face of many food myths.
She covers a lot of “popular wisdom” things that are varyingly true or false, or sometimes even both—in the case of food lore that’s a good rule of thumb, but has notable exceptions (e.g. “more colorful and/or darker-colored fruits/vegetables contain more nutrients”, which is a very good rule of thumb until one meets a cauliflower, for example).
She also covers food preparation myths, and how, to give one example, in spite of the popularity of “less cooked is better”, in some cases certain cooking methods will indeed destroy nutrients; in others, certain cooking methods will improve nutritional availability. Either by destroying an adjacent antinutrient (e.g. phytates), or by breaking something down into a more manageable form that our body can absorb. Knowing which is which, is important.
The book is organized by kinds of food, and does exclusively cover plants, but there’s more than enough material for any omnivore to enjoy.
The style is… Journalistic, it would be fair to say. Which is not surprising, given the author. But it means that it is written in a fairly narrative way, to draw the reader in and make it an enjoyable read while still being informative in all parts (there is no padding). In terms of science, the in-the-prose science is as minimal as possible to still convey what needs to be conveyed, while 25 pages of bibliography stack up at the end to show that indeed, this journalist cites sources.
Bottom line: this is a really enjoyable book, packed with a wealth of knowledge, and is perfect to uplift your cooking by knowing your ingredients a little more intimately!
Click here to check out Eating On The Wild Side, and, enjoy!
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Uric Acid’s Extensive Health Impact (And How To Lower It)
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Uric Acid’s Extensive Health Impact (And How To Lower It)
This is Dr. David Perlmutter. He’s a medical doctor, and a Fellow of the American College of Nutrition. He’s a member of the Editorial Board for the Journal of Alzheimer’s Disease, and has been widely published in many other peer-reviewed journals.
What does he want us to know?
He wants us to know about the health risks of uric acid (not something popularly talked about so much!), and how to reduce it.
First: what is it? Uric acid is a substance we make in our own body. However, unlike most substances we make in our body, we have negligible use for it—it’s largely a waste product, usually excreted in urine.
However, if we get too much, it can build up (and crystallize), becoming such things as kidney stones, or causing painful inflammation if it shows up in the joints, as in gout.
More seriously (unpleasant as kidney stones and gout may be), this inflammation can have a knock-on effect triggering (or worsening) other inflammatory conditions, ranging from non-alcoholic fatty liver disease, to arthritis, to dementia, and even heart problems. See for example:
- David Perlmutter | Uric Acid and Cognitive Decline
- American Heart Association | Uric acid linked to later risk for irregular heart rhythm
- World Journal of Gastroenterology | The role of uric acid in non-alcoholic steatohepatitis development
How can we reduce our uric acid levels?
Uric acid is produced when we metabolize purine nucleotides, which are found in many kinds of food. We can therefore reduce our uric acid levels by reducing our purine intake, as well as things that mess up our liver’s ability to detoxify things. Offsetting the values for confounding variables (such as fiber content, or phytochemicals that mitigate the harm), the worst offenders include…
Liver-debilitating things:
- Alcohol (especially beer)
- High-fructose corn syrup (and other fructose-containing things that aren’t actual fruit)
- Other refined sugars
- Wheat / white flour products (this is why beer is worse than wine, for example; it’s a double-vector hit)
Purine-rich things:
- Red meats and game
- Organ meats
- Oily fish, and seafood (great for some things; not great for this)
Some beans and legumes are also high in purines, but much like real fruit has a neutral or positive effect on blood sugar health despite its fructose content, the beans and legumes that are high in purines, also contain phytochemicals that help lower uric acid levels, so have a beneficial effect.
Eggs (consumed in moderation) and tart cherries have a uric-acid lowering effect.
Water is important for all aspects of health, and doubly important for this.
Hydrate well!
Lifestyle matters beyond diet
The main key here is metabolic health, so Dr. Perlmutter advises the uncontroversial lifestyle choices of moderate exercise and good sleep, as well as (more critically) intermittent fasting. We wrote previously on other things that can benefit liver health:
…in this case, that means the liver gets a break to recuperate (something it’s very good at, but does need to get a chance to do), which means that while you’re not giving it something new to do, it can quickly catch up on any backlog, and then tackle any new things fresh, next time you start eating.
Want to know more about this from Dr. Perlmutter?
You might like his article:
An Integrated Plan for Lowering Uric Acid ← more than we had room for here; he also talks about extra things to include in your diet/supplementation regime for beneficial effects!
And/or his book:
…on which much of today’s main feature was based.
Take care!
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The Menopause Risk That Nobody Talks About
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In this week’s health news round up, we cover menopausal disordered eating, air pollution & Alzheimer’s, and cold sore comebacks:
When the body starts changing…
Eating disorders are often thought of as a “teenage girl thing”. But in fact, eating disorders in girls/women mostly occur along with “the three Ps”:
- Puberty
- Pregnancy
- Perimenopause & menopause
In very many cases, it’s likely “my body is changing and I have strong opinions on how it should be”. Those opinions are often reflective of societal norms and pressures, but still, they are earnestly felt also. In the case of pregnancy, the societal pressures and standards are generally lifted while pregnant, but come back immediately postpartum, with an expectation to rebound quickly into the same shape one was in beforehand. And in the case of menopause, this is often concurrent with a sense of loss of identity, and can be quite reactionary against what is generally considered to be the ravages of time.
Of course, looking after one’s health is great at any age, and certainly there is no reason not to pursue health goals and try to get one’s body the way one wants it. However, it is all-too-easy for people to fall into the trap of taking drastic steps that are not actually that healthy, in the hopes of quick results.
Further, 13% of women over 50 report current core eating disorder symptoms, and that is almost certain vastly underreported.
Read in full: Eating disorders don’t just affect teen girls—the risk may also go up around pregnancy and menopause
Related: Body Image Dissatisfaction/Appreciation Across The Ages From Age 16 To Age 88
Where there’s smoke…
It’s been known for a while that air pollution is strongly associated with Alzheimer’s disease incidence, but exactly how this happens has not been entirely clear, beyond that it involves S-nitrosylation, in which NO-related particles bind to sulfur (S) atoms, forming SNO (and scientists being how they are, the term for the resultant brain effect has been called a SNO-STORM).
However, researchers have now found that it has to do with how certain toxins in the air (notwithstanding our heading here, they don’t have to be smoke—it can be household chemicals or other things too) cause this resultant SNO to interfere with protein CRTC1, which is critical for forming/maintaining connections between brain cells.
This is important, because it means that if a drug can be made that selectively blocks S-nitrosylatoin actions affecting CRTC1, it can reverse a lot of Alzheimer’s brain damage (as was found in the laboratory, when testing the theory with CRTC1 proteins that had been genetically engineered to resist S-nitrosylation, which is not something we can do with living human brains yet, but it is “proof of principle” and means funding will likely be forthcoming to find drugs to do the same thing).
Read in full: Study reveals how air pollution contributes to Alzheimer’s disease
Related: 14 Powerful Strategies To Prevent Dementia
The virus that comes back from the cold
Cold sores are created by the Herpes simplex virus (yes, the same one as for the genital variety), and by adulthood, most of us are either infected (and periodically get cold sores), or else infected (as an asymptomatic carrier). A noteworthy minority, but a minority nevertheless, are immune. Unless you’ve never had physical contact with other humans, it’s highly unlikely you’re not in one of the above three categories.
For those who do get cold sores, they can seem random in their reoccurrence, but in reality the virus never went away; it was just dormant for a while.
This much was known already, but scientists have now identified the trigger protein (known as “UL 12.5” to its friends) that acts as an alarm clock for the virus—which may pave the way to a greatly-improved treatment, if a way can be found to safely interfere with that wake-up call:
Read in full: Cold sore discovery identifies unknown trigger for those annoying flare-ups
Related: Beyond Supplements: The Real Immune-Boosters!
Take care!
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The Gym For Your Mental Health
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Getting The Most Out Of Therapy
If you’ve never had therapy, what image do you have of it? Perhaps you imagine a bearded and bespectacled man in a suit, impassively making notes on a clipboard. Perhaps you imagine an empathetic woman, with tissues and camomile tea on standby.
The reality is: the experience of therapy can vary, a lot.
In its results, too! Sometimes we may try therapy and think “well that was a waste of time and money”. Sometimes we may try therapy and it’ll change our life.
So… Is there any way to make it less of a lottery?
First: knowledge is power
And while the therapist-client relationship certainly shouldn’t be a power struggle, you do want to be empowered.
So, read about different styles of therapy, and also, read some how-to guides for self-therapy. We’ve recommended some before in previous editions of 10almonds; you can check those books out here:
- How to Be Your Own Therapist: Boost your mood and reduce your anxiety in 10 minutes a day – by Owen O’Kane
- You Are the One You’ve Been Waiting For: Applying Internal Family Systems to Intimate Relationships – by Dr. Richard Schwartz
- DBT Made Simple: A Step-by-Step Guide to Dialectical Behavior Therapy – by Sheri van Dijk
- How to Do the Work: Recognize Your Patterns, Heal from Your Past, and Create Your Self – by Dr. Nicole LaPera
This will serve two purposes:
- You’ll know what to expect out of a therapist
- You can more efficiently “get to work” in therapy
It also, of course, could help you already, without even going to therapy!
Second: begin with the end in mind
A person who does not know what they want to get out of therapy, will likely not get much out of therapy. Or rather, their first task will be to figure that out. So, figure it out in advance, if you can.
Maybe you have a problem that has a specific name, for example poor self-esteem, anxiety, stress, depression, trauma, neuroticism, phobia, etc.
This isn’t Alcoholics Anonymous, and in this case you don’t want a lifetime of “Hello, my name is ______ and I have ______”, if you can help it.
So, what do you want?
- Maybe you want to be able to go to social events without feeling anxious
- Maybe you want your relationship(s) to be more secure and fulfilling
- Maybe you want to no longer have nightmares about that traumatic thing
- Maybe you want to be able to greet each day’s tasks with confidence and without overwhelm
…etc.
A good therapist will help you to set such goals (if you haven’t already), and attain them.
If you’re going the self-therapy route, then this is your job now!
It will probably start with the question: imagine that everything currently troubling you is now healed.
What would that look like, to you?
Third: get a good match for you
Unless you are going entirely the self-therapy route (which can work for some), you will want a therapist who’s a good match for you.
It may take a degree of “suck it and see” trial runs before you find the right one, but that takes time and money, so you’ll want to streamline the process as much as you can. If you do this well, you may be able to find a good therapist for you first time.
For this, personal recommendations (such as from friends) may help more than exmaining academic and institutional affiliations.
Yes, you want a well-qualified therapist who is a member in good standing of a respectable regulated body… but whether your therapist is easy for you to “get on with” will matter at least as much as whether their approach is psychodynamic, or 4th wave CBT, or IFS, or whatever seems popular in your time and place.
Bear in mind:
- Some therapists are specialized in helping with some kinds of things and not others. It will obviously help if the therapist you choose is specialized in the thing you are seeking help for.
- Some therapists may be able to relate to you better (or not), based on simple factors of who they are. To this end, while your therapist certainly doesn’t have to be a mirror image of you, factors like age, gender, race, etc can be relevant and may be worth considering, depending on what you are seeking help with, and what factors impact that thing.
Prefer keeping things to yourself?
Therapy isn’t for everyone, but having a good relationship with oneself definitely is. You might want to invest in one of the books whose reviews we linked above, and you might also get value from previous Psychology Sunday articles, which you can find in our archive (every seventh edition here has a Psychology Sunday main feature):
Click Here To Check Out The 10almonds Archive
To borrow the catchphrase of Dr. Kirk Honda (a therapist and therapy educator with decades of experience):
❝Take care of yourself, because you deserve it; you really, really do.❞
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From eye exams to blood tests and surgery: how doctors use light to diagnose disease
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This is the next article in our ‘Light and health’ series, where we look at how light affects our physical and mental health in sometimes surprising ways. Read other articles in the series.
You’re not feeling well. You’ve had a pounding headache all week, dizzy spells and have vomited up your past few meals.
You visit your GP to get some answers and sit while they shine a light in your eyes, order a blood test and request some medical imaging.
Everything your GP just did relies on light. These are just some of the optical technologies that have had an enormous impact in how we diagnose disease.
megaflopp/Shutterstock 1. On-the-spot tests
Point-of-care diagnostics allow doctors to test patients on the spot and get answers in minutes, rather than sending samples to a lab for analysis.
The “flashlight” your GP uses to view the inside of your eye (known as an ophthalmoscope) is a great example. This allows doctors to detect abnormal blood flow in the eye, deformations of the cornea (the outermost clear layer of the eye), or swollen optical discs (a round section at the back of the eye where the nerve link to the brain begins). Swollen discs are a sign of elevated pressure inside your head (or in the worst case, a brain tumour) that could be causing your headaches.
The invention of lasers and LEDs has enabled many other miniaturised technologies to be provided at the bedside or clinic rather than in the lab.
Pulse oximetry is a famous example, where a clip attached to your finger reports how well your blood is oxygenated. It does this by measuring the different responses of oxygenated and de-oxygenated blood to different colours of light.
Pulse oximetry is used at hospitals (and sometimes at home) to monitor your respiratory and heart health. In hospitals, it is also a valuable tool for detecting heart defects in babies.
See that clip on the patient’s finger? That’s a pulse oximeter, which relies on light to monitor respiratory and heart health. CGN089/Shutterstock 2. Looking at molecules
Now, back to that blood test. Analysing a small amount of your blood can diagnose many different diseases.
A machine called an automated “full blood count analyser” tests for general markers of your health. This machine directs focused beams of light through blood samples held in small glass tubes. It counts the number of blood cells, determines their specific type, and reports the level of haemoglobin (the protein in red blood cells that distributes oxygen around your body). In minutes, this machine can provide a snapshot of your overall health.
For more specific disease markers, blood serum is separated from the heavier cells by spinning in a rotating instrument called a centrifuge. The serum is then exposed to special chemical stains and enzyme assays that change colour depending on whether specific molecules, which may be the sign of a disease, are present.
These colour changes can’t be detected with the naked eye. However, a light beam from an instrument called a spectrometer can detect tiny amounts of these substances in the blood and determine if the biomarkers for diseases are present, and at what levels.
Light shines through the blood sample and tells us whether biomarkers for disease are present. angellodeco/Shutterstock 3. Medical imaging
Let’s re-visit those medical images your GP ordered. The development of fibre-optic technology, made famous for transforming high-speed digital communications (such as the NBN), allows light to get inside the body. The result? High-resolution optical imaging.
A common example is an endoscope, where fibres with a tiny camera on the end are inserted into the body’s natural openings (such as your mouth or anus) to examine your gut or respiratory tracts.
Surgeons can insert the same technology through tiny cuts to view the inside of the body on a video screen during laparoscopic surgery (also known as keyhole surgery) to diagnose and treat disease.
Doctors can insert this flexible fibre-optic tube with a camera on the end into your body. Eduard Valentinov/Shutterstock How about the future?
Progress in nanotechnology and a better understanding of the interactions of light with our tissues are leading to new light-based tools to help diagnose disease. These include:
- nanomaterials (materials on an extremely small scale, many thousands of times smaller than the width of a human hair). These are being used in next-generation sensors and new diagnostic tests
- wearable optical biosensors the size of your fingernail can be included in devices such as watches, contact lenses or finger wraps. These devices allow non-invasive measurements of sweat, tears and saliva, in real time
- AI tools to analyse how blood serum scatters infrared light. This has allowed researchers to build a comprehensive database of scatter patterns to detect any cancer
- a type of non-invasive imaging called optical coherence tomography for more detailed imaging of the eye, heart and skin
- fibre optic technology to deliver a tiny microscope into the body on the tip of a needle.
So the next time you’re at the GP and they perform (or order) some tests, chances are that at least one of those tests depend on light to help diagnose disease.
Matthew Griffith, Associate Professor and ARC Future Fellow and Director, UniSA Microscopy and Microanalysis Facilities, University of South Australia
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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The Medicinal Properties Of Bay Leaves
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The humble bay leaf has more uses than just culinary!
How about for hair growth?
Popularly recommended on social media with the promise of long and glowing hair… Guess how many scientific studies back up this claim!
If you guessed zero, you guessed correctly. At least, we were not able to find any. In fact, the only paper on the entirety of PubMed (a large online database of available scientific literature from most, if not all, reputable scientific journals) to return a hit for the search string “bay leaf hair growth” was this one:
You may notice that that has nothing to do with hair growth, and rather returned the hit because the acne bacteria are known to “proliferate within sebum-blocked skin hair follicles”.
So let’s talk about that instead:
Against acne & skin inflammation
Well, for that, it works! The research that we mentioned above concluded that:
❝LNE significantly suppressed the expression of P. acnes-mediated proinflammatory cytokines, such as IL-1β, IL-6, and NLRP3. We also found that LNE inhibited the inflammatory transcription factor NF-κB in response to P. acnes. In addition, eucalyptol, which is the main constituent of LNE, consistently inhibited P. acnes-induced inflammatory signaling pathways. Moreover, LNE significantly ameliorated P. acnes-induced inflammation in a mouse model of acne. We suggest for the first time that LNE hold therapeutic value for the improvement of P. acnes-induced skin inflammation.❞
LNE = Laurus nobilis extract, i.e. bay leaf extract
Now, that’s all about acne-induced skin inflammation, but what about other kinds?
Against inflammation in general
Bay leaves have an abundance of antioxidant polyphenols, and what’s good against oxidation is good against inflammation. For example:
Laurus nobilis leaf extract controls inflammation by suppressing NLRP3 inflammasome activation
That anti-inflammatory action is more than skin-deep though, because…
Against IBD / ulcerative colitis
It’s good for the gut, too, for example in this study (with mice, but the bacteria affected are the same as we have), which found:
❝…bay leaves showed the best treatment effects on gut microbiota compositions; promoting the growth of Bifidobacteria and Lactobacillus in addition to producing high butyric acid levels. Meanwhile, the number of Clostridium and sulfate-reducing bacteria was significantly reduced. Conclusively, consuming bay leaves brought significant colon health benefits other than stimulating appetite for a better taste.❞
Note that all of those gut-related changes are beneficial to us, increasing things that are best increased, and reducing things that are best reduced.
Against diabetes
It’s good for the blood—and for the heart, but more on that later. First, about diabetes:
❝All three levels of bay leaves reduced serum glucose with significant decreases ranging from 21 to 26% after 30 d.
Total cholesterol decreased, 20 to 24%, after 30 days with larger decreases in low density lipoprotein (LDL) cholesterol of 32 to 40%. High density lipoprotein (HDL) cholesterol increased 29 and 20% in the groups receiving 1 and 2 g of bay leaves, respectively. Triglycerides also decreased 34 and 25% in groups consuming 1 and 2 g of bay leaves, respectively, after 30 d. There were no significant changes in the placebo group.
In summary, this study demonstrates that consumption of bay leaves, 1 to 3 g/d for 30 days, decreases risk factors for diabetes and cardiovascular diseases and suggests that bay leaves may be beneficial for people with type 2 diabetes.❞
Again, all those changes are good:
Bay Leaves Improve Glucose and Lipid Profile of People with Type 2 Diabetes
Good for the heart
This one’s quite straight forward. Bay leaf tea is indeed good for the heart,
- Literally: Evaluation of Daily Laurus nobilis Tea Consumption on Lipid Profile Biomarkers in Healthy Volunteers
- Metaphorically: Evaluation of daily Laurus nobilis tea consumption on anxiety and stress biomarkers in healthy volunteers
Of course, even that latter is also good for the heart literally, just, indirectly, by reducing anxiety and stress, thus indirectly benefiting the heart itself.
But even before that, it’s already very directly beneficial to cardiovascular health, per its significant improvements to the lipid profile.
Anything else?
So much else, but there’s only so much we can feature in one day, so if you’d like to learn more, we recommend this very comprehensive paper:
…which discusses many benefits in considerable detail, including…
❝The LN leaves have various biological activities, such as antioxidant, wound healing, antibacterial, analgesic, and anti-inflammatory activities. However, oxidative stress, cancer, diabetes, microbial infections, and inflammatory diseases are closely linked. The objective of this research is to characterize Laurus nobilis (LN) aromatic oil (AO) and evaluate its antioxidant, antidiabetic, antiobesity, antimicrobial, and antimutagenic bioactivities.
The plant AO showed potent antioxidant activity (IC50 = 2.2 ± 1.38) and has moderate anti-amylase (IC50 = 60.25 ± 1.25), anti-glucosidase (IC50 = 131.82 ± 0.1), and antilipase (IC50 = 83.17 ± 0.06) activities.
Moreover, LNAO showed potent antimicrobial activity against Staphylococcus aureus, Escherichia coli, Klebsiella pneumonia, Proteus vulgaris (MICs = 1.56 µg/mL), methicillin-resistant Staphylococcus aureus (MRSA) (MIC = 3.125 µg/mL) and Candida albicans (MIC = 0.195 µg/mL). The cytotoxicity results demonstrated that at a concentration of 1 mg/mL, LNAO has potent breast cancer (MCF-7), and hepatocellular carcinoma (Hep 3B) cancer cells inhibitory activities of 98% and 95%, respectively.
Importantly, we are the first to show that LNAO significantly hinders hepatocellular carcinoma spheroids’ formation capacity in a 3D model.
These results show that LNAO is a promising natural source with powerful antioxidant, antidiabetic, anticancer, and antimicrobial activities that could be exploited in the future to treat a variety of diseases.❞
Want to try some?
We don’t sell it, but you can buy leaves from your local supermarket and make bay leaf tea, or alternatively, if you prefer essential oil form, here for your convenience is an example product on Amazon 😎
Enjoy!
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