Showing posts with label Diabetes. Show all posts
Showing posts with label Diabetes. Show all posts

Sunday, April 07, 2019

How Healthy are we? Pondering the status quo on World Health Day



The good folks at JDRF woke me up on a lazy Sunday morning with an email about April 7th being World Health Day. As I lay in bed listening to some Carnatic Music renditions (a form of South Indian music), a sometimes-morning routine for me on weekends, I noodled on the topic of health. For a while now, since we heard about the second ever patient to be rid of HIV, I have been thinking about writing a post about how slow progress in medicine has been, and how much progress is yet to be made.

Yes, the post is somber in many ways, but the goal here is not to depress or take away from the progress we have made, but to serve as a yardstick for where we need to go from here.

1. AIDS/HIV

The HIV virus is the most impacting of several that jumped to humans from other animals - a phenomenon termed Zoonosis. Humans have been suffering from HIV infections and its consequence, AIDS, for just about 5 decades now, and we have so far cured TWO patients, and that is, only because of their special circumstances!

Given the fatal consequences, and the innumerable deaths the virus has led to, it stands in stark contrast to other victories of the past, such as against smallpox, another consequence of Zoonosis.

Yes, the HIV virus is very tricky and is ancient (it appears the Chimpanzees fought it off millennia ago). However, it shows that for all our understanding of chemistry, biology, microbiology, virology and genetics, we are as of now, quite unequal to the task.

And as I mentioned above, both patients who are in remission for HIV had special circumstances, and their doctors were courageous, taking more risks than most have. And that is one of several problems I wish to discuss in this post.

2. Cancer


Yes, decades of promises and billions of dollars we have no cure for cancer, except for the most incidental cases. In fact, we don't even understand cancer well enough. Theories have come and gone, resembling fads of yesteryears.

For the most part, cancer therapies resemble what I call "fancy bloodletting"with the rare exception, such as with thyroid cancer. Thyroid cancer, in some cases can be cured by injecting radioactive Iodine, which the thyroid gland laps greedily, as it evolved to (it will take up Iodine, radioactive or otherwise, that is). You then wait as the radioactive Iodine destroys the cancerous thyroid cells.

You may then ask, why we haven't found extended this type of solution to mos types of cancer. Well, we haven't done a good job of understanding genetics, biomarkers and the other aspects of biological science which would provide us with the tools necessary to advance cancer therapy past horrifying drugs or radiation.

I personally find it appalling that it is not illegal to use "inoperable tumor" as an excuse to send a patient home to die!

3. Chronic "Lifestyle" Diseases

Now, we all share the blame for this. As societies prosper, especially in developing countries like India, unhealthy lifestyles are leading to High Blood Pressure, Obesity, Diabetes and other conditions that cause decline in Quality of Life and in some cases, also lead to mortality. In the past couple of decades, there has been some modicum of progress with respect to blood pressure (no, NOT renal denervation, more on that in a minute), diabetes and cardiovascular care, but people are making themselves sicker faster than medicine can catch up. More awareness will get us part of the way, but this is one of those areas of health that can be tackled as a team effort.

4. Barbarism, Renal Denervation and the Poverty of R&D


When I first learned of renal denervation, I was immediately alarmed. It continues to irk me today, that this was not the universal reaction. Maybe I am overly sensitive to such nonsense, which is whata this is, because I have come across this before. I was once an intern at a company that burned millions of dollars (!) on the path to treating migraine with visual aura by closing the inter-atrial septum. Yeah!

Renal Denervation is based on some "research" around the middle of the previous century, in a Mary-Shelley-esque manner, someone toasted renal nerves to notice a drop in blood pressure. Without much further research into the long term effects of doing this, someone dusted this off the basement of some library and turned it into Ardian, which Medtronic then hyped the medical device industry into a frenzy, by ridiculously overpricing Ardian during the acquisition.

I do not buy the theory that Medtronic "botched' the clinical trials. I think humanity is lucky in that pharmaceuticals have progressed enough to be better than the weed-killer approach to blood pressure management.

What we should truly focus on is this - the medical device industry is really behind the curve on basic research. Too much of the focus is on development, some of it quite mindless, like the use of drills to remove arterial plaque!

This poverty of R&D efforts is one of the key reasons why progress in medicine has been so slow. 

5. Private Fraud and other Misbehavior

Elizabeth Holmes and Theranos are but the latest examples of people and organizations behaving badly. History is full of such examples, and this is in fact how the FDA came into existence. That, there is an assault underfoot to water down the FDA will be discussed momentarily.

The way some companies approach regulations is not as the framework to work within, but the dilapidated fencing to test aggressively for weaknesses. The lack of ethics causes problems for medicine and society.

6. Bad Governance


Just a couple of days ago, I posted about the secret database FDA maintained and helped an unknown number of medical devices cover up a further unknown adverse medical device events, masking the true limits of such devices and the harm caused by them. Spanning multiple administrations, this struck a blow to the very heart of why the FDA was created in the first place.

World over, many governments are undermining healthcare, in more ways than one, eventually harming both current and future generations.

7. Medicine Inequality

Under-served populations suffer from many inequalities in medicine. The aged, women, people below the poverty line, entire regions of the planet - several cohorts constitute under-served populations. Pricing is one. Access is another. The deliberate act of making medical devices disposable, fundamental to the chosen business model for many organizations in the industry is another. Patents, regulatory pathways, corporate greed - the factors abound. Suffice it to say, much work remains to be done.


Conclusion - Opportunities abound! 


The aforementioned points can be seen one of two ways. One way would be to be angry and depressed. The more positive approach would be to see all of these as opportunities ripe for innovation to cause true, lasting change.

That is the purpose and spirit with which this post was written.

Rooting out unethical behavior, bad governance, downright criminal behavior, making medicine affordable and equal, causing real technological progress, improving Quality of Life (QoL), reducing morbidity and mortality are all challenges we can take up and whittle down!

So, Happy World Health Day!

As usual, if you want to be reminded of the event annually, here is an event:




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Did you enjoy this post? Please subscribe for more updates, using the sidebar. Have ideas or blog posts you'd like to see here? Contact me at yamanoor at gmail dot com.

References:

1. Map of the World: https://www.pexels.com/photo/black-green-brown-continent-87652/

2. Blood Draw Image: https://unsplash.com/photos/Zp7ebyti3MU

3. Image of Breast Cancer Ribbon: https://www.pexels.com/photo/awareness-cancer-design-pink-579474/

4. Image of Blood Testing Equipment: https://www.pexels.com/photo/health-medical-medicine-diet-46173/

5. Image of Broken Glass: https://burst.shopify.com/photos/broken-shards-of-glass-hanging-in-a-boarded-up-window?q=looking+glass

6. Image of Syringe: https://isorepublic.com/photo/syringe-with-blood/

7. Image of Hammer: https://www.pexels.com/photo/close-up-court-courthouse-hammer-534204/

8. Image of Beautiful Old Lady: https://www.pexels.com/photo/grandmother-making-faces-34540/

9. Image of Cheerful Team: https://www.pexels.com/photo/group-of-people-raising-right-hand-1059120/

Sunday, December 31, 2017

Theranos lives... to die another day?


I would be surprised if you were either in the medical devices/diagnostics or the general greed, stupidity and avarice industry and had never heard of Theranos. I mean you'd be in some strange Rip Van Winkle territory there. And, of course, being aware doesn't mean staying in touch. And of course, after all the revelations of unethical behavior, lawsuits and settlements, I thought this pathetic organization was going to go off into the sunset. Clearly, I am wrong!

Fortress Investment Group, probably consisting of people who have gone out of their minds (but perhaps not so much as the folks of Japan's SoftBank who plan to acquire Fortress) has invested in Theranos, with a $100mn loan based on "certain product and operational milestones", apparently. Interestingly enough, the lack of a product and any meaningful operations is what got Theranos here. The founder, used the valley's insanity and potentially other influences, as well as the valley's ignorance of medicine to raise money and label herself as all kinds of the "next big thing".

I could go on and on, but I am not sharing my sense of hubris or bitterness. I do have to point out, I was always quite suspicious of Theranos (I had even considered blogging about this, but unfortunately, I was much busier at that time). When suspicions that Theranos is a failure and had engaged in deceptive practices (they really, really ticked someone off at WSJ, where people engaging in such practices are adored and revered typically), I had posted something on social media, and one of my own close friends, who fancies himself a Valley entrepreneur said, "you have to fake it till you make it". Not so in healthcare, friends. Just give up the idea. Reality eventually catches up to you.

There is more here as to the irrationality that Silicon Valley pushes. Let's take a look at a few salient points:

1. From Theranos to Google's Powerpoint Slides (or is it Google Deck?, as if that is what matters) about using your disposable contact lenses to monitor blood glucose, there is a lot of remarkable ignorance of basic science and the stringent requirements of accurate diagnosis of health condition parameters.

2. The irrational exuberance also extends to complete ignorance that diagnosis is only part of the problem. There are no instant, magical cures. A cure for diabetes does not exist today. Yes, it may and well certainly exist in the future through CRISPR or some equivalent, but even then, there is a business model gap here that people simply don't get. There is NO difference, if you instantly diagnose me with diabetes or sickle cell anemia, or if it takes two weeks. Well heck, knowing that most of these diagnoses can be false positive, I will go to the clinic any way and spend time and money getting a deeper blood draw and go through with a detailed test and a human-in-the-loop diagnosis.

There are specific times and places where a certain subset of diseases would require diagnoses. They would also afford patients and healthcare professionals significant savings at such times. War, post-natural disasters, space travel, travel and living in extreme locations on the planet are all examples of such situations. At other times, the advantages and cost savings are far and few.

You could ask, "well, then why did Walgreens even get in on that awful deal with Theranos? " I assume they just fell for shoddy marketing. Regardless of whether or not they extract a payment from Theranos, some of the procurement folks at Walgreens need to be retrained.

Sure, there are tests that are growing in popularity, such as Cologuard, or mail-in free to cheap testing for HIV. Well, there are advantages to both. And, specificity. Colon cancer testing is painful. And this test, that has you mailing stool samples is only predicated for people who have never had the cancer before and who are not hereditarily pre-disposed to have colon cancer. As to HIV testing, you can now get on PREP, or, at best, knowing sooner means the condition remains chronic but not terminal for most people. Where advantages are afforded, costs and pain can be saved and treatment is available, diagnostic tests will succeed commercially and with purpose.

3. I did give away some of the farm at the end of the last point, but patient/population enthusiasm is key. Yes, you'd get the hypochondriacs to jump on it. And of course the health-crazy (there is a line where consciousness crosses over to plain nuttery). But what about the vast majority of people out there? How are you going to convince them to use such tools when they feel healthy? This is always going to be a problem. Behavior modification and awareness are key areas of my own research and I can tell you, when you separate reality from the valley's hype, adoption is really slow.

4. There is a reputation problem, a problem that Theranos has created. Sure, like a swamp monster, Theranos somehow lives and may raise one day again. However, they have created a genuine problem for everyone, including the competitors whose devices they ran as a cover to provide some of the diagnostic information. When some organization (hopefully someone else) creates an actual working diagnostic scan, they are going to have to put in immense effort to prove that their tests are accurate, and they have an actual value.

5. What would I recommend?

I am sorry, but I think for a long time, till genetics and diagnostics become better and have corresponding interventions become available, these mass tests are going to be absolutely worthless nonsense.

Tests that have high precision and accuracy, and can lend specific therapeutic interventions as a result of their use are probably the way to go.

The fundamentals have not disappeared just because the valley has decided they must: commonsense, realities of diagnostics, treatments, patient interest, payment issues and more. Focus on them, solve the problems, look for innovation, not nonsensical disruption (I still have a magazine advising us all to be "like Uber". Would you?).

References:

1. On the funding (Fortune calls it a perverse Christmas Gift, in case you thought I was being harsh): http://fortune.com/2017/12/23/theranos-secures-100-million-in-new-funding-from-fortress-capital/

2. Image, Courtesy: https://www.pexels.com/photo/white-and-clear-glass-syringe-161628/

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Thursday, June 29, 2017

A couple of thoughts on skin and medical devices


I know a lot of people dislike being advertised to, but I lap it up, depending on what it is. This morning, LinkedIn had a suggested post, on skin adhesives for wearable devices by a very knowledgeable 3M Professional. It makes for a very interesting read, and I recommend you peruse it, from the linked reference below. Just so you know, I do NOT have any relationship, financial or otherwise with the organization, in case you are wondering.

The article had a lot of good advice, basics yes, but worth the refresh. I thought I would recount some, with a few thoughts of my own.

It is true that adhesives must be understood and tested before and during design. It is also important not to over-design, and to pick and use an adhesive that is just appropriate for the application.

Now, I want to recount a few thoughts, also relevant to skin, wearables etc., from my own design and use experience:

1. Understanding Skin

My first major project in graduate school was as part of a team, where we designed a skin testing device for Unilever. They wanted us to design a device that would reproduce a measure of one of skin's properties. We searched and searched, and learned a lot about skin through the design process. We even met a quirky expert in skin research at UCSF and learned a lot from him. This is the first step in design. Education. Skin is very quirky. It is an organ, the largest in the human body, and essentially, its outer layers are dead. It destructs and regenerates on a fairly regular basis.

Skin varies in its properties based on the sex, age and race of a person, sure, but it doesn't stop there. It ALSO varies based on the exposure of the person to sun and other environments harsh or gentle. Exposure to moisture, illness and other factors also change its properties and nature.

Skin doesn't just protect your internal organs, which it does really well by the way, it also engages in thermoregulation through sweat.

All in all, it is a very fascinating organ. And you need to understand it deeply and well. Hire a skin expert. Talk to a number of them, but more importantly, you HAVE skin (in the game, and otherwise)! Well, duh! Your designs - you should try them on yourself. I will expand on this later, but unless we are talking about ablation and such, for most other products, such as wearables, you have no excuse if you are not using the devices on yourself, at least at some basic level to develop a much better understanding of skin and its properties.

2, Testing Skin

So, in our design project, after much learning and planning, we wanted to measure torsional stiffness as an analogue to skin elasticity. We theorized that skin that is exposed to harsh environments, or skin in older people would be less elastic and thus stiffer. We designed our device and with the generous help of a Design Expert from IDEO turned our prototypes into a beautifully 3D Printed device in 2002!

However, well before we got there, not only were we testing ourselves, we were also testing others. Our device needed to attach itself to skin temporarily. We, in fact, found these wonderful, round, adhesive-backed, single use Velcro Pads (that I remembered today, after all that time) that 3M made, for attachment with skin. We liked it, and it ended up dictating the size of our shaft, but would other people?

So, in a way, that if we were a real company would have gotten us in a lot of trouble, we went down and waited outside Stanford's famous TreeHouse eatery and just asked people to tell us what they felt like, using our device. We had done this with the famous "dark horse prototype" as part of our class, where we had literally used Digital Calipers (Vernier's Calipers for those with a British/Indian background) to stretch skin and see how it bounced back. That time, we had used double sided sticky tape (yuck, yes, but prototype, remember!)

In return, we told them what we were doing, and gave away chocolates (perhaps for a future dental device project, maybe? :D ). I do not suggest you do that. But, like we did in a start-up I worked for, later, you can get an IRB and do some testing on people, compensating them for real cash. Ask them about how they feel wearing, or using or testing with your device. Ask them about comfort and seek to understand.

Even before that, make sure you like it. If you can't dogfood your own devices (perhaps, not the right attitude when designing a radiotherapy device), why use it on others. For example, we quickly ruled that men like me, with large, grubby, hairy hands are NOT the ideal candidate for our device! Velcro can stick to hear and make you uncomfortable!! Unilever mainly wanted to market this to women, so this was not a huge drawback you see....

3. More On Testing

I interned at a start up focused on a wearable blood glucose diagnostic device that was trying to use 100nl - 250nl of blood only for glucose level testing. The idea was to encourage diabetics to actually test themselves up to 4X a day, a plan for which the adherence was quite low. The reason is simple. It is QUITE painful to test yourself when a device requires higher quantities of blood. Do you know how I know? We tested ourselves. Me, other engineers, and even non-engineering employees in the start up. Lancing causes quite a bit of pain, and then if you lance yourself enough times, your vessels get protected by, you guessed it, your skin, and they go deeper and getting blood out is even harder.

We even joked about carrying some paperwork to show we weren't addicts, in case we were pulled over. We half-joked actually. We really had that many lances on our arms, forehands, etc. Because, even with recruited patients, we could only get so many draws out. For the rest, and to gain a deeper understanding, we did have to lance ourselves quite a number of times.

Yes, there is a CLEAR market for non-invasive blood glucose testing!

4. Wear Your Wearables

Or, at least wear someone else's. I bought this Fitbit Surge, almost 16 years after the last watch I wore! I did, in the interim try to get back to watches, but I just gave up as the phones were able to tell time. Of course, the resurgence of these devices is due to their ability to keep time, but also to give you your Heart Rate, your step count and so on. It was very very compelling to get one of these!

In fact, because we both own Fitbits, my brother and I have designed some motivational open source hardware jigs to help us boost our counts when we start lagging. We will be presenting this at a couple of different conferences as the design iteration progresses. Watch out this space for announcements!

But more to the point, wearing this device has taught me a number of things. I had that initial ramp up where my skin reacted to the device as if it is an allergy. Then, I got back to that problem of a certain portion of my hand looking lighter due to reduced sun exposure. Also, this particular device keeps track of my sleeping habits, and even though I suffer from insomnia, I do not like wearing this thing at night, because after about 16 hours or so, this thing does get irritating. And yet, I like the belt-buckle design, because I can remove it whenever I want. I am having a hard time envisioning a long-term, Velcro or adhesive backed device on me. But, I know, other people might react differently.

Look closer at the picture. Dust and dirt are another problem. (The scratches are from my cats showing me love, so there's not much a medical device can do there :) ) I hope you get the general idea. Wearing the devices yourself, whether yours, or a competitor's, or of someone else (I am not working on a wearable right now, but hey, if you are looking for someone...), helps you understand the underlying issues. And you know, this extends beyond just skin and wearables!

Subscribe and Support, Please!

Did you enjoy this post? Please subscribe for more updates, using the sidebar. Have ideas or blog posts you'd like to see here? Contact me at yamanoor at gmail dot com.

References:

1. The 3M Article on Adhesives for Skin: https://www.mdtmag.com/article/2017/06/six-stick-skin-challenges-medical-device-engineers-must-understand?WT.mc_id=pr_MedTech_WearItWell_07/01/2017&WT.tsrc=Article

2. First image, courtesy, Pexels: https://www.pexels.com/photo/person-with-black-pedicure-raise-both-2-hands-218939/

Sunday, November 14, 2010

The World Diabetes Day is here

November is Diabetes Awareness Month (incidentally, it is also the Lung Cancer Awareness Month) and this year, November 14th is the World Diabetes Day.

Diabetes, or originally Diabetes Mellitus derived it's name from the sweet taste of urine that was used as a diagnostic by the Romans. As a disease, it is no stranger to human civilization and has afflicted humans for a while now.

Type 1: As an autoimmune disease, Diabetes Type I, is inherently a disease where the body simply cannot produce insulin via the "islets of Langerhans" thus unable to produce enough energy needed for subsistence. This disease is more prevalent in young children and in adults. Through insulin therapies, this disease can be managed, but is debilitating nevertheless.

Type 2: Diabetes Type 2, typically has an adult onset. In this condition, the body is simply unable to produce enough insulin to convert sugar into energy, or the cells do not use the insulin as expected. Type 2 is the more prevalent form, has been diagnosed in 24 million Americans (an estimate upped form 21 million) and is expected to afflict more people, who are probably simply unaware of it. In countries like India, and among Indians everywhere it has reached epidemic proportions as well.

Some of the causes include unhealthy life styles, eating and working habits and so on. People with rice based diets of Asian origin appear to be afflicted by this disease more often.

Type 3: Is there a type 3? New research has shown that a certain number of children with Type 1 Diabetes also show tendencies for Diabetes Type 2. This is a risky condition and thus, even though it has been statistically delineated, has been assigned it's own category. The "double diabetes" as it is known is attributed to patients being overweight and a general lack of awareness.

Apart from this, gestational diabetes refers to the onset of diabetes during pregnancy. Gestational diabetes may then prolong throughout the mother's lifetime and can become Type 2 diabetes at that point.

Awareness

The biggest gap, when it comes to diabetes stems form a lack of awareness. Diabetes would be diagnosed in a lot more people if only they were made aware of diabetes and the symptoms and the predispositions.

One has to remember that people with diabetes Type 2 may not even have the symptoms sometimes. Please refer to the American Diabetes Association (ADA) website for a list of symptoms to watch out for either type of diabetes:

http://www.diabetes.org/diabetes-basics/symptoms/

You should consider taking a Diabetes Risk Test:

http://www.diabetes.org/diabetes-basics/prevention/diabetes-risk-test/

The World Diabetes Day website also lists some risk factors:

http://www.worlddiabetesday.org/the-campaign/diabetes-education-and-prevention/diabetes-risk-factors

You should also look at some of the warning signs here:

http://www.worlddiabetesday.org/the-campaign/diabetes-education-and-prevention/diabetes-warning-signs

TuDiabetes:

My friends at TuDiabetes ( http://www.tudiabetes.org ) a non-profit organization focused on Diabetes Awareness, Actions and other Campaigns have a video for you!

Saturday, October 20, 2007

Pfizer & Dell get down with online social networks & blogging?

[Click on Post Title for Link to External Article]

Also read this one for Dell: http://www.buzzmachine.com/2007/10/18/dell-hell-the-end/

Another blog on Pfizer and Exubra you might say?! What can I do? Everyone's doin' it, so I had to too.. ;). I will try to make this interesting though...

Okay, so we all learned (learnt) about Pfizer's earnings this past week.

There was a slightly heavy write-off on the failure of Exubra (about $2.8 bn you might say). And some of us also probably read about Nektar's CEO steaming about how Pfizer didn't even let them know about the fact that they were dropping Exubra and they had to learn about it from Pfizer's earnings call...

http://www.bizjournals.com/sanjose/stories/2007/10/15/daily84.html

Come on, what are press releases for, eh, Howard Robin? You should be reading them, and Pfizer was testing you...

If you ignore this dark side of Pfizer where they blindside their own collaborators, you can begin to look at their "positive" side. And that is this:

They realized the problem with Exubra's sales was "marketing".

I see. So, it had nothing to do with 'inhalable insulin' being one of biotech's biggest challenges or that Nektar seemingly modified a supersized birdfeeder (read the "bizjournals" reference to a blogger saying so..wasn't me!) to cause the delivery of Exubra.

Oh I am sure Exubra's failure had to do with marketing. Why wouldn't it? Just look at how well Pfizer handled its PR with Nektar...through a press release. Its like breaking up over the phone...

Anyhow, now that the really long premise has been set for the whole post, lets look at Pfizer's next move to mitigate their "marketing" goof up. They are going "facebook" on physicians.

They are now going to walk the online landmine that is "Sermo". Sermo, apparently Latin for conversation (because latin is very relevant) is a take on the erstwhile "stitch n' bitch" approach that doctors usually take to advance their practice.

Apparently Sermo doesn't regulate what the doctors post after it verifies that in fact they are MDs. (In other issues I found this FAQ badly in need of grammatical touch-up, "How will Sermo paying clients use information from the Sermo community?"). Plus, rightfully enough, the MDs don't need to reveal who they are when they post...

Could all this mean more PR problems for Pfizer in the future? Potentially! Maybe they should merge the PR and Marketing departments to "strategically" "leverage" their "operational advantages" to "maximize" something or the other.

I can totally understand why they would use an "innovative" technique to solve a fundamental problem. After all "old-school" techniques such as plain talk with doctors won't lead to good marketing results now, would they?

Meanwhile, I think Dell has actually done something meaningful with online collaborations to try and improve its stature among its customers. Mostly because they make a consumer product, and they cannot reach out to thousands of customers on a personal basis.

As for me, I hope Sermo's execs read Pfizer's press releases closely (A Google Alert might help). And, if this trend continues, eHarmony and Chemistry.com might have another "vertical" "channel" to explore.

PS: Just feeling very sarcastic today. Most of the double quotes refer to "corporate speak" that you could download onto flash cards and spend many a lazy afternoon making up meaningless gibber...for fun! It could land you a job with PR, Marketing, Cross Department Collaboration, Business Development or Executive Management!!!

PS2 (not to be confused with Sony's suffering product line): I was looking for the "birdfeeder" reference and came up with:

http://www.pharmalot.com/2007/10/exubera-titanic-failure-or-a-kindlerberg/

http://pharmagiles.blogspot.com/2007/10/101-uses-of-exubera-bong_12.html

Oh, so much fun...

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