What’s Lurking In Your Household Air?
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As individuals, we can’t do much about the outside air. We can try to spend more time in green spaces* and away from traffic, and we can wear face-masks—as was popular in Tokyo and other such large cities long before the pandemic struck.
*The well-known mental health benefits aside (and contrary to British politician Amber Rudd’s famous assertion in a televised political debate that “clean air doesn’t grow on trees”), clean air comes mostly from trees—their natural process of respiration scrubs not only carbon dioxide, but also pollutants, from the air before releasing oxygen without the pollutants. Neat!
See also this study: Site new care homes near trees and away from busy roads to protect residents’ lungs
We are fortunate to be living in a world where most of us in industrialized countries can exercise a great degree of control over our home’s climate. But, what to do with all that power?
Temperature
Let’s start with the basics. Outside temperature may vary, but you probably have heating and air conditioning. There’s a simple answer here; the optimal temperature for human comfort and wellbeing is 20℃ / 68℉:
Scientists Identify a Universal Optimal Temperature For Life on Earth
Note: this does not mean that that is the ideal global average temperature, because that would mean the polar caps are completely gone, the methane stored there released, many large cities underwater, currently hot places will be too hot for human life (e.g. outside temperatures above human body temperature), there will be mass extinctions of many kinds of animals and plants, including those we humans require for survival, and a great proliferation of many bugs that will kill us. Basically we need diversity for the planet to survive, arctic through to tropical and yes, even deserts (deserts are important carbon sinks!). The ideal global average temperature is about 14℃ (we currently have about 15℃ and rising).
But, for setting the thermostat in your home, 20℃ / 68℉ is perfect for most people, though down as far as 17℃ / 61℉ is fine too, provided other things such as humidity are in order. In fact, for sleeping, 18℃ / 62℉ is ideal. This is because the cooler temperature is one of the several things that tell our brain it is nighttime now, and thus trigger secretion of melatonin.
If you’re wondering about temperatures and respiratory viruses, by the way, check out:
The Cold Truth About Respiratory Infections: The Pathogens That Came In From The Cold
Humidity
Most people pay more attention to the temperature in their home than the humidity, and the latter is just as important:
❝Conditions that fall outside of the optimal range of 40–60% can have significant impacts on health, including facilitating infectious transmission and exacerbating respiratory diseases.
When humidity is too low, it can cause dryness and irritation of the respiratory tract and skin, making individuals more susceptible to infections.
When humidity is too high, it can create a damp environment that encourages the growth of harmful microorganisms like mould, bacteria, and viruses.❞
~ Dr. Gabriella Guarnieri et al.
So, if your average indoor humidity falls outside of that range, consider getting a humidifier or dehumidifier, to correct it. Example items on Amazon, for your convenience:
Humidity monitor | Humidifier | Dehumidifier
See also, about a seriously underestimated killer:
Pneumonia: Prevention Is Better Than Cure
Now, one last component to deal with, for perfect indoor air:
Pollution
We tend to think of pollution as an outdoors thing, and indeed, the pollution in your home will (hopefully!) be lower than that of a busy traffic intersection. However…
- The air you have inside comes from outside, and that matters if you’re in an urban area
- Even in suburban and rural areas, general atmospheric pollutants will reach you, and if you’ve ever been subject to wildfire smoke, you’ll know that’s no fun either.
- Gas appliances in the home cause indoor pollution, even when carbon monoxide is within levels considered acceptable. This polluting effect is much stronger for open gas flames (such as on gas cookers/stoves, or gas fires), than for closed gas heating systems (such as a gas-powered boiler for central heating).
- Wood stoves/fireplaces are not an improvement, in fact they are worse, and don’t get us started on coal. You should not be breathing these things, and definitely should not be burning them in an enclosed space.
- That air conditioning, humidifier, dehumidifier? They may be great for temperature and humidity, but please clean/change the filter more often than you think is necessary, or things will grow there and then your device will be adding pathogens to the air as it goes.
- Plug-in air-freshening devices? They may smell clean, but they are effectively spraying cleaning fluids into your lungs. So please don’t.
So, what of air purifiers? They can definitely be of benefit. for example:
But watch out! Because if you don’t clean/change the filter regularly, guess what happens! That’s right, it’ll be colonized with bacteria/fungus and then be blowing those at you.
And no, not all of them will be visible to the naked eye:
Is Unnoticed Environmental Mold Harming Your Health?
Taking a holistic approach
The air is a very important factor for the health of your lungs (and thus, for the health of everything that’s fed oxygen by your lungs), but there are more things we can do as well:
Seven Things To Do For Good Lung Health!
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Horse Sedative Use Among Humans Spreads in Deadly Mixture of ‘Tranq’ and Fentanyl
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TREASURE ISLAND, Fla. — Andrew McClave Jr. loved to lift weights. The 6-foot-4-inch bartender resembled a bodybuilder and once posed for a photo flexing his muscles with former pro wrestler Hulk Hogan.
“He was extremely dedicated to it,” said his father, Andrew McClave Sr., “to the point where it was almost like he missed his medication if he didn’t go.”
But the hobby took its toll. According to a police report, a friend told the Treasure Island Police Department that McClave, 36, suffered from back problems and took unprescribed pills to reduce the pain.
In late 2022, the friend discovered McClave in bed. He had no pulse. A medical examiner determined he had a fatal amount of fentanyl, cocaine, and xylazine, a veterinary tranquilizer used to sedate horses, in his system, an autopsy report said. Heart disease was listed as a contributing factor.
McClave is among more than 260 people across Florida who died in one year from accidental overdoses involving xylazine, according to a Tampa Bay Times analysis of medical examiner data from 2022, the first year state officials began tracking the substance. Numbers for 2023 haven’t been published.
The death toll reflects xylazine’s spread into the nation’s illicit drug supply. Federal regulators approved the tranquilizer for animals in the early 1970s and it’s used to sedate horses for procedures like oral exams and colic treatment, said Todd Holbrook, an equine medicine specialist at the University of Florida. Reports of people using xylazine emerged in Philadelphia, then the drug spread south and west.
What’s not clear is exactly what role the sedative plays in overdose deaths, because the Florida data shows no one fatally overdosed on xylazine alone. The painkiller fentanyl was partly to blame in all but two cases in which the veterinary drug was included as a cause of death, according to the Times analysis. Cocaine or alcohol played roles in the cases in which fentanyl was not involved.
Fentanyl is generally the “800-pound gorilla,” according to Lewis Nelson, chair of the emergency medicine department at Rutgers New Jersey Medical School, and xylazine may increase the risk of overdose, though not substantially.
But xylazine appears to complicate the response to opioid overdoses when they do happen and makes it harder to save people. Xylazine can slow breathing to dangerous levels, according to federal health officials, and it doesn’t respond to the overdose reversal drug naloxone, often known by the brand name Narcan. Part of the problem is that many people may not know they are taking the horse tranquilizer when they use other drugs, so they aren’t aware of the additional risks.
Lawmakers in Tallahassee made xylazine a Schedule 1 drug like heroin or ecstasy in 2016, and several other states including Pennsylvania, Ohio, and West Virginia have taken action to classify it as a scheduled substance, too. But it’s not prohibited at the federal level. Legislation pending in Congress would criminalize illicit xylazine use nationwide.
The White House in April designated the combination of fentanyl and xylazine, often called “tranq dope,” as an emerging drug threat. A study of 20 states and Washington, D.C., found that overdose deaths attributed to both illicit fentanyl and xylazine exploded from January 2019 to June 2022, jumping from 12 a month to 188.
“We really need to continue to be proactive,” said Amanda Bonham-Lovett, program director of a syringe exchange in St. Petersburg, “and not wait until this is a bigger issue.”
‘A Good Business Model’
There are few definitive answers about why xylazine use has spread — and its impact on people who consume it.
The U.S. Drug Enforcement Administration in September said the tranquilizer is entering the country in several ways, including from China and in fentanyl brought across the southwestern border. The Florida attorney general’s office is prosecuting an Orange County drug trafficking case that involves xylazine from a New Jersey supplier.
Bonham-Lovett, who runs IDEA Exchange Pinellas, the county’s anonymous needle exchange, said some local residents who use drugs are not seeking out xylazine — and don’t know they’re consuming it.
One theory is that dealers are mixing xylazine into fentanyl because it’s cheap and also affects the brain, Nelson said.
“It’s conceivable that if you add a psychoactive agent to the fentanyl, you can put less fentanyl in and still get the same kick,” he said. “It’s a good business model.”
In Florida, men accounted for three-quarters of fatal overdoses involving xylazine, according to the Times analysis. Almost 80% of those who died were white. The median age was 42.
Counties on Florida’s eastern coast saw the highest death tolls. Duval County topped the list with 46 overdoses. Tampa Bay recorded 19 fatalities.
Cocaine was also a cause in more than 80 cases, including McClave’s, the Times found. The DEA in 2018 warned of cocaine laced with fentanyl in Florida.
In McClave’s case, Treasure Island police found what appeared to be marijuana and a small plastic bag with white residue in his room, according to a police report. His family still questions how he took the powerful drugs and is grappling with his death.
He was an avid fisherman, catching snook and grouper in the Gulf of Mexico, said his sister, Ashley McClave. He dreamed of being a charter boat captain.
“I feel like I’ve lost everything,” his sister said. “My son won’t be able to learn how to fish from his uncle.”
Mysterious Wounds
Another vexing challenge for health officials is the link between chronic xylazine use and open wounds.
The wounds are showing up across Tampa Bay, needle exchange leaders said. The telltale sign is blackened, crusty tissue, Bonham-Lovett said. Though the injuries may start small — the size of a dime — they can grow and “take over someone’s whole limb,” she said.
Even those who snort fentanyl, instead of injecting it, can develop them. The phenomenon is unexplained, Nelson said, and is not seen in animals.
IDEA Exchange Pinellas has recorded at least 10 cases since opening last February, Bonham-Lovett said, and has a successful treatment plan. Staffers wash the wounds with soap and water, then dress them.
One person required hospitalization partly due to xylazine’s effects, Bonham-Lovett said. A 31-year-old St. Petersburg woman, who asked not to be named due to concerns over her safety and the stigma of drug use, said she was admitted to St. Anthony’s Hospital in 2023. The woman, who said she uses fentanyl daily, had a years-long staph infection resistant to some antibiotics, and a wound recently spread across half her thigh.
The woman hadn’t heard of xylazine until IDEA Exchange Pinellas told her about the drug. She’s thankful she found out in time to get care.
“I probably would have lost my leg,” she said.
This article was produced in partnership with the Tampa Bay Times.
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.
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Oscar contender Poor Things is a film about disability. Why won’t more people say so?
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Readers are advised this article includes an offensive and outdated disability term in a quote from the film.
Poor Things is a spectacular film that has garnered critical praise, scooped up awards and has 11 Oscar nominations. That might be the problem. Audiences become absorbed in another world, so much so our usual frames of reference disappear.
There has been much discussion about the film’s feminist potential (or betrayal). What’s not being talked about in mainstream reviews is disability. This seems strange when two of the film’s main characters are disabled.
Set in a fantasy version of Victorian London, unorthodox Dr Godwin Baxter (William Dafoe) finds the just-dead body of a heavily pregnant woman in the Thames River. In keeping with his menagerie of hybrid animals, Godwin removes the unborn baby’s brain and puts it into the skull of its mother, who becomes Bella Baxter (Emma Stone).
Is Bella really disabled?
Stone has been praised for her ability to embody a small child who rapidly matures into a hypersexual person – one who has not had time to absorb the restrictive rules of gender or patriarchy.
But we also see a woman using her behaviour to express herself because she has complex communication barriers. We see a woman who is highly sensitive and responsive to the sensory world around her. A woman moving through and seeing the world differently – just like the fish-eye lens used in many scenes.
Women like this exist and they have historically been confined, studied and monitored like Bella. When medical student Max McCandless (Ramy Youssef) first meets Bella, he offensively exclaims “what a very pretty retard!” before being told the truth and promptly declared her future husband.
Even if Bella is not coded as disabled through her movements, speech and behaviour, her onscreen creator and guardian is. Godwin Baxter has facial differences and other impairments which require assistive technology.
So ignoring disability as a theme of the film seems determined and overt. The absurd humour for which the film is being lauded is often at Bella’s “primitive”, “monstrous” or “damaged” actions: words which aren’t usually used to describe children, but have been used to describe disabled people throughout history.
In reviews, Bella’s walk and speech are compared to characters like the Scarecrow in The Wizard of Oz, rather than a disabled woman. So why the resistance?
Freak shows and displays
Disability studies scholar Rosemarie Gardland-Thomson writes “the history of disabled people in the Western world is in part the history of being on display”.
In the 19th century, when Poor Things is set, “freak shows” featuring disabled people, Indigenous people and others with bodily differences were extremely popular.
Doctors used freak shows to find specimens – like Joseph Merrick (also known as the Elephant Man and later depicted on screen) who was used for entertainment before he was exhibited in lecture halls. In the mid-1800s, as medicine became a profession, observing the disabled body shifted from a public spectacle to a private medical gaze that labelled disability as “sick” and pathologised it.
Poor Things doesn’t just circle around these discourses of disability. Bella’s body is a medical experiment, kept locked away for the private viewing of male doctors who take notes about her every move in small pads. While there is something glorious, intimate and familiar about Bella’s discovery of her own sexual pleasure, she immediately recognises it as worth recording in the third person:
I’ve discovered something that I must share […] Bella discover happy when she want!
The film’s narrative arc ends with Bella herself training to be a doctor but one whose more visible disabilities have disappeared.
Framing charity and sexual abuse
Even the film’s title is an expression often used to describe disabled people. The charity model of disability sees disabled people as needing pity and support from others. Financial poverty is briefly shown at a far-off port in the film and Bella initially becomes a sex worker in Paris for money – but her more pressing concern is sexual pleasure.
Disabled women’s sexuality is usually seen as something that needs to be controlled. It is frequently assumed disabled women are either hypersexual or de-gendered and sexually innocent.
In the real world disabled people experience much higher rates of abuse, including sexual assault, than others. Last year’s Royal Commission into Violence, Abuse, Neglect and Exploitation of People with Disability found women with disability are nearly twice as likely as women without disability to have been assaulted. Almost a third of women with disability have experienced sexual assault by the age of 15. Bella’s hypersexual curiosity appears to give her some layer of protection – but that portrayal denies the lived experience of many.
Watch but don’t ignore
Poor Things is a stunning film. But ignoring disability in the production ignores the ways in which the representation of disabled bodies play into deep and historical stereotypes about disabled people.
These representations continue to shape lives.
Louisa Smith, Senior lecturer, Deakin University; Gemma Digby, Lecturer – Health & Social Development, Deakin University, and Shane Clifton, Associate Professor of Practice, School of Health Sciences and the Centre for Disability Research and Policy, University of Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Brain Maker – by Dr. David Perlmutter
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Regular 10almonds readers probably know about the gut-brain connection already, so what’s new here?
Dr. David Perlmutter takes us on a tour of gut and brain health, specifically, the neuroprotective effect of healthy gut microbiota.
This seems unlikely! After all, vagus nerve or no, the gut microbiota are confined to the gut, and the brain is kept behind the blood-brain barrier. So how does one thing protect the other?
Dr. Perlmutter presents the relevant science, and the honest answer is, we’re not 100% sure how this happens! We do know part of it: that bad gut microbiota can result in a “leaky gut”, and that may in turn lead to such a thing as a “leaky brain”, where the blood-brain barrier has been compromised and some bad things can get in with the blood.
When it comes to gut-brain health…
Not only is the correlation very strong, but also, in tests where someone’s gut microbiota underwent a radical change, e.g. due to…
- antibiotics (bad)
- fasting (good)
- or a change in diet (either way)
…their brain health changed accordingly—something we can’t easily check outside of a lab, but was pretty clear in those tests.
We’re also treated to an exposé on the links between gut health, brain health, inflammation, and dementia… Which links are extensive.
In closing, we’ll mention that throughout this book we’re also given many tips and advices to improve our gut/brain health, reverse damage done already, and set ourselves up well for the future.
Click here to check out “Brain Maker” on Amazon and take care of this important part of your health!
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Can you drink your fruit and vegetables? How does juice compare to the whole food?
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Do you struggle to eat your fruits and vegetables? You are not alone. Less than 5% of Australians eat the recommended serves of fresh produce each day (with 44% eating enough fruit but only 6% eating the recommended vegetables).
Adults should aim to eat at least five serves of vegetables (or roughly 375 grams) and two serves of fruit (about 300 grams) each day. Fruits and vegetables help keep us healthy because they have lots of nutrients (vitamins, minerals and fibre) and health-promoting bioactive compounds (substances not technically essential but which have health benefits) without having many calories.
So, if you are having trouble eating the rainbow, you might be wondering – is it OK to drink your fruits and vegetables instead in a juice or smoothie? Like everything in nutrition, the answer is all about context.
It might help overcome barriers
Common reasons for not eating enough fruits and vegetables are preferences, habits, perishability, cost, availability, time and poor cooking skills. Drinking your fruits and vegetables in juices or smoothies can help overcome some of these barriers.
Juicing or blending can help disguise tastes you don’t like, like bitterness in vegetables. And it can blitz imperfections such as bruises or soft spots. Preparation doesn’t take much skill or time, particularly if you just have to pour store-bought juice from the bottle. Treating for food safety and shipping time does change the make up of juices slightly, but unsweetened juices still remain significant sources of nutrients and beneficial bioactives.
Juicing can extend shelf life and reduce the cost of nutrients. In fact, when researchers looked at the density of nutrients relative to the costs of common foods, fruit juice was the top performer.
So, drinking my fruits and veggies counts as a serve, right?
How juice is positioned in healthy eating recommendations is a bit confusing. The Australian Dietary Guidelines include 100% fruit juice with fruit but vegetable juice isn’t mentioned. This is likely because vegetable juices weren’t as common in 2013 when the guidelines were last revised.
The guidelines also warn against having juice too often or in too high amounts. This appears to be based on the logic that juice is similar, but not quite as good as, whole fruit. Juice has lower levels of fibre compared to fruits, with fibre important for gut health, heart health and promoting feelings of fullness. Juice and smoothies also release the sugar from the fruit’s other structures, making them “free”. The World Health Organization recommends we limit free sugars for good health.
But fruit and vegetables are more than just the sum of their parts. When we take a “reductionist” approach to nutrition, foods and drinks are judged based on assumptions made about limited features such as sugar content or specific vitamins.
But these features might not have the impact we logically assume because of the complexity of foods and people. When humans eat varied and complex diets, we don’t necessarily need to be concerned that some foods are lower in fibre than others. Juice can retain the nutrients and bioactive compounds of fruit and vegetables and even add more because parts of the fruit we don’t normally eat, like the skin, can be included.
So, it is healthy then?
A recent umbrella review of meta-analyses (a type of research that combines data from multiple studies of multiple outcomes into one paper looked at the relationship between 100% juice and a range of health outcomes.
Most of the evidence showed juice had a neutral impact on health (meaning no impact) or a positive one. Pure 100% juice was linked to improved heart health and inflammatory markers and wasn’t clearly linked to weight gain, multiple cancer types or metabolic markers (such as blood sugar levels).
Some health risks linked to drinking juice were reported: death from heart disease, prostate cancer and diabetes risk. But the risks were all reported in observational studies, where researchers look at data from groups of people collected over time. These are not controlled and do not record consumption in the moment. So other drinks people think of as 100% fruit juice (such as sugar-sweetened juices or cordials) might accidentally be counted as 100% fruit juice. These types of studies are not good at showing the direct causes of illness or death.
What about my teeth?
The common belief juice damages teeth might not stack up. Studies that show juice damages teeth often lump 100% juice in with sweetened drinks. Or they use model systems like fake mouths that don’t match how people drinks juice in real life. Some use extreme scenarios like sipping on large volumes of drink frequently over long periods of time.
Juice is acidic and does contain sugars, but it is possible proper oral hygiene, including rinsing, cleaning and using straws can mitigate these risks.
Again, reducing juice to its acid level misses the rest of the story, including the nutrients and bioactives contained in juice that are beneficial to oral health.
So, what should I do?
Comparing whole fruit (a food) to juice (a drink) can be problematic. They serve different culinary purposes, so aren’t really interchangeable.
The Australian Guide to Healthy Eating recommends water as the preferred beverage but this assumes you are getting all your essential nutrients from eating.
Where juice fits in your diet depends on what you are eating and what other drinks it is replacing. Juice might replace water in the context of a “perfect” diet. Or juice might replace alcohol or sugary soft drinks and make the relative benefits look very different.
On balance
Whether you want to eat your fruits and vegetables or drink them comes down to what works for you, how it fits into the context of your diet and your life.
Smoothies and juices aren’t a silver bullet, and there is no evidence they work as a “cleanse” or detox. But, with society’s low levels of fruit and vegetable eating, having the option to access nutrients and bioactives in a cheap, easy and tasty way shouldn’t be discouraged either.
Emma Beckett, Adjunct Senior Lecturer, Nutrition, Dietetics & Food Innovation – School of Health Sciences, UNSW Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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How Internal Organs Can Be Affected By Spicy Foods (Doctor Explains)
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Capsaicin has an array of health-giving properties in moderation, but consumed in immoderation and/or without building up tolerance first, can cause problems—serious health issues such as heart attacks, brain spasms, torn esophagus, and even death can occur.
Heating up
Capsaicin, the compound that gives peppers their “heat”, is a chemical irritant and neurotoxin that activates pain receptors (TRPV1) tricking the brain into sensing heat, leading to a burning sensation, sweating, and flushing. The pain signal can also trigger the fight-or-flight response, causing a surge of adrenaline. Endorphins are eventually released, creating a pain-relief effect similar to a runner’s high, and ultimately it reduces systemic inflammation, boosts the metabolism, and increases healthy longevity.
However, in cases of extreme consumption and/or lack of preparation, woe can befall, for example:
- A man ruptured his esophagus after vomiting from eating a ghost pepper.
- A participant experienced severe brain blood vessel constriction (reversible cerebral vasoconstriction syndrome) after eating a Carolina reaper.
- A 25-year-old suffered permanent heart damage from cayenne pepper pills due to restricted blood flow.
- A teenager died after the “one chip challenge,” although the cause of death was undetermined.
So, what does moderation and preparation look like?
Moderation can be different to different people, since genetics do play a part—some people have more TRPV1 receptors than other people. However, for all people (unless in case of having an allergy or similar), acclimatization is important, and a much bigger factor than genetics.
Writer’s anecdote: on the other hand, when my son was a toddler I once left the room and came back to find him cheerfully drinking hot sauce straight from the bottle, so it can be suspected that genetics are definitely relevant too, as while I did season his food and he did already enjoy curries and such, he didn’t exactly have a background of entering chili-eating competitions.
Still, regardless of genes (unless you actually have a medical condition that disallows this), a person who regularly eats spicy food will develop an increasing tolerance for spicy food, and will get to enjoy the benefits without the risks, provided they don’t suddenly jump way past their point of tolerance.
On which note, in this video you can also see what happens when Dr. Deshauer goes from biting a jalapeño (relatively low on the Scoville heat scale) to biting a Scotch bonnet pepper (about 10x higher on the Scoville heat scale):
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
Capsaicin For Weight Loss And Against Inflammation
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Ozempic’s cousin drug liraglutide is about to get cheaper. But how does it stack up?
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Fourteen years ago, the older drug cousin of semaglutide (Ozempic and Wegovy) came onto the market. The drug, liraglutide, is sold under the brand names Victoza and Saxenda.
Patents for Victoza and Saxenda have now expried. So other drug companies are working to develop “generic” versions. These are likely be a fraction of current cost, which is around A$400 a month.
So how does liraglutide compare with semaglutide?
How do these drugs work?
Liraglutide was not originally developed as a weight-loss treatment. Like semaglutide (Ozempic), it originally treated type 2 diabetes.
The class of drugs liraglutide and semaglutide belong to are known as GLP-1 mimetics, meaning they mimic the natural hormone GLP-1. This hormone is released from your small intestines in response to food and acts in several ways to improve the way your body handles glucose (sugar).
How do they stop hunger?
Liraglutide acts in several regions of the unconscious part of your brain, specifically the hypothalamus, which controls metabolism, and parts of the brain stem responsible for communicating your body’s nutrient status to the hypothalamus.
Its actions here appear to reduce hunger in two different ways. First, it helps you to feel full earlier, making smaller meals more satisfying. Second, it alters your “motivational salience” towards food, meaning it reduces the amount of food you seek out.
Liraglutide’s original formulation, designed to treat type 2 diabetes, was marketed as Victoza. Its ability to cause weight loss was evident soon after it entered the market.
Shortly after, a stronger formulation, called Saxenda, was released, which was intended for weight loss in people with obesity.
How much weight can you lose with liraglutide?
People respond differently and will lose different amounts of weight. But here, we’ll note the average weight loss users can expect. Some will lose more (sometimes much more), others will lose less, and a small proportion won’t respond.
The first GLP-1 mimicking drug was exenatide (Bayetta). It’s still available for treating type 2 diabetes, but there are currently no generics. Exenatide does provide some weight loss, but this is quite modest, typically around 3-5% of body weight.
For liraglutide, those using the drug to treat obesity will use the stronger one (Saxenda), which typically gives about 10% weight loss.
Semaglutide, with the stronger formulation called Wegovy, typically results in 15% weight loss.
The newest GLP-1 mimicking drug on the market, tirzepatide (Mounjaro for type 2 diabetes and Zepbound for weight loss), results in weight loss of around 25% of body weight.
What happens when you stop taking them?
Despite the effectiveness of these medications in helping with weight loss, they do not appear to change people’s weight set-point.
So in many cases, when people stop taking them, they experience a rebound toward their original weight.
What is the dose and how often do you need to take it?
Liraglutide (Victoza) for type 2 diabetes is exactly the same drug as Saxenda for weight loss, but Saxenda is a higher dose.
Although the target for each formulation is the same (the GLP-1 receptor), for glucose control in type 2 diabetes, liraglutide has to (mainly) reach the pancreas.
But to achieve weight loss, it has to reach parts of the brain. This means crossing the blood-brain barrier – and not all of it makes it, meaning more has to be taken.
All the current formulations of GLP-1 mimicking drug are injectables. This won’t change when liraglutide generics hit the market.
However, they differ in how frequently they need to be injected. Liraglutide is a once-daily injection, whereas semaglutide and tirzepatide are once-weekly. (That makes semaglutide and tirzepatide much more attractive, but we won’t see semaglutide as a generic until 2033.)
What are the side effects?
Because all these medicines have the same target in the body, they mostly have the same side effects.
The most common are a range of gastrointestinal upsets including nausea, vomiting, bloating, constipation and diarrhoea. These occur, in part, because these medications slow the movement of food out of the stomach, but are generally managed by increasing the dose slowly.
Recent clinical data suggests the slowing in emptying of the stomach can be problematic for some people, and may increase the risk of of food entering the lungs during operations, so it is important to let your doctor know if you are taking any of these drugs.
Because these are injectables, they can also lead to injection-site reactions.
During clinical trials, there were some reports of thyroid disease and pancreatitis (inflammation of the pancreas). However, it is not clear that these can be attributed to GLP-1 mimicking drugs.
In animals, GLP-1 mimicking drugs drugs have been found to negatively alter the growth of the embryo. There is currently no controlled clinical trial data on their use during pregnancy, but based on animal data, these medicines should not be used during pregnancy.
Who can use them?
The GLP-1 mimicking drugs for weight loss (Wegovy, Saxenda, Zepbound/Mounjaro) are approved for use by people with obesity and are meant to only be used in conjunction with diet and exercise.
These drugs must be prescribed by a doctor and for obesity are not covered by the Pharmaceutical Benefits Scheme, which is one of the reasons why they are expensive. But in time, generic versions of liraglutide are likely to be more affordable.
Sebastian Furness, ARC Future Fellow, School of Biomedical Sciences, The University of Queensland
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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